Mercurial > hg > nginx
annotate src/http/modules/ngx_http_grpc_module.c @ 7646:2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
As per https://tools.ietf.org/html/rfc7540#section-8.1,
: A server can send a complete response prior to the client
: sending an entire request if the response does not depend on
: any portion of the request that has not been sent and
: received. When this is true, a server MAY request that the
: client abort transmission of a request without error by
: sending a RST_STREAM with an error code of NO_ERROR after
: sending a complete response (i.e., a frame with the
: END_STREAM flag). Clients MUST NOT discard responses as a
: result of receiving such a RST_STREAM, though clients can
: always discard responses at their discretion for other
: reasons.
Previously, RST_STREAM(NO_ERROR) received from upstream after
a frame with the END_STREAM flag was incorrectly treated as an
error. Now, a single RST_STREAM(NO_ERROR) is properly handled.
This fixes problems observed with modern grpc-c [1], as well
as with the Go gRPC module.
[1] https://github.com/grpc/grpc/pull/1661
author | Ruslan Ermilov <ru@nginx.com> |
---|---|
date | Thu, 23 Apr 2020 15:10:24 +0300 |
parents | 6439ef81e37d |
children | 716eddd74bc2 |
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 | |
7619
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gRPC: variables support in the "grpc_pass" directive.
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30 ngx_array_t *grpc_lengths; |
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gRPC: variables support in the "grpc_pass" directive.
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31 ngx_array_t *grpc_values; |
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gRPC: variables support in the "grpc_pass" directive.
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32 |
7233 | 33 #if (NGX_HTTP_SSL) |
34 ngx_uint_t ssl; | |
35 ngx_uint_t ssl_protocols; | |
36 ngx_str_t ssl_ciphers; | |
37 ngx_uint_t ssl_verify_depth; | |
38 ngx_str_t ssl_trusted_certificate; | |
39 ngx_str_t ssl_crl; | |
40 ngx_str_t ssl_certificate; | |
41 ngx_str_t ssl_certificate_key; | |
42 ngx_array_t *ssl_passwords; | |
43 #endif | |
44 } ngx_http_grpc_loc_conf_t; | |
45 | |
46 | |
47 typedef enum { | |
48 ngx_http_grpc_st_start = 0, | |
49 ngx_http_grpc_st_length_2, | |
50 ngx_http_grpc_st_length_3, | |
51 ngx_http_grpc_st_type, | |
52 ngx_http_grpc_st_flags, | |
53 ngx_http_grpc_st_stream_id, | |
54 ngx_http_grpc_st_stream_id_2, | |
55 ngx_http_grpc_st_stream_id_3, | |
56 ngx_http_grpc_st_stream_id_4, | |
57 ngx_http_grpc_st_payload, | |
58 ngx_http_grpc_st_padding | |
59 } ngx_http_grpc_state_e; | |
60 | |
61 | |
62 typedef struct { | |
63 size_t init_window; | |
64 size_t send_window; | |
65 size_t recv_window; | |
66 ngx_uint_t last_stream_id; | |
67 } ngx_http_grpc_conn_t; | |
68 | |
69 | |
70 typedef struct { | |
71 ngx_http_grpc_state_e state; | |
72 ngx_uint_t frame_state; | |
73 ngx_uint_t fragment_state; | |
74 | |
75 ngx_chain_t *in; | |
76 ngx_chain_t *out; | |
77 ngx_chain_t *free; | |
78 ngx_chain_t *busy; | |
79 | |
80 ngx_http_grpc_conn_t *connection; | |
81 | |
82 ngx_uint_t id; | |
83 | |
7379
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84 ngx_uint_t pings; |
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85 ngx_uint_t settings; |
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86 |
7233 | 87 ssize_t send_window; |
88 size_t recv_window; | |
89 | |
90 size_t rest; | |
91 ngx_uint_t stream_id; | |
92 u_char type; | |
93 u_char flags; | |
94 u_char padding; | |
95 | |
96 ngx_uint_t error; | |
97 ngx_uint_t window_update; | |
98 | |
99 ngx_uint_t setting_id; | |
100 ngx_uint_t setting_value; | |
101 | |
102 u_char ping_data[8]; | |
103 | |
104 ngx_uint_t index; | |
105 ngx_str_t name; | |
106 ngx_str_t value; | |
107 | |
108 u_char *field_end; | |
109 size_t field_length; | |
110 size_t field_rest; | |
111 u_char field_state; | |
112 | |
113 unsigned literal:1; | |
114 unsigned field_huffman:1; | |
115 | |
116 unsigned header_sent:1; | |
117 unsigned output_closed:1; | |
7350
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gRPC: disabled keepalive when sending control frames was blocked.
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118 unsigned output_blocked:1; |
7233 | 119 unsigned parsing_headers:1; |
120 unsigned end_stream:1; | |
7349
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gRPC: improved keepalive handling.
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121 unsigned done:1; |
7233 | 122 unsigned status:1; |
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
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123 unsigned rst:1; |
7233 | 124 |
125 ngx_http_request_t *request; | |
7619
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gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
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126 |
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127 ngx_str_t host; |
7233 | 128 } ngx_http_grpc_ctx_t; |
129 | |
130 | |
131 typedef struct { | |
132 u_char length_0; | |
133 u_char length_1; | |
134 u_char length_2; | |
135 u_char type; | |
136 u_char flags; | |
137 u_char stream_id_0; | |
138 u_char stream_id_1; | |
139 u_char stream_id_2; | |
140 u_char stream_id_3; | |
141 } ngx_http_grpc_frame_t; | |
142 | |
143 | |
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144 static ngx_int_t ngx_http_grpc_eval(ngx_http_request_t *r, |
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145 ngx_http_grpc_ctx_t *ctx, ngx_http_grpc_loc_conf_t *glcf); |
7233 | 146 static ngx_int_t ngx_http_grpc_create_request(ngx_http_request_t *r); |
147 static ngx_int_t ngx_http_grpc_reinit_request(ngx_http_request_t *r); | |
148 static ngx_int_t ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in); | |
149 static ngx_int_t ngx_http_grpc_process_header(ngx_http_request_t *r); | |
150 static ngx_int_t ngx_http_grpc_filter_init(void *data); | |
151 static ngx_int_t ngx_http_grpc_filter(void *data, ssize_t bytes); | |
152 | |
153 static ngx_int_t ngx_http_grpc_parse_frame(ngx_http_request_t *r, | |
154 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
155 static ngx_int_t ngx_http_grpc_parse_header(ngx_http_request_t *r, | |
156 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
157 static ngx_int_t ngx_http_grpc_parse_fragment(ngx_http_request_t *r, | |
158 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
159 static ngx_int_t ngx_http_grpc_validate_header_name(ngx_http_request_t *r, | |
160 ngx_str_t *s); | |
161 static ngx_int_t ngx_http_grpc_validate_header_value(ngx_http_request_t *r, | |
162 ngx_str_t *s); | |
163 static ngx_int_t ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, | |
164 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
165 static ngx_int_t ngx_http_grpc_parse_goaway(ngx_http_request_t *r, | |
166 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
167 static ngx_int_t ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
168 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
169 static ngx_int_t ngx_http_grpc_parse_settings(ngx_http_request_t *r, | |
170 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
171 static ngx_int_t ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
172 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
173 | |
174 static ngx_int_t ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, | |
175 ngx_http_grpc_ctx_t *ctx); | |
176 static ngx_int_t ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, | |
177 ngx_http_grpc_ctx_t *ctx); | |
178 static ngx_int_t ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
179 ngx_http_grpc_ctx_t *ctx); | |
180 | |
181 static ngx_chain_t *ngx_http_grpc_get_buf(ngx_http_request_t *r, | |
182 ngx_http_grpc_ctx_t *ctx); | |
183 static ngx_http_grpc_ctx_t *ngx_http_grpc_get_ctx(ngx_http_request_t *r); | |
184 static ngx_int_t ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
185 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc); | |
186 static void ngx_http_grpc_cleanup(void *data); | |
187 | |
188 static void ngx_http_grpc_abort_request(ngx_http_request_t *r); | |
189 static void ngx_http_grpc_finalize_request(ngx_http_request_t *r, | |
190 ngx_int_t rc); | |
191 | |
7234
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gRPC: special handling of the TE request header.
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192 static ngx_int_t ngx_http_grpc_internal_trailers_variable( |
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193 ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); |
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194 |
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195 static ngx_int_t ngx_http_grpc_add_variables(ngx_conf_t *cf); |
7233 | 196 static void *ngx_http_grpc_create_loc_conf(ngx_conf_t *cf); |
197 static char *ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, | |
198 void *parent, void *child); | |
199 static ngx_int_t ngx_http_grpc_init_headers(ngx_conf_t *cf, | |
200 ngx_http_grpc_loc_conf_t *conf, ngx_http_grpc_headers_t *headers, | |
201 ngx_keyval_t *default_headers); | |
202 | |
203 static char *ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
204 void *conf); | |
205 | |
206 #if (NGX_HTTP_SSL) | |
207 static char *ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, | |
208 ngx_command_t *cmd, void *conf); | |
209 static ngx_int_t ngx_http_grpc_set_ssl(ngx_conf_t *cf, | |
210 ngx_http_grpc_loc_conf_t *glcf); | |
211 #endif | |
212 | |
213 | |
214 static ngx_conf_bitmask_t ngx_http_grpc_next_upstream_masks[] = { | |
215 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, | |
216 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, | |
217 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, | |
218 { ngx_string("non_idempotent"), NGX_HTTP_UPSTREAM_FT_NON_IDEMPOTENT }, | |
219 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 }, | |
220 { ngx_string("http_502"), NGX_HTTP_UPSTREAM_FT_HTTP_502 }, | |
221 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 }, | |
222 { ngx_string("http_504"), NGX_HTTP_UPSTREAM_FT_HTTP_504 }, | |
223 { ngx_string("http_403"), NGX_HTTP_UPSTREAM_FT_HTTP_403 }, | |
224 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, | |
225 { ngx_string("http_429"), NGX_HTTP_UPSTREAM_FT_HTTP_429 }, | |
226 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, | |
227 { ngx_null_string, 0 } | |
228 }; | |
229 | |
230 | |
231 #if (NGX_HTTP_SSL) | |
232 | |
233 static ngx_conf_bitmask_t ngx_http_grpc_ssl_protocols[] = { | |
234 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
235 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
236 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
237 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, | |
238 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, | |
239 { ngx_string("TLSv1.3"), NGX_SSL_TLSv1_3 }, | |
240 { ngx_null_string, 0 } | |
241 }; | |
242 | |
243 #endif | |
244 | |
245 | |
246 static ngx_command_t ngx_http_grpc_commands[] = { | |
247 | |
248 { ngx_string("grpc_pass"), | |
249 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
250 ngx_http_grpc_pass, | |
251 NGX_HTTP_LOC_CONF_OFFSET, | |
252 0, | |
253 NULL }, | |
254 | |
255 { ngx_string("grpc_bind"), | |
256 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, | |
257 ngx_http_upstream_bind_set_slot, | |
258 NGX_HTTP_LOC_CONF_OFFSET, | |
259 offsetof(ngx_http_grpc_loc_conf_t, upstream.local), | |
260 NULL }, | |
261 | |
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262 { ngx_string("grpc_socket_keepalive"), |
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263 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
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264 ngx_conf_set_flag_slot, |
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265 NGX_HTTP_LOC_CONF_OFFSET, |
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266 offsetof(ngx_http_grpc_loc_conf_t, upstream.socket_keepalive), |
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267 NULL }, |
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268 |
7233 | 269 { ngx_string("grpc_connect_timeout"), |
270 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
271 ngx_conf_set_msec_slot, | |
272 NGX_HTTP_LOC_CONF_OFFSET, | |
273 offsetof(ngx_http_grpc_loc_conf_t, upstream.connect_timeout), | |
274 NULL }, | |
275 | |
276 { ngx_string("grpc_send_timeout"), | |
277 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
278 ngx_conf_set_msec_slot, | |
279 NGX_HTTP_LOC_CONF_OFFSET, | |
280 offsetof(ngx_http_grpc_loc_conf_t, upstream.send_timeout), | |
281 NULL }, | |
282 | |
283 { ngx_string("grpc_intercept_errors"), | |
284 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
285 ngx_conf_set_flag_slot, | |
286 NGX_HTTP_LOC_CONF_OFFSET, | |
287 offsetof(ngx_http_grpc_loc_conf_t, upstream.intercept_errors), | |
288 NULL }, | |
289 | |
290 { ngx_string("grpc_buffer_size"), | |
291 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
292 ngx_conf_set_size_slot, | |
293 NGX_HTTP_LOC_CONF_OFFSET, | |
294 offsetof(ngx_http_grpc_loc_conf_t, upstream.buffer_size), | |
295 NULL }, | |
296 | |
297 { ngx_string("grpc_read_timeout"), | |
298 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
299 ngx_conf_set_msec_slot, | |
300 NGX_HTTP_LOC_CONF_OFFSET, | |
301 offsetof(ngx_http_grpc_loc_conf_t, upstream.read_timeout), | |
302 NULL }, | |
303 | |
304 { ngx_string("grpc_next_upstream"), | |
305 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
306 ngx_conf_set_bitmask_slot, | |
307 NGX_HTTP_LOC_CONF_OFFSET, | |
308 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream), | |
309 &ngx_http_grpc_next_upstream_masks }, | |
310 | |
311 { ngx_string("grpc_next_upstream_tries"), | |
312 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
313 ngx_conf_set_num_slot, | |
314 NGX_HTTP_LOC_CONF_OFFSET, | |
315 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_tries), | |
316 NULL }, | |
317 | |
318 { ngx_string("grpc_next_upstream_timeout"), | |
319 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
320 ngx_conf_set_msec_slot, | |
321 NGX_HTTP_LOC_CONF_OFFSET, | |
322 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_timeout), | |
323 NULL }, | |
324 | |
325 { ngx_string("grpc_set_header"), | |
326 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
327 ngx_conf_set_keyval_slot, | |
328 NGX_HTTP_LOC_CONF_OFFSET, | |
329 offsetof(ngx_http_grpc_loc_conf_t, headers_source), | |
330 NULL }, | |
331 | |
332 { ngx_string("grpc_pass_header"), | |
333 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
334 ngx_conf_set_str_array_slot, | |
335 NGX_HTTP_LOC_CONF_OFFSET, | |
336 offsetof(ngx_http_grpc_loc_conf_t, upstream.pass_headers), | |
337 NULL }, | |
338 | |
339 { ngx_string("grpc_hide_header"), | |
340 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
341 ngx_conf_set_str_array_slot, | |
342 NGX_HTTP_LOC_CONF_OFFSET, | |
343 offsetof(ngx_http_grpc_loc_conf_t, upstream.hide_headers), | |
344 NULL }, | |
345 | |
346 { ngx_string("grpc_ignore_headers"), | |
347 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
348 ngx_conf_set_bitmask_slot, | |
349 NGX_HTTP_LOC_CONF_OFFSET, | |
350 offsetof(ngx_http_grpc_loc_conf_t, upstream.ignore_headers), | |
351 &ngx_http_upstream_ignore_headers_masks }, | |
352 | |
353 #if (NGX_HTTP_SSL) | |
354 | |
355 { ngx_string("grpc_ssl_session_reuse"), | |
356 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
357 ngx_conf_set_flag_slot, | |
358 NGX_HTTP_LOC_CONF_OFFSET, | |
359 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_session_reuse), | |
360 NULL }, | |
361 | |
362 { ngx_string("grpc_ssl_protocols"), | |
363 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
364 ngx_conf_set_bitmask_slot, | |
365 NGX_HTTP_LOC_CONF_OFFSET, | |
366 offsetof(ngx_http_grpc_loc_conf_t, ssl_protocols), | |
367 &ngx_http_grpc_ssl_protocols }, | |
368 | |
369 { ngx_string("grpc_ssl_ciphers"), | |
370 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
371 ngx_conf_set_str_slot, | |
372 NGX_HTTP_LOC_CONF_OFFSET, | |
373 offsetof(ngx_http_grpc_loc_conf_t, ssl_ciphers), | |
374 NULL }, | |
375 | |
376 { ngx_string("grpc_ssl_name"), | |
377 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
378 ngx_http_set_complex_value_slot, | |
379 NGX_HTTP_LOC_CONF_OFFSET, | |
380 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_name), | |
381 NULL }, | |
382 | |
383 { ngx_string("grpc_ssl_server_name"), | |
384 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
385 ngx_conf_set_flag_slot, | |
386 NGX_HTTP_LOC_CONF_OFFSET, | |
387 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_server_name), | |
388 NULL }, | |
389 | |
390 { ngx_string("grpc_ssl_verify"), | |
391 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
392 ngx_conf_set_flag_slot, | |
393 NGX_HTTP_LOC_CONF_OFFSET, | |
394 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_verify), | |
395 NULL }, | |
396 | |
397 { ngx_string("grpc_ssl_verify_depth"), | |
398 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
399 ngx_conf_set_num_slot, | |
400 NGX_HTTP_LOC_CONF_OFFSET, | |
401 offsetof(ngx_http_grpc_loc_conf_t, ssl_verify_depth), | |
402 NULL }, | |
403 | |
404 { ngx_string("grpc_ssl_trusted_certificate"), | |
405 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
406 ngx_conf_set_str_slot, | |
407 NGX_HTTP_LOC_CONF_OFFSET, | |
408 offsetof(ngx_http_grpc_loc_conf_t, ssl_trusted_certificate), | |
409 NULL }, | |
410 | |
411 { ngx_string("grpc_ssl_crl"), | |
412 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
413 ngx_conf_set_str_slot, | |
414 NGX_HTTP_LOC_CONF_OFFSET, | |
415 offsetof(ngx_http_grpc_loc_conf_t, ssl_crl), | |
416 NULL }, | |
417 | |
418 { ngx_string("grpc_ssl_certificate"), | |
419 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
420 ngx_conf_set_str_slot, | |
421 NGX_HTTP_LOC_CONF_OFFSET, | |
422 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate), | |
423 NULL }, | |
424 | |
425 { ngx_string("grpc_ssl_certificate_key"), | |
426 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
427 ngx_conf_set_str_slot, | |
428 NGX_HTTP_LOC_CONF_OFFSET, | |
429 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate_key), | |
430 NULL }, | |
431 | |
432 { ngx_string("grpc_ssl_password_file"), | |
433 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
434 ngx_http_grpc_ssl_password_file, | |
435 NGX_HTTP_LOC_CONF_OFFSET, | |
436 0, | |
437 NULL }, | |
438 | |
439 #endif | |
440 | |
441 ngx_null_command | |
442 }; | |
443 | |
444 | |
445 static ngx_http_module_t ngx_http_grpc_module_ctx = { | |
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446 ngx_http_grpc_add_variables, /* preconfiguration */ |
7233 | 447 NULL, /* postconfiguration */ |
448 | |
449 NULL, /* create main configuration */ | |
450 NULL, /* init main configuration */ | |
451 | |
452 NULL, /* create server configuration */ | |
453 NULL, /* merge server configuration */ | |
454 | |
455 ngx_http_grpc_create_loc_conf, /* create location configuration */ | |
456 ngx_http_grpc_merge_loc_conf /* merge location configuration */ | |
457 }; | |
458 | |
459 | |
460 ngx_module_t ngx_http_grpc_module = { | |
461 NGX_MODULE_V1, | |
462 &ngx_http_grpc_module_ctx, /* module context */ | |
463 ngx_http_grpc_commands, /* module directives */ | |
464 NGX_HTTP_MODULE, /* module type */ | |
465 NULL, /* init master */ | |
466 NULL, /* init module */ | |
467 NULL, /* init process */ | |
468 NULL, /* init thread */ | |
469 NULL, /* exit thread */ | |
470 NULL, /* exit process */ | |
471 NULL, /* exit master */ | |
472 NGX_MODULE_V1_PADDING | |
473 }; | |
474 | |
475 | |
476 static u_char ngx_http_grpc_connection_start[] = | |
477 "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" /* connection preface */ | |
478 | |
479 "\x00\x00\x12\x04\x00\x00\x00\x00\x00" /* settings frame */ | |
480 "\x00\x01\x00\x00\x00\x00" /* header table size */ | |
481 "\x00\x02\x00\x00\x00\x00" /* disable push */ | |
482 "\x00\x04\x7f\xff\xff\xff" /* initial window */ | |
483 | |
484 "\x00\x00\x04\x08\x00\x00\x00\x00\x00" /* window update frame */ | |
485 "\x7f\xff\x00\x00"; | |
486 | |
487 | |
488 static ngx_keyval_t ngx_http_grpc_headers[] = { | |
489 { ngx_string("Content-Length"), ngx_string("$content_length") }, | |
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490 { ngx_string("TE"), ngx_string("$grpc_internal_trailers") }, |
7233 | 491 { ngx_string("Host"), ngx_string("") }, |
492 { ngx_string("Connection"), ngx_string("") }, | |
493 { ngx_string("Transfer-Encoding"), ngx_string("") }, | |
494 { ngx_string("Keep-Alive"), ngx_string("") }, | |
495 { ngx_string("Expect"), ngx_string("") }, | |
496 { ngx_string("Upgrade"), ngx_string("") }, | |
497 { ngx_null_string, ngx_null_string } | |
498 }; | |
499 | |
500 | |
501 static ngx_str_t ngx_http_grpc_hide_headers[] = { | |
502 ngx_string("Date"), | |
503 ngx_string("Server"), | |
504 ngx_string("X-Accel-Expires"), | |
505 ngx_string("X-Accel-Redirect"), | |
506 ngx_string("X-Accel-Limit-Rate"), | |
507 ngx_string("X-Accel-Buffering"), | |
508 ngx_string("X-Accel-Charset"), | |
509 ngx_null_string | |
510 }; | |
511 | |
512 | |
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513 static ngx_http_variable_t ngx_http_grpc_vars[] = { |
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514 |
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515 { ngx_string("grpc_internal_trailers"), NULL, |
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516 ngx_http_grpc_internal_trailers_variable, 0, |
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517 NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, |
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518 |
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519 ngx_http_null_variable |
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520 }; |
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521 |
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522 |
7233 | 523 static ngx_int_t |
524 ngx_http_grpc_handler(ngx_http_request_t *r) | |
525 { | |
526 ngx_int_t rc; | |
527 ngx_http_upstream_t *u; | |
528 ngx_http_grpc_ctx_t *ctx; | |
529 ngx_http_grpc_loc_conf_t *glcf; | |
530 | |
531 if (ngx_http_upstream_create(r) != NGX_OK) { | |
532 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
533 } | |
534 | |
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535 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_grpc_ctx_t)); |
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536 if (ctx == NULL) { |
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537 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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538 } |
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539 |
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540 ctx->request = r; |
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541 |
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542 ngx_http_set_ctx(r, ctx, ngx_http_grpc_module); |
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543 |
7233 | 544 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); |
545 | |
546 u = r->upstream; | |
547 | |
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548 if (glcf->grpc_lengths == NULL) { |
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549 ctx->host = glcf->host; |
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550 |
7233 | 551 #if (NGX_HTTP_SSL) |
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552 u->ssl = (glcf->upstream.ssl != NULL); |
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553 |
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554 if (u->ssl) { |
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555 ngx_str_set(&u->schema, "grpcs://"); |
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556 |
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557 } else { |
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558 ngx_str_set(&u->schema, "grpc://"); |
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559 } |
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560 #else |
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561 ngx_str_set(&u->schema, "grpc://"); |
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562 #endif |
7233 | 563 |
564 } else { | |
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565 if (ngx_http_grpc_eval(r, ctx, glcf) != NGX_OK) { |
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566 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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567 } |
7233 | 568 } |
569 | |
570 u->output.tag = (ngx_buf_tag_t) &ngx_http_grpc_module; | |
571 | |
572 u->conf = &glcf->upstream; | |
573 | |
574 u->create_request = ngx_http_grpc_create_request; | |
575 u->reinit_request = ngx_http_grpc_reinit_request; | |
576 u->process_header = ngx_http_grpc_process_header; | |
577 u->abort_request = ngx_http_grpc_abort_request; | |
578 u->finalize_request = ngx_http_grpc_finalize_request; | |
579 | |
580 u->input_filter_init = ngx_http_grpc_filter_init; | |
581 u->input_filter = ngx_http_grpc_filter; | |
582 u->input_filter_ctx = ctx; | |
583 | |
584 r->request_body_no_buffering = 1; | |
585 | |
586 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init); | |
587 | |
588 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { | |
589 return rc; | |
590 } | |
591 | |
592 return NGX_DONE; | |
593 } | |
594 | |
595 | |
596 static ngx_int_t | |
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597 ngx_http_grpc_eval(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, |
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598 ngx_http_grpc_loc_conf_t *glcf) |
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599 { |
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600 size_t add; |
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601 ngx_url_t url; |
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602 ngx_http_upstream_t *u; |
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603 |
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604 ngx_memzero(&url, sizeof(ngx_url_t)); |
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605 |
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606 if (ngx_http_script_run(r, &url.url, glcf->grpc_lengths->elts, 0, |
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607 glcf->grpc_values->elts) |
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608 == NULL) |
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609 { |
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610 return NGX_ERROR; |
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611 } |
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612 |
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613 if (url.url.len > 7 |
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614 && ngx_strncasecmp(url.url.data, (u_char *) "grpc://", 7) == 0) |
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615 { |
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616 add = 7; |
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617 |
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618 } else if (url.url.len > 8 |
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619 && ngx_strncasecmp(url.url.data, (u_char *) "grpcs://", 8) == 0) |
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620 { |
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621 |
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622 #if (NGX_HTTP_SSL) |
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623 add = 8; |
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624 r->upstream->ssl = 1; |
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625 #else |
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626 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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627 "grpcs protocol requires SSL support"); |
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628 return NGX_ERROR; |
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629 #endif |
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630 |
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631 } else { |
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632 add = 0; |
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633 } |
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634 |
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635 u = r->upstream; |
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636 |
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637 if (add) { |
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638 u->schema.len = add; |
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639 u->schema.data = url.url.data; |
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640 |
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641 url.url.data += add; |
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642 url.url.len -= add; |
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643 |
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644 } else { |
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645 ngx_str_set(&u->schema, "grpc://"); |
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646 } |
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647 |
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648 url.no_resolve = 1; |
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649 |
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650 if (ngx_parse_url(r->pool, &url) != NGX_OK) { |
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651 if (url.err) { |
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652 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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653 "%s in upstream \"%V\"", url.err, &url.url); |
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654 } |
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655 |
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656 return NGX_ERROR; |
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657 } |
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658 |
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659 u->resolved = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_resolved_t)); |
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660 if (u->resolved == NULL) { |
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661 return NGX_ERROR; |
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662 } |
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663 |
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664 if (url.addrs) { |
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665 u->resolved->sockaddr = url.addrs[0].sockaddr; |
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666 u->resolved->socklen = url.addrs[0].socklen; |
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667 u->resolved->name = url.addrs[0].name; |
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668 u->resolved->naddrs = 1; |
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669 } |
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670 |
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671 u->resolved->host = url.host; |
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672 u->resolved->port = url.port; |
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673 u->resolved->no_port = url.no_port; |
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674 |
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675 if (url.family != AF_UNIX) { |
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676 |
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677 if (url.no_port) { |
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678 ctx->host = url.host; |
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679 |
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680 } else { |
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681 ctx->host.len = url.host.len + 1 + url.port_text.len; |
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682 ctx->host.data = url.host.data; |
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683 } |
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684 |
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685 } else { |
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686 ngx_str_set(&ctx->host, "localhost"); |
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687 } |
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688 |
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689 return NGX_OK; |
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690 } |
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691 |
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692 |
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693 static ngx_int_t |
7233 | 694 ngx_http_grpc_create_request(ngx_http_request_t *r) |
695 { | |
696 u_char *p, *tmp, *key_tmp, *val_tmp, *headers_frame; | |
697 size_t len, tmp_len, key_len, val_len, uri_len; | |
698 uintptr_t escape; | |
699 ngx_buf_t *b; | |
700 ngx_uint_t i, next; | |
701 ngx_chain_t *cl, *body; | |
702 ngx_list_part_t *part; | |
703 ngx_table_elt_t *header; | |
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704 ngx_http_grpc_ctx_t *ctx; |
7233 | 705 ngx_http_upstream_t *u; |
706 ngx_http_grpc_frame_t *f; | |
707 ngx_http_script_code_pt code; | |
708 ngx_http_grpc_loc_conf_t *glcf; | |
709 ngx_http_script_engine_t e, le; | |
710 ngx_http_script_len_code_pt lcode; | |
711 | |
712 u = r->upstream; | |
713 | |
714 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); | |
715 | |
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716 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); |
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717 |
7233 | 718 len = sizeof(ngx_http_grpc_connection_start) - 1 |
719 + sizeof(ngx_http_grpc_frame_t); /* headers frame */ | |
720 | |
721 /* :method header */ | |
722 | |
723 if (r->method == NGX_HTTP_GET || r->method == NGX_HTTP_POST) { | |
724 len += 1; | |
725 tmp_len = 0; | |
726 | |
727 } else { | |
728 len += 1 + NGX_HTTP_V2_INT_OCTETS + r->method_name.len; | |
729 tmp_len = r->method_name.len; | |
730 } | |
731 | |
732 /* :scheme header */ | |
733 | |
734 len += 1; | |
735 | |
736 /* :path header */ | |
737 | |
738 if (r->valid_unparsed_uri) { | |
739 escape = 0; | |
740 uri_len = r->unparsed_uri.len; | |
741 | |
742 } else { | |
743 escape = 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len, | |
744 NGX_ESCAPE_URI); | |
745 uri_len = r->uri.len + escape + sizeof("?") - 1 + r->args.len; | |
746 } | |
747 | |
748 len += 1 + NGX_HTTP_V2_INT_OCTETS + uri_len; | |
749 | |
750 if (tmp_len < uri_len) { | |
751 tmp_len = uri_len; | |
752 } | |
753 | |
754 /* :authority header */ | |
755 | |
756 if (!glcf->host_set) { | |
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757 len += 1 + NGX_HTTP_V2_INT_OCTETS + ctx->host.len; |
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758 |
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759 if (tmp_len < ctx->host.len) { |
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760 tmp_len = ctx->host.len; |
7233 | 761 } |
762 } | |
763 | |
764 /* other headers */ | |
765 | |
766 ngx_http_script_flush_no_cacheable_variables(r, glcf->headers.flushes); | |
767 ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); | |
768 | |
769 le.ip = glcf->headers.lengths->elts; | |
770 le.request = r; | |
771 le.flushed = 1; | |
772 | |
773 while (*(uintptr_t *) le.ip) { | |
774 | |
775 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
776 key_len = lcode(&le); | |
777 | |
778 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
779 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
780 } | |
781 le.ip += sizeof(uintptr_t); | |
782 | |
783 if (val_len == 0) { | |
784 continue; | |
785 } | |
786 | |
787 len += 1 + NGX_HTTP_V2_INT_OCTETS + key_len | |
788 + NGX_HTTP_V2_INT_OCTETS + val_len; | |
789 | |
790 if (tmp_len < key_len) { | |
791 tmp_len = key_len; | |
792 } | |
793 | |
794 if (tmp_len < val_len) { | |
795 tmp_len = val_len; | |
796 } | |
797 } | |
798 | |
799 if (glcf->upstream.pass_request_headers) { | |
800 part = &r->headers_in.headers.part; | |
801 header = part->elts; | |
802 | |
803 for (i = 0; /* void */; i++) { | |
804 | |
805 if (i >= part->nelts) { | |
806 if (part->next == NULL) { | |
807 break; | |
808 } | |
809 | |
810 part = part->next; | |
811 header = part->elts; | |
812 i = 0; | |
813 } | |
814 | |
815 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
816 header[i].lowcase_key, header[i].key.len)) | |
817 { | |
818 continue; | |
819 } | |
820 | |
821 len += 1 + NGX_HTTP_V2_INT_OCTETS + header[i].key.len | |
822 + NGX_HTTP_V2_INT_OCTETS + header[i].value.len; | |
823 | |
824 if (tmp_len < header[i].key.len) { | |
825 tmp_len = header[i].key.len; | |
826 } | |
827 | |
828 if (tmp_len < header[i].value.len) { | |
829 tmp_len = header[i].value.len; | |
830 } | |
831 } | |
832 } | |
833 | |
834 /* continuation frames */ | |
835 | |
836 len += sizeof(ngx_http_grpc_frame_t) | |
837 * (len / NGX_HTTP_V2_DEFAULT_FRAME_SIZE); | |
838 | |
839 | |
840 b = ngx_create_temp_buf(r->pool, len); | |
841 if (b == NULL) { | |
842 return NGX_ERROR; | |
843 } | |
844 | |
845 cl = ngx_alloc_chain_link(r->pool); | |
846 if (cl == NULL) { | |
847 return NGX_ERROR; | |
848 } | |
849 | |
850 cl->buf = b; | |
851 cl->next = NULL; | |
852 | |
853 tmp = ngx_palloc(r->pool, tmp_len * 3); | |
854 if (tmp == NULL) { | |
855 return NGX_ERROR; | |
856 } | |
857 | |
858 key_tmp = tmp + tmp_len; | |
859 val_tmp = tmp + 2 * tmp_len; | |
860 | |
861 /* connection preface */ | |
862 | |
863 b->last = ngx_copy(b->last, ngx_http_grpc_connection_start, | |
864 sizeof(ngx_http_grpc_connection_start) - 1); | |
865 | |
866 /* headers frame */ | |
867 | |
868 headers_frame = b->last; | |
869 | |
870 f = (ngx_http_grpc_frame_t *) b->last; | |
871 b->last += sizeof(ngx_http_grpc_frame_t); | |
872 | |
873 f->length_0 = 0; | |
874 f->length_1 = 0; | |
875 f->length_2 = 0; | |
876 f->type = NGX_HTTP_V2_HEADERS_FRAME; | |
877 f->flags = 0; | |
878 f->stream_id_0 = 0; | |
879 f->stream_id_1 = 0; | |
880 f->stream_id_2 = 0; | |
881 f->stream_id_3 = 1; | |
882 | |
883 if (r->method == NGX_HTTP_GET) { | |
884 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_GET_INDEX); | |
885 | |
886 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
887 "grpc header: \":method: GET\""); | |
888 | |
889 } else if (r->method == NGX_HTTP_POST) { | |
890 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_POST_INDEX); | |
891 | |
892 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
893 "grpc header: \":method: POST\""); | |
894 | |
895 } else { | |
896 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_METHOD_INDEX); | |
897 b->last = ngx_http_v2_write_value(b->last, r->method_name.data, | |
898 r->method_name.len, tmp); | |
899 | |
900 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
901 "grpc header: \":method: %V\"", &r->method_name); | |
902 } | |
903 | |
904 #if (NGX_HTTP_SSL) | |
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changeset
|
905 if (u->ssl) { |
7233 | 906 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTPS_INDEX); |
907 | |
908 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
909 "grpc header: \":scheme: https\""); | |
910 } else | |
911 #endif | |
912 { | |
913 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTP_INDEX); | |
914 | |
915 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
916 "grpc header: \":scheme: http\""); | |
917 } | |
918 | |
919 if (r->valid_unparsed_uri) { | |
920 | |
921 if (r->unparsed_uri.len == 1 && r->unparsed_uri.data[0] == '/') { | |
922 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_PATH_ROOT_INDEX); | |
923 | |
924 } else { | |
925 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
926 b->last = ngx_http_v2_write_value(b->last, r->unparsed_uri.data, | |
927 r->unparsed_uri.len, tmp); | |
928 } | |
929 | |
930 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
931 "grpc header: \":path: %V\"", &r->unparsed_uri); | |
932 | |
933 } else if (escape || r->args.len > 0) { | |
934 p = val_tmp; | |
935 | |
936 if (escape) { | |
937 p = (u_char *) ngx_escape_uri(p, r->uri.data, r->uri.len, | |
938 NGX_ESCAPE_URI); | |
939 | |
940 } else { | |
941 p = ngx_copy(p, r->uri.data, r->uri.len); | |
942 } | |
943 | |
944 if (r->args.len > 0) { | |
945 *p++ = '?'; | |
946 p = ngx_copy(p, r->args.data, r->args.len); | |
947 } | |
948 | |
949 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
950 b->last = ngx_http_v2_write_value(b->last, val_tmp, p - val_tmp, tmp); | |
951 | |
952 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
953 "grpc header: \":path: %*s\"", p - val_tmp, val_tmp); | |
954 | |
955 } else { | |
956 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
957 b->last = ngx_http_v2_write_value(b->last, r->uri.data, | |
958 r->uri.len, tmp); | |
959 | |
960 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
961 "grpc header: \":path: %V\"", &r->uri); | |
962 } | |
963 | |
964 if (!glcf->host_set) { | |
965 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_AUTHORITY_INDEX); | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
966 b->last = ngx_http_v2_write_value(b->last, ctx->host.data, |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
967 ctx->host.len, tmp); |
7233 | 968 |
969 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
970 "grpc header: \":authority: %V\"", &ctx->host); |
7233 | 971 } |
972 | |
973 ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); | |
974 | |
975 e.ip = glcf->headers.values->elts; | |
976 e.request = r; | |
977 e.flushed = 1; | |
978 | |
979 le.ip = glcf->headers.lengths->elts; | |
980 | |
981 while (*(uintptr_t *) le.ip) { | |
982 | |
983 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
984 key_len = lcode(&le); | |
985 | |
986 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
987 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
988 } | |
989 le.ip += sizeof(uintptr_t); | |
990 | |
991 if (val_len == 0) { | |
992 e.skip = 1; | |
993 | |
994 while (*(uintptr_t *) e.ip) { | |
995 code = *(ngx_http_script_code_pt *) e.ip; | |
996 code((ngx_http_script_engine_t *) &e); | |
997 } | |
998 e.ip += sizeof(uintptr_t); | |
999 | |
1000 e.skip = 0; | |
1001 | |
1002 continue; | |
1003 } | |
1004 | |
1005 *b->last++ = 0; | |
1006 | |
1007 e.pos = key_tmp; | |
1008 | |
1009 code = *(ngx_http_script_code_pt *) e.ip; | |
1010 code((ngx_http_script_engine_t *) &e); | |
1011 | |
1012 b->last = ngx_http_v2_write_name(b->last, key_tmp, key_len, tmp); | |
1013 | |
1014 e.pos = val_tmp; | |
1015 | |
1016 while (*(uintptr_t *) e.ip) { | |
1017 code = *(ngx_http_script_code_pt *) e.ip; | |
1018 code((ngx_http_script_engine_t *) &e); | |
1019 } | |
1020 e.ip += sizeof(uintptr_t); | |
1021 | |
1022 b->last = ngx_http_v2_write_value(b->last, val_tmp, val_len, tmp); | |
1023 | |
1024 #if (NGX_DEBUG) | |
1025 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
1026 ngx_strlow(key_tmp, key_tmp, key_len); | |
1027 | |
1028 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1029 "grpc header: \"%*s: %*s\"", | |
1030 key_len, key_tmp, val_len, val_tmp); | |
1031 } | |
1032 #endif | |
1033 } | |
1034 | |
1035 if (glcf->upstream.pass_request_headers) { | |
1036 part = &r->headers_in.headers.part; | |
1037 header = part->elts; | |
1038 | |
1039 for (i = 0; /* void */; i++) { | |
1040 | |
1041 if (i >= part->nelts) { | |
1042 if (part->next == NULL) { | |
1043 break; | |
1044 } | |
1045 | |
1046 part = part->next; | |
1047 header = part->elts; | |
1048 i = 0; | |
1049 } | |
1050 | |
1051 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
1052 header[i].lowcase_key, header[i].key.len)) | |
1053 { | |
1054 continue; | |
1055 } | |
1056 | |
1057 *b->last++ = 0; | |
1058 | |
1059 b->last = ngx_http_v2_write_name(b->last, header[i].key.data, | |
1060 header[i].key.len, tmp); | |
1061 | |
1062 b->last = ngx_http_v2_write_value(b->last, header[i].value.data, | |
1063 header[i].value.len, tmp); | |
1064 | |
1065 #if (NGX_DEBUG) | |
1066 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
1067 ngx_strlow(tmp, header[i].key.data, header[i].key.len); | |
1068 | |
1069 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1070 "grpc header: \"%*s: %V\"", | |
1071 header[i].key.len, tmp, &header[i].value); | |
1072 } | |
1073 #endif | |
1074 } | |
1075 } | |
1076 | |
1077 /* update headers frame length */ | |
1078 | |
1079 len = b->last - headers_frame - sizeof(ngx_http_grpc_frame_t); | |
1080 | |
1081 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
1082 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
1083 next = 1; | |
1084 | |
1085 } else { | |
1086 next = 0; | |
1087 } | |
1088 | |
1089 f = (ngx_http_grpc_frame_t *) headers_frame; | |
1090 | |
1091 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
1092 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
1093 f->length_2 = (u_char) (len & 0xff); | |
1094 | |
1095 /* create additional continuation frames */ | |
1096 | |
1097 p = headers_frame; | |
1098 | |
1099 while (next) { | |
1100 p += sizeof(ngx_http_grpc_frame_t) + NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
1101 len = b->last - p; | |
1102 | |
1103 ngx_memmove(p + sizeof(ngx_http_grpc_frame_t), p, len); | |
1104 b->last += sizeof(ngx_http_grpc_frame_t); | |
1105 | |
1106 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
1107 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
1108 next = 1; | |
1109 | |
1110 } else { | |
1111 next = 0; | |
1112 } | |
1113 | |
1114 f = (ngx_http_grpc_frame_t *) p; | |
1115 | |
1116 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
1117 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
1118 f->length_2 = (u_char) (len & 0xff); | |
1119 f->type = NGX_HTTP_V2_CONTINUATION_FRAME; | |
1120 f->flags = 0; | |
1121 f->stream_id_0 = 0; | |
1122 f->stream_id_1 = 0; | |
1123 f->stream_id_2 = 0; | |
1124 f->stream_id_3 = 1; | |
1125 } | |
1126 | |
1127 f->flags |= NGX_HTTP_V2_END_HEADERS_FLAG; | |
1128 | |
1129 #if (NGX_DEBUG) | |
1130 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
1131 u_char buf[512]; | |
1132 size_t n, m; | |
1133 | |
1134 n = ngx_min(b->last - b->pos, 256); | |
1135 m = ngx_hex_dump(buf, b->pos, n) - buf; | |
1136 | |
1137 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1138 "grpc header: %*s%s, len: %uz", | |
1139 m, buf, b->last - b->pos > 256 ? "..." : "", | |
1140 b->last - b->pos); | |
1141 } | |
1142 #endif | |
1143 | |
1144 if (r->request_body_no_buffering) { | |
1145 | |
1146 u->request_bufs = cl; | |
1147 | |
1148 } else { | |
1149 | |
1150 body = u->request_bufs; | |
1151 u->request_bufs = cl; | |
1152 | |
1153 if (body == NULL) { | |
1154 f = (ngx_http_grpc_frame_t *) headers_frame; | |
1155 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
1156 } | |
1157 | |
1158 while (body) { | |
1159 b = ngx_alloc_buf(r->pool); | |
1160 if (b == NULL) { | |
1161 return NGX_ERROR; | |
1162 } | |
1163 | |
1164 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t)); | |
1165 | |
1166 cl->next = ngx_alloc_chain_link(r->pool); | |
1167 if (cl->next == NULL) { | |
1168 return NGX_ERROR; | |
1169 } | |
1170 | |
1171 cl = cl->next; | |
1172 cl->buf = b; | |
1173 | |
1174 body = body->next; | |
1175 } | |
1176 | |
1177 b->last_buf = 1; | |
1178 } | |
1179 | |
1180 u->output.output_filter = ngx_http_grpc_body_output_filter; | |
1181 u->output.filter_ctx = r; | |
1182 | |
1183 b->flush = 1; | |
1184 cl->next = NULL; | |
1185 | |
1186 return NGX_OK; | |
1187 } | |
1188 | |
1189 | |
1190 static ngx_int_t | |
1191 ngx_http_grpc_reinit_request(ngx_http_request_t *r) | |
1192 { | |
1193 ngx_http_grpc_ctx_t *ctx; | |
1194 | |
1195 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
1196 | |
1197 if (ctx == NULL) { | |
1198 return NGX_OK; | |
1199 } | |
1200 | |
1201 ctx->state = 0; | |
1202 ctx->header_sent = 0; | |
1203 ctx->output_closed = 0; | |
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1204 ctx->output_blocked = 0; |
7233 | 1205 ctx->parsing_headers = 0; |
1206 ctx->end_stream = 0; | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1207 ctx->done = 0; |
7233 | 1208 ctx->status = 0; |
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
1209 ctx->rst = 0; |
7233 | 1210 ctx->connection = NULL; |
1211 | |
1212 return NGX_OK; | |
1213 } | |
1214 | |
1215 | |
1216 static ngx_int_t | |
1217 ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in) | |
1218 { | |
1219 ngx_http_request_t *r = data; | |
1220 | |
1221 off_t file_pos; | |
1222 u_char *p, *pos, *start; | |
1223 size_t len, limit; | |
1224 ngx_buf_t *b; | |
1225 ngx_int_t rc; | |
1226 ngx_uint_t next, last; | |
1227 ngx_chain_t *cl, *out, **ll; | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1228 ngx_http_upstream_t *u; |
7233 | 1229 ngx_http_grpc_ctx_t *ctx; |
1230 ngx_http_grpc_frame_t *f; | |
1231 | |
1232 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1233 "grpc output filter"); | |
1234 | |
1235 ctx = ngx_http_grpc_get_ctx(r); | |
1236 | |
1237 if (ctx == NULL) { | |
1238 return NGX_ERROR; | |
1239 } | |
1240 | |
1241 if (in) { | |
1242 if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) { | |
1243 return NGX_ERROR; | |
1244 } | |
1245 } | |
1246 | |
1247 out = NULL; | |
1248 ll = &out; | |
1249 | |
1250 if (!ctx->header_sent) { | |
1251 /* first buffer contains headers */ | |
1252 | |
1253 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1254 "grpc output header"); | |
1255 | |
1256 ctx->header_sent = 1; | |
1257 | |
1258 if (ctx->id != 1) { | |
1259 /* | |
1260 * keepalive connection: skip connection preface, | |
1261 * update stream identifiers | |
1262 */ | |
1263 | |
1264 b = ctx->in->buf; | |
1265 b->pos += sizeof(ngx_http_grpc_connection_start) - 1; | |
1266 | |
1267 p = b->pos; | |
1268 | |
1269 while (p < b->last) { | |
1270 f = (ngx_http_grpc_frame_t *) p; | |
1271 p += sizeof(ngx_http_grpc_frame_t); | |
1272 | |
1273 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
1274 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
1275 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
1276 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
1277 | |
1278 p += (f->length_0 << 16) + (f->length_1 << 8) + f->length_2; | |
1279 } | |
1280 } | |
1281 | |
1282 if (ctx->in->buf->last_buf) { | |
1283 ctx->output_closed = 1; | |
1284 } | |
1285 | |
1286 *ll = ctx->in; | |
1287 ll = &ctx->in->next; | |
1288 | |
1289 ctx->in = ctx->in->next; | |
1290 } | |
1291 | |
1292 if (ctx->out) { | |
1293 /* queued control frames */ | |
1294 | |
1295 *ll = ctx->out; | |
1296 | |
1297 for (cl = ctx->out, ll = &cl->next; cl; cl = cl->next) { | |
1298 ll = &cl->next; | |
1299 } | |
1300 | |
1301 ctx->out = NULL; | |
1302 } | |
1303 | |
1304 f = NULL; | |
1305 last = 0; | |
1306 | |
1307 limit = ngx_max(0, ctx->send_window); | |
1308 | |
1309 if (limit > ctx->connection->send_window) { | |
1310 limit = ctx->connection->send_window; | |
1311 } | |
1312 | |
1313 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1314 "grpc output limit: %uz w:%z:%uz", | |
1315 limit, ctx->send_window, ctx->connection->send_window); | |
1316 | |
1317 #if (NGX_SUPPRESS_WARN) | |
1318 file_pos = 0; | |
1319 pos = NULL; | |
1320 cl = NULL; | |
1321 #endif | |
1322 | |
1323 in = ctx->in; | |
1324 | |
1325 while (in && limit > 0) { | |
1326 | |
1327 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
1328 "grpc output in l:%d f:%d %p, pos %p, size: %z " | |
1329 "file: %O, size: %O", | |
1330 in->buf->last_buf, | |
1331 in->buf->in_file, | |
1332 in->buf->start, in->buf->pos, | |
1333 in->buf->last - in->buf->pos, | |
1334 in->buf->file_pos, | |
1335 in->buf->file_last - in->buf->file_pos); | |
1336 | |
1337 if (ngx_buf_special(in->buf)) { | |
1338 goto next; | |
1339 } | |
1340 | |
1341 if (in->buf->in_file) { | |
1342 file_pos = in->buf->file_pos; | |
1343 | |
1344 } else { | |
1345 pos = in->buf->pos; | |
1346 } | |
1347 | |
1348 next = 0; | |
1349 | |
1350 do { | |
1351 | |
1352 cl = ngx_http_grpc_get_buf(r, ctx); | |
1353 if (cl == NULL) { | |
1354 return NGX_ERROR; | |
1355 } | |
1356 | |
1357 b = cl->buf; | |
1358 | |
1359 f = (ngx_http_grpc_frame_t *) b->last; | |
1360 b->last += sizeof(ngx_http_grpc_frame_t); | |
1361 | |
1362 *ll = cl; | |
1363 ll = &cl->next; | |
1364 | |
1365 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
1366 if (cl == NULL) { | |
1367 return NGX_ERROR; | |
1368 } | |
1369 | |
1370 b = cl->buf; | |
1371 start = b->start; | |
1372 | |
1373 ngx_memcpy(b, in->buf, sizeof(ngx_buf_t)); | |
1374 | |
1375 /* | |
1376 * restore b->start to preserve memory allocated in the buffer, | |
1377 * to reuse it later for headers and control frames | |
1378 */ | |
1379 | |
1380 b->start = start; | |
1381 | |
1382 if (in->buf->in_file) { | |
1383 b->file_pos = file_pos; | |
1384 file_pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
1385 | |
1386 if (file_pos >= in->buf->file_last) { | |
1387 file_pos = in->buf->file_last; | |
1388 next = 1; | |
1389 } | |
1390 | |
1391 b->file_last = file_pos; | |
1392 len = (ngx_uint_t) (file_pos - b->file_pos); | |
1393 | |
1394 } else { | |
1395 b->pos = pos; | |
1396 pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
1397 | |
1398 if (pos >= in->buf->last) { | |
1399 pos = in->buf->last; | |
1400 next = 1; | |
1401 } | |
1402 | |
1403 b->last = pos; | |
1404 len = (ngx_uint_t) (pos - b->pos); | |
1405 } | |
1406 | |
1407 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; | |
1408 b->shadow = in->buf; | |
1409 b->last_shadow = next; | |
1410 | |
1411 b->last_buf = 0; | |
1412 b->last_in_chain = 0; | |
1413 | |
1414 *ll = cl; | |
1415 ll = &cl->next; | |
1416 | |
1417 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
1418 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
1419 f->length_2 = (u_char) (len & 0xff); | |
1420 f->type = NGX_HTTP_V2_DATA_FRAME; | |
1421 f->flags = 0; | |
1422 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
1423 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
1424 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
1425 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
1426 | |
1427 limit -= len; | |
1428 ctx->send_window -= len; | |
1429 ctx->connection->send_window -= len; | |
1430 | |
1431 } while (!next && limit > 0); | |
1432 | |
1433 if (!next) { | |
1434 /* | |
1435 * if the buffer wasn't fully sent due to flow control limits, | |
1436 * preserve position for future use | |
1437 */ | |
1438 | |
1439 if (in->buf->in_file) { | |
1440 in->buf->file_pos = file_pos; | |
1441 | |
1442 } else { | |
1443 in->buf->pos = pos; | |
1444 } | |
1445 | |
1446 break; | |
1447 } | |
1448 | |
1449 next: | |
1450 | |
1451 if (in->buf->last_buf) { | |
1452 last = 1; | |
1453 } | |
1454 | |
1455 in = in->next; | |
1456 } | |
1457 | |
1458 ctx->in = in; | |
1459 | |
1460 if (last) { | |
1461 | |
1462 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1463 "grpc output last"); | |
1464 | |
1465 ctx->output_closed = 1; | |
1466 | |
1467 if (f) { | |
1468 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
1469 | |
1470 } else { | |
1471 cl = ngx_http_grpc_get_buf(r, ctx); | |
1472 if (cl == NULL) { | |
1473 return NGX_ERROR; | |
1474 } | |
1475 | |
1476 b = cl->buf; | |
1477 | |
1478 f = (ngx_http_grpc_frame_t *) b->last; | |
1479 b->last += sizeof(ngx_http_grpc_frame_t); | |
1480 | |
1481 f->length_0 = 0; | |
1482 f->length_1 = 0; | |
1483 f->length_2 = 0; | |
1484 f->type = NGX_HTTP_V2_DATA_FRAME; | |
1485 f->flags = NGX_HTTP_V2_END_STREAM_FLAG; | |
1486 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
1487 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
1488 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
1489 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
1490 | |
1491 *ll = cl; | |
1492 ll = &cl->next; | |
1493 } | |
1494 | |
1495 cl->buf->last_buf = 1; | |
1496 } | |
1497 | |
1498 *ll = NULL; | |
1499 | |
1500 #if (NGX_DEBUG) | |
1501 | |
1502 for (cl = out; cl; cl = cl->next) { | |
1503 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
1504 "grpc output out l:%d f:%d %p, pos %p, size: %z " | |
1505 "file: %O, size: %O", | |
1506 cl->buf->last_buf, | |
1507 cl->buf->in_file, | |
1508 cl->buf->start, cl->buf->pos, | |
1509 cl->buf->last - cl->buf->pos, | |
1510 cl->buf->file_pos, | |
1511 cl->buf->file_last - cl->buf->file_pos); | |
1512 } | |
1513 | |
1514 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1515 "grpc output limit: %uz w:%z:%uz", | |
1516 limit, ctx->send_window, ctx->connection->send_window); | |
1517 | |
1518 #endif | |
1519 | |
1520 rc = ngx_chain_writer(&r->upstream->writer, out); | |
1521 | |
1522 ngx_chain_update_chains(r->pool, &ctx->free, &ctx->busy, &out, | |
1523 (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter); | |
1524 | |
1525 for (cl = ctx->free; cl; cl = cl->next) { | |
1526 | |
1527 /* mark original buffers as sent */ | |
1528 | |
1529 if (cl->buf->shadow) { | |
1530 if (cl->buf->last_shadow) { | |
1531 b = cl->buf->shadow; | |
1532 b->pos = b->last; | |
1533 } | |
1534 | |
1535 cl->buf->shadow = NULL; | |
1536 } | |
1537 } | |
1538 | |
1539 if (rc == NGX_OK && ctx->in) { | |
1540 rc = NGX_AGAIN; | |
1541 } | |
1542 | |
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1543 if (rc == NGX_AGAIN) { |
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1544 ctx->output_blocked = 1; |
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1545 |
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1546 } else { |
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1547 ctx->output_blocked = 0; |
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1548 } |
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1549 |
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1550 if (ctx->done) { |
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1551 |
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1552 /* |
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1553 * We have already got the response and were sending some additional |
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1554 * control frames. Even if there is still something unsent, stop |
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1555 * here anyway. |
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1556 */ |
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1557 |
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1558 u = r->upstream; |
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1559 u->length = 0; |
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1560 |
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1561 if (ctx->in == NULL |
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1562 && ctx->out == NULL |
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1563 && ctx->output_closed |
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1564 && !ctx->output_blocked |
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1565 && ctx->state == ngx_http_grpc_st_start) |
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1566 { |
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1567 u->keepalive = 1; |
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1568 } |
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1569 |
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1570 ngx_post_event(u->peer.connection->read, &ngx_posted_events); |
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1571 } |
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1572 |
7233 | 1573 return rc; |
1574 } | |
1575 | |
1576 | |
1577 static ngx_int_t | |
1578 ngx_http_grpc_process_header(ngx_http_request_t *r) | |
1579 { | |
1580 ngx_str_t *status_line; | |
1581 ngx_int_t rc, status; | |
1582 ngx_buf_t *b; | |
1583 ngx_table_elt_t *h; | |
1584 ngx_http_upstream_t *u; | |
1585 ngx_http_grpc_ctx_t *ctx; | |
1586 ngx_http_upstream_header_t *hh; | |
1587 ngx_http_upstream_main_conf_t *umcf; | |
1588 | |
1589 u = r->upstream; | |
1590 b = &u->buffer; | |
1591 | |
1592 #if (NGX_DEBUG) | |
1593 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
1594 u_char buf[512]; | |
1595 size_t n, m; | |
1596 | |
1597 n = ngx_min(b->last - b->pos, 256); | |
1598 m = ngx_hex_dump(buf, b->pos, n) - buf; | |
1599 | |
1600 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1601 "grpc response: %*s%s, len: %uz", | |
1602 m, buf, b->last - b->pos > 256 ? "..." : "", | |
1603 b->last - b->pos); | |
1604 } | |
1605 #endif | |
1606 | |
1607 ctx = ngx_http_grpc_get_ctx(r); | |
1608 | |
1609 if (ctx == NULL) { | |
1610 return NGX_ERROR; | |
1611 } | |
1612 | |
1613 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); | |
1614 | |
1615 for ( ;; ) { | |
1616 | |
1617 if (ctx->state < ngx_http_grpc_st_payload) { | |
1618 | |
1619 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
1620 | |
1621 if (rc == NGX_AGAIN) { | |
1622 | |
1623 /* | |
1624 * there can be a lot of window update frames, | |
1625 * so we reset buffer if it is empty and we haven't | |
1626 * started parsing headers yet | |
1627 */ | |
1628 | |
1629 if (!ctx->parsing_headers) { | |
1630 b->pos = b->start; | |
1631 b->last = b->pos; | |
1632 } | |
1633 | |
1634 return NGX_AGAIN; | |
1635 } | |
1636 | |
1637 if (rc == NGX_ERROR) { | |
1638 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1639 } | |
1640 | |
1641 /* | |
1642 * RFC 7540 says that implementations MUST discard frames | |
1643 * that have unknown or unsupported types. However, extension | |
1644 * frames that appear in the middle of a header block are | |
1645 * not permitted. Also, for obvious reasons CONTINUATION frames | |
1646 * cannot appear before headers, and DATA frames are not expected | |
1647 * to appear before all headers are parsed. | |
1648 */ | |
1649 | |
1650 if (ctx->type == NGX_HTTP_V2_DATA_FRAME | |
1651 || (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
1652 && !ctx->parsing_headers) | |
1653 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
1654 && ctx->parsing_headers)) | |
1655 { | |
1656 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1657 "upstream sent unexpected http2 frame: %d", | |
1658 ctx->type); | |
1659 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1660 } | |
1661 | |
1662 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
1663 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1664 "upstream sent frame for unknown stream %ui", | |
1665 ctx->stream_id); | |
1666 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1667 } | |
1668 } | |
1669 | |
1670 /* frame payload */ | |
1671 | |
1672 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
1673 | |
1674 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
1675 | |
1676 if (rc == NGX_AGAIN) { | |
1677 return NGX_AGAIN; | |
1678 } | |
1679 | |
1680 if (rc == NGX_ERROR) { | |
1681 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1682 } | |
1683 | |
1684 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1685 "upstream rejected request with error %ui", | |
1686 ctx->error); | |
1687 | |
1688 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1689 } | |
1690 | |
1691 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
1692 | |
1693 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
1694 | |
1695 if (rc == NGX_AGAIN) { | |
1696 return NGX_AGAIN; | |
1697 } | |
1698 | |
1699 if (rc == NGX_ERROR) { | |
1700 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1701 } | |
1702 | |
1703 /* | |
1704 * If stream_id is lower than one we use, our | |
1705 * request won't be processed and needs to be retried. | |
1706 * If stream_id is greater or equal to the one we use, | |
1707 * we can continue normally (except we can't use this | |
1708 * connection for additional requests). If there is | |
1709 * a real error, the connection will be closed. | |
1710 */ | |
1711 | |
1712 if (ctx->stream_id < ctx->id) { | |
1713 | |
1714 /* TODO: we can retry non-idempotent requests */ | |
1715 | |
1716 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1717 "upstream sent goaway with error %ui", | |
1718 ctx->error); | |
1719 | |
1720 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1721 } | |
1722 | |
1723 continue; | |
1724 } | |
1725 | |
1726 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
1727 | |
1728 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
1729 | |
1730 if (rc == NGX_AGAIN) { | |
1731 return NGX_AGAIN; | |
1732 } | |
1733 | |
1734 if (rc == NGX_ERROR) { | |
1735 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1736 } | |
1737 | |
1738 if (ctx->in) { | |
1739 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
1740 } | |
1741 | |
1742 continue; | |
1743 } | |
1744 | |
1745 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
1746 | |
1747 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
1748 | |
1749 if (rc == NGX_AGAIN) { | |
1750 return NGX_AGAIN; | |
1751 } | |
1752 | |
1753 if (rc == NGX_ERROR) { | |
1754 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1755 } | |
1756 | |
1757 if (ctx->in) { | |
1758 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
1759 } | |
1760 | |
1761 continue; | |
1762 } | |
1763 | |
1764 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
1765 | |
1766 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
1767 | |
1768 if (rc == NGX_AGAIN) { | |
1769 return NGX_AGAIN; | |
1770 } | |
1771 | |
1772 if (rc == NGX_ERROR) { | |
1773 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1774 } | |
1775 | |
1776 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
1777 continue; | |
1778 } | |
1779 | |
1780 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
1781 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1782 "upstream sent unexpected push promise frame"); | |
1783 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1784 } | |
1785 | |
1786 if (ctx->type != NGX_HTTP_V2_HEADERS_FRAME | |
1787 && ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME) | |
1788 { | |
1789 /* priority, unknown frames */ | |
1790 | |
1791 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
1792 ctx->rest -= b->last - b->pos; | |
1793 b->pos = b->last; | |
1794 return NGX_AGAIN; | |
1795 } | |
1796 | |
1797 b->pos += ctx->rest; | |
1798 ctx->rest = 0; | |
1799 ctx->state = ngx_http_grpc_st_start; | |
1800 | |
1801 continue; | |
1802 } | |
1803 | |
1804 /* headers */ | |
1805 | |
1806 for ( ;; ) { | |
1807 | |
1808 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
1809 | |
1810 if (rc == NGX_AGAIN) { | |
1811 break; | |
1812 } | |
1813 | |
1814 if (rc == NGX_OK) { | |
1815 | |
1816 /* a header line has been parsed successfully */ | |
1817 | |
1818 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1819 "grpc header: \"%V: %V\"", | |
1820 &ctx->name, &ctx->value); | |
1821 | |
1822 if (ctx->name.len && ctx->name.data[0] == ':') { | |
1823 | |
1824 if (ctx->name.len != sizeof(":status") - 1 | |
1825 || ngx_strncmp(ctx->name.data, ":status", | |
1826 sizeof(":status") - 1) | |
1827 != 0) | |
1828 { | |
1829 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1830 "upstream sent invalid header \"%V: %V\"", | |
1831 &ctx->name, &ctx->value); | |
1832 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1833 } | |
1834 | |
1835 if (ctx->status) { | |
1836 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1837 "upstream sent duplicate :status header"); | |
1838 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1839 } | |
1840 | |
1841 status_line = &ctx->value; | |
1842 | |
1843 if (status_line->len != 3) { | |
1844 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1845 "upstream sent invalid :status \"%V\"", | |
1846 status_line); | |
1847 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1848 } | |
1849 | |
1850 status = ngx_atoi(status_line->data, 3); | |
1851 | |
1852 if (status == NGX_ERROR) { | |
1853 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1854 "upstream sent invalid :status \"%V\"", | |
1855 status_line); | |
1856 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1857 } | |
1858 | |
1859 if (status < NGX_HTTP_OK) { | |
1860 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1861 "upstream sent unexpected :status \"%V\"", | |
1862 status_line); | |
1863 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1864 } | |
1865 | |
1866 u->headers_in.status_n = status; | |
1867 | |
1868 if (u->state && u->state->status == 0) { | |
1869 u->state->status = status; | |
1870 } | |
1871 | |
1872 ctx->status = 1; | |
1873 | |
1874 continue; | |
1875 | |
1876 } else if (!ctx->status) { | |
1877 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1878 "upstream sent no :status header"); | |
1879 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1880 } | |
1881 | |
1882 h = ngx_list_push(&u->headers_in.headers); | |
1883 if (h == NULL) { | |
1884 return NGX_ERROR; | |
1885 } | |
1886 | |
1887 h->key = ctx->name; | |
1888 h->value = ctx->value; | |
1889 h->lowcase_key = h->key.data; | |
1890 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
1891 | |
1892 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash, | |
1893 h->lowcase_key, h->key.len); | |
1894 | |
1895 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) { | |
1896 return NGX_ERROR; | |
1897 } | |
1898 | |
1899 continue; | |
1900 } | |
1901 | |
1902 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
1903 | |
1904 /* a whole header has been parsed successfully */ | |
1905 | |
1906 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1907 "grpc header done"); | |
1908 | |
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1909 if (ctx->end_stream) { |
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1910 u->headers_in.content_length_n = 0; |
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1911 |
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1912 if (ctx->in == NULL |
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1913 && ctx->out == NULL |
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1914 && ctx->output_closed |
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1915 && !ctx->output_blocked |
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1916 && b->last == b->pos) |
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1917 { |
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1918 u->keepalive = 1; |
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1919 } |
7233 | 1920 } |
1921 | |
1922 return NGX_OK; | |
1923 } | |
1924 | |
1925 /* there was error while a header line parsing */ | |
1926 | |
1927 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1928 "upstream sent invalid header"); | |
1929 | |
1930 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1931 } | |
1932 | |
1933 /* rc == NGX_AGAIN */ | |
1934 | |
1935 if (ctx->rest == 0) { | |
1936 ctx->state = ngx_http_grpc_st_start; | |
1937 continue; | |
1938 } | |
1939 | |
1940 return NGX_AGAIN; | |
1941 } | |
1942 } | |
1943 | |
1944 | |
1945 static ngx_int_t | |
1946 ngx_http_grpc_filter_init(void *data) | |
1947 { | |
1948 ngx_http_grpc_ctx_t *ctx = data; | |
1949 | |
1950 ngx_http_request_t *r; | |
1951 ngx_http_upstream_t *u; | |
1952 | |
1953 r = ctx->request; | |
1954 u = r->upstream; | |
1955 | |
1956 u->length = 1; | |
1957 | |
1958 if (ctx->end_stream) { | |
1959 u->length = 0; | |
1960 } | |
1961 | |
1962 return NGX_OK; | |
1963 } | |
1964 | |
1965 | |
1966 static ngx_int_t | |
1967 ngx_http_grpc_filter(void *data, ssize_t bytes) | |
1968 { | |
1969 ngx_http_grpc_ctx_t *ctx = data; | |
1970 | |
1971 ngx_int_t rc; | |
1972 ngx_buf_t *b, *buf; | |
1973 ngx_chain_t *cl, **ll; | |
1974 ngx_table_elt_t *h; | |
1975 ngx_http_request_t *r; | |
1976 ngx_http_upstream_t *u; | |
1977 | |
1978 r = ctx->request; | |
1979 u = r->upstream; | |
1980 b = &u->buffer; | |
1981 | |
1982 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1983 "grpc filter bytes:%z", bytes); | |
1984 | |
1985 b->pos = b->last; | |
1986 b->last += bytes; | |
1987 | |
1988 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
1989 ll = &cl->next; | |
1990 } | |
1991 | |
1992 for ( ;; ) { | |
1993 | |
1994 if (ctx->state < ngx_http_grpc_st_payload) { | |
1995 | |
1996 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
1997 | |
1998 if (rc == NGX_AGAIN) { | |
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1999 |
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2000 if (ctx->done) { |
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2001 |
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2002 /* |
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2003 * We have finished parsing the response and the |
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2004 * remaining control frames. If there are unsent |
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2005 * control frames, post a write event to send them. |
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2006 */ |
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2007 |
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2008 if (ctx->out) { |
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2009 ngx_post_event(u->peer.connection->write, |
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2010 &ngx_posted_events); |
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2011 return NGX_AGAIN; |
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2012 } |
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2013 |
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2014 u->length = 0; |
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|
2015 |
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2016 if (ctx->in == NULL |
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|
2017 && ctx->output_closed |
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2018 && !ctx->output_blocked |
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2019 && ctx->state == ngx_http_grpc_st_start) |
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2020 { |
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2021 u->keepalive = 1; |
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2022 } |
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2023 |
f6047a579ca1
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2024 break; |
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|
2025 } |
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2026 |
7233 | 2027 return NGX_AGAIN; |
2028 } | |
2029 | |
2030 if (rc == NGX_ERROR) { | |
2031 return NGX_ERROR; | |
2032 } | |
2033 | |
2034 if ((ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
2035 && !ctx->parsing_headers) | |
2036 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
2037 && ctx->parsing_headers)) | |
2038 { | |
2039 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2040 "upstream sent unexpected http2 frame: %d", | |
2041 ctx->type); | |
2042 return NGX_ERROR; | |
2043 } | |
2044 | |
2045 if (ctx->type == NGX_HTTP_V2_DATA_FRAME) { | |
2046 | |
2047 if (ctx->stream_id != ctx->id) { | |
2048 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2049 "upstream sent data frame " | |
2050 "for unknown stream %ui", | |
2051 ctx->stream_id); | |
2052 return NGX_ERROR; | |
2053 } | |
2054 | |
2055 if (ctx->rest > ctx->recv_window) { | |
2056 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2057 "upstream violated stream flow control, " | |
2058 "received %uz data frame with window %uz", | |
2059 ctx->rest, ctx->recv_window); | |
2060 return NGX_ERROR; | |
2061 } | |
2062 | |
2063 if (ctx->rest > ctx->connection->recv_window) { | |
2064 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2065 "upstream violated connection flow control, " | |
2066 "received %uz data frame with window %uz", | |
2067 ctx->rest, ctx->connection->recv_window); | |
2068 return NGX_ERROR; | |
2069 } | |
2070 | |
2071 ctx->recv_window -= ctx->rest; | |
2072 ctx->connection->recv_window -= ctx->rest; | |
2073 | |
2074 if (ctx->connection->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4 | |
2075 || ctx->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4) | |
2076 { | |
2077 if (ngx_http_grpc_send_window_update(r, ctx) != NGX_OK) { | |
2078 return NGX_ERROR; | |
2079 } | |
2080 | |
2081 ngx_post_event(u->peer.connection->write, | |
2082 &ngx_posted_events); | |
2083 } | |
2084 } | |
2085 | |
2086 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
2087 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2088 "upstream sent frame for unknown stream %ui", | |
2089 ctx->stream_id); | |
2090 return NGX_ERROR; | |
2091 } | |
2092 | |
7646
2096b21fcd10
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|
2093 if (ctx->stream_id && ctx->done |
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|
2094 && ctx->type != NGX_HTTP_V2_RST_STREAM_FRAME) |
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|
2095 { |
7349
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|
2096 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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|
2097 "upstream sent frame for closed stream %ui", |
f6047a579ca1
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|
2098 ctx->stream_id); |
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|
2099 return NGX_ERROR; |
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|
2100 } |
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|
2101 |
7233 | 2102 ctx->padding = 0; |
2103 } | |
2104 | |
2105 if (ctx->state == ngx_http_grpc_st_padding) { | |
2106 | |
2107 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
2108 ctx->rest -= b->last - b->pos; | |
2109 b->pos = b->last; | |
2110 return NGX_AGAIN; | |
2111 } | |
2112 | |
2113 b->pos += ctx->rest; | |
2114 ctx->rest = 0; | |
2115 ctx->state = ngx_http_grpc_st_start; | |
2116 | |
2117 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
7349
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|
2118 ctx->done = 1; |
7233 | 2119 } |
2120 | |
2121 continue; | |
2122 } | |
2123 | |
2124 /* frame payload */ | |
2125 | |
2126 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
2127 | |
2128 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
2129 | |
2130 if (rc == NGX_AGAIN) { | |
2131 return NGX_AGAIN; | |
2132 } | |
2133 | |
2134 if (rc == NGX_ERROR) { | |
2135 return NGX_ERROR; | |
2136 } | |
2137 | |
7646
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Ruslan Ermilov <ru@nginx.com>
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|
2138 if (ctx->error || !ctx->done) { |
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|
2139 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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|
2140 "upstream rejected request with error %ui", |
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|
2141 ctx->error); |
2096b21fcd10
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|
2142 return NGX_ERROR; |
2096b21fcd10
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|
2143 } |
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|
2144 |
2096b21fcd10
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diff
changeset
|
2145 if (ctx->rst) { |
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|
2146 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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diff
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|
2147 "upstream sent frame for closed stream %ui", |
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|
2148 ctx->stream_id); |
2096b21fcd10
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|
2149 return NGX_ERROR; |
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|
2150 } |
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2151 |
2096b21fcd10
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|
2152 ctx->rst = 1; |
7233 | 2153 } |
2154 | |
2155 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
2156 | |
2157 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
2158 | |
2159 if (rc == NGX_AGAIN) { | |
2160 return NGX_AGAIN; | |
2161 } | |
2162 | |
2163 if (rc == NGX_ERROR) { | |
2164 return NGX_ERROR; | |
2165 } | |
2166 | |
2167 /* | |
2168 * If stream_id is lower than one we use, our | |
2169 * request won't be processed and needs to be retried. | |
2170 * If stream_id is greater or equal to the one we use, | |
2171 * we can continue normally (except we can't use this | |
2172 * connection for additional requests). If there is | |
2173 * a real error, the connection will be closed. | |
2174 */ | |
2175 | |
2176 if (ctx->stream_id < ctx->id) { | |
2177 | |
2178 /* TODO: we can retry non-idempotent requests */ | |
2179 | |
2180 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2181 "upstream sent goaway with error %ui", | |
2182 ctx->error); | |
2183 | |
2184 return NGX_ERROR; | |
2185 } | |
2186 | |
2187 continue; | |
2188 } | |
2189 | |
2190 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
2191 | |
2192 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
2193 | |
2194 if (rc == NGX_AGAIN) { | |
2195 return NGX_AGAIN; | |
2196 } | |
2197 | |
2198 if (rc == NGX_ERROR) { | |
2199 return NGX_ERROR; | |
2200 } | |
2201 | |
2202 if (ctx->in) { | |
2203 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
2204 } | |
2205 | |
2206 continue; | |
2207 } | |
2208 | |
2209 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
2210 | |
2211 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
2212 | |
2213 if (rc == NGX_AGAIN) { | |
2214 return NGX_AGAIN; | |
2215 } | |
2216 | |
2217 if (rc == NGX_ERROR) { | |
2218 return NGX_ERROR; | |
2219 } | |
2220 | |
2221 if (ctx->in) { | |
2222 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
2223 } | |
2224 | |
2225 continue; | |
2226 } | |
2227 | |
2228 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
2229 | |
2230 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
2231 | |
2232 if (rc == NGX_AGAIN) { | |
2233 return NGX_AGAIN; | |
2234 } | |
2235 | |
2236 if (rc == NGX_ERROR) { | |
2237 return NGX_ERROR; | |
2238 } | |
2239 | |
2240 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
2241 continue; | |
2242 } | |
2243 | |
2244 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
2245 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2246 "upstream sent unexpected push promise frame"); | |
2247 return NGX_ERROR; | |
2248 } | |
2249 | |
2250 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME | |
2251 || ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) | |
2252 { | |
2253 for ( ;; ) { | |
2254 | |
2255 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
2256 | |
2257 if (rc == NGX_AGAIN) { | |
2258 break; | |
2259 } | |
2260 | |
2261 if (rc == NGX_OK) { | |
2262 | |
2263 /* a header line has been parsed successfully */ | |
2264 | |
2265 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2266 "grpc trailer: \"%V: %V\"", | |
2267 &ctx->name, &ctx->value); | |
2268 | |
2269 if (ctx->name.len && ctx->name.data[0] == ':') { | |
2270 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2271 "upstream sent invalid " | |
2272 "trailer \"%V: %V\"", | |
2273 &ctx->name, &ctx->value); | |
2274 return NGX_ERROR; | |
2275 } | |
2276 | |
2277 h = ngx_list_push(&u->headers_in.trailers); | |
2278 if (h == NULL) { | |
2279 return NGX_ERROR; | |
2280 } | |
2281 | |
2282 h->key = ctx->name; | |
2283 h->value = ctx->value; | |
2284 h->lowcase_key = h->key.data; | |
2285 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
2286 | |
2287 continue; | |
2288 } | |
2289 | |
2290 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
2291 | |
2292 /* a whole header has been parsed successfully */ | |
2293 | |
2294 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2295 "grpc trailer done"); | |
2296 | |
2297 if (ctx->end_stream) { | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2298 ctx->done = 1; |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2299 break; |
7233 | 2300 } |
2301 | |
2302 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2303 "upstream sent trailer without " | |
2304 "end stream flag"); | |
2305 return NGX_ERROR; | |
2306 } | |
2307 | |
2308 /* there was error while a header line parsing */ | |
2309 | |
2310 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2311 "upstream sent invalid trailer"); | |
2312 | |
2313 return NGX_ERROR; | |
2314 } | |
2315 | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2316 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2317 continue; |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2318 } |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2319 |
7233 | 2320 /* rc == NGX_AGAIN */ |
2321 | |
2322 if (ctx->rest == 0) { | |
2323 ctx->state = ngx_http_grpc_st_start; | |
2324 continue; | |
2325 } | |
2326 | |
2327 return NGX_AGAIN; | |
2328 } | |
2329 | |
2330 if (ctx->type != NGX_HTTP_V2_DATA_FRAME) { | |
2331 | |
2332 /* priority, unknown frames */ | |
2333 | |
2334 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
2335 ctx->rest -= b->last - b->pos; | |
2336 b->pos = b->last; | |
2337 return NGX_AGAIN; | |
2338 } | |
2339 | |
2340 b->pos += ctx->rest; | |
2341 ctx->rest = 0; | |
2342 ctx->state = ngx_http_grpc_st_start; | |
2343 | |
2344 continue; | |
2345 } | |
2346 | |
2347 /* | |
2348 * data frame: | |
2349 * | |
2350 * +---------------+ | |
2351 * |Pad Length? (8)| | |
2352 * +---------------+-----------------------------------------------+ | |
2353 * | Data (*) ... | |
2354 * +---------------------------------------------------------------+ | |
2355 * | Padding (*) ... | |
2356 * +---------------------------------------------------------------+ | |
2357 */ | |
2358 | |
2359 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
2360 | |
2361 if (ctx->rest == 0) { | |
2362 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2363 "upstream sent too short http2 frame"); | |
2364 return NGX_ERROR; | |
2365 } | |
2366 | |
2367 if (b->pos == b->last) { | |
2368 return NGX_AGAIN; | |
2369 } | |
2370 | |
2371 ctx->flags &= ~NGX_HTTP_V2_PADDED_FLAG; | |
2372 ctx->padding = *b->pos++; | |
2373 ctx->rest -= 1; | |
2374 | |
2375 if (ctx->padding > ctx->rest) { | |
2376 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2377 "upstream sent http2 frame with too long " | |
2378 "padding: %d in frame %uz", | |
2379 ctx->padding, ctx->rest); | |
2380 return NGX_ERROR; | |
2381 } | |
2382 | |
2383 continue; | |
2384 } | |
2385 | |
2386 if (ctx->rest == ctx->padding) { | |
2387 goto done; | |
2388 } | |
2389 | |
2390 if (b->pos == b->last) { | |
2391 return NGX_AGAIN; | |
2392 } | |
2393 | |
2394 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
2395 if (cl == NULL) { | |
2396 return NGX_ERROR; | |
2397 } | |
2398 | |
2399 *ll = cl; | |
2400 ll = &cl->next; | |
2401 | |
2402 buf = cl->buf; | |
2403 | |
2404 buf->flush = 1; | |
2405 buf->memory = 1; | |
2406 | |
2407 buf->pos = b->pos; | |
2408 buf->tag = u->output.tag; | |
2409 | |
2410 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2411 "grpc output buf %p", buf->pos); | |
2412 | |
2413 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
2414 | |
2415 ctx->rest -= b->last - b->pos; | |
2416 b->pos = b->last; | |
2417 buf->last = b->pos; | |
2418 | |
2419 return NGX_AGAIN; | |
2420 } | |
2421 | |
2422 b->pos += ctx->rest - ctx->padding; | |
2423 buf->last = b->pos; | |
2424 ctx->rest = ctx->padding; | |
2425 | |
2426 done: | |
2427 | |
2428 if (ctx->padding) { | |
2429 ctx->state = ngx_http_grpc_st_padding; | |
2430 continue; | |
2431 } | |
2432 | |
2433 ctx->state = ngx_http_grpc_st_start; | |
2434 | |
2435 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2436 ctx->done = 1; |
7233 | 2437 } |
2438 } | |
2439 | |
2440 return NGX_OK; | |
2441 } | |
2442 | |
2443 | |
2444 static ngx_int_t | |
2445 ngx_http_grpc_parse_frame(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
2446 ngx_buf_t *b) | |
2447 { | |
2448 u_char ch, *p; | |
2449 ngx_http_grpc_state_e state; | |
2450 | |
2451 state = ctx->state; | |
2452 | |
2453 for (p = b->pos; p < b->last; p++) { | |
2454 ch = *p; | |
2455 | |
2456 #if 0 | |
2457 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2458 "grpc frame byte: %02Xd, s:%d", ch, state); | |
2459 #endif | |
2460 | |
2461 switch (state) { | |
2462 | |
2463 case ngx_http_grpc_st_start: | |
2464 ctx->rest = ch << 16; | |
2465 state = ngx_http_grpc_st_length_2; | |
2466 break; | |
2467 | |
2468 case ngx_http_grpc_st_length_2: | |
2469 ctx->rest |= ch << 8; | |
2470 state = ngx_http_grpc_st_length_3; | |
2471 break; | |
2472 | |
2473 case ngx_http_grpc_st_length_3: | |
2474 ctx->rest |= ch; | |
2475 | |
2476 if (ctx->rest > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
2477 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2478 "upstream sent too large http2 frame: %uz", | |
2479 ctx->rest); | |
2480 return NGX_ERROR; | |
2481 } | |
2482 | |
2483 state = ngx_http_grpc_st_type; | |
2484 break; | |
2485 | |
2486 case ngx_http_grpc_st_type: | |
2487 ctx->type = ch; | |
2488 state = ngx_http_grpc_st_flags; | |
2489 break; | |
2490 | |
2491 case ngx_http_grpc_st_flags: | |
2492 ctx->flags = ch; | |
2493 state = ngx_http_grpc_st_stream_id; | |
2494 break; | |
2495 | |
2496 case ngx_http_grpc_st_stream_id: | |
2497 ctx->stream_id = (ch & 0x7f) << 24; | |
2498 state = ngx_http_grpc_st_stream_id_2; | |
2499 break; | |
2500 | |
2501 case ngx_http_grpc_st_stream_id_2: | |
2502 ctx->stream_id |= ch << 16; | |
2503 state = ngx_http_grpc_st_stream_id_3; | |
2504 break; | |
2505 | |
2506 case ngx_http_grpc_st_stream_id_3: | |
2507 ctx->stream_id |= ch << 8; | |
2508 state = ngx_http_grpc_st_stream_id_4; | |
2509 break; | |
2510 | |
2511 case ngx_http_grpc_st_stream_id_4: | |
2512 ctx->stream_id |= ch; | |
2513 | |
2514 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2515 "grpc frame: %d, len: %uz, f:%d, i:%ui", | |
2516 ctx->type, ctx->rest, ctx->flags, ctx->stream_id); | |
2517 | |
2518 b->pos = p + 1; | |
2519 | |
2520 ctx->state = ngx_http_grpc_st_payload; | |
2521 ctx->frame_state = 0; | |
2522 | |
2523 return NGX_OK; | |
2524 | |
2525 /* suppress warning */ | |
2526 case ngx_http_grpc_st_payload: | |
2527 case ngx_http_grpc_st_padding: | |
2528 break; | |
2529 } | |
2530 } | |
2531 | |
2532 b->pos = p; | |
2533 ctx->state = state; | |
2534 | |
2535 return NGX_AGAIN; | |
2536 } | |
2537 | |
2538 | |
2539 static ngx_int_t | |
2540 ngx_http_grpc_parse_header(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
2541 ngx_buf_t *b) | |
2542 { | |
2543 u_char ch, *p, *last; | |
2544 size_t min; | |
2545 ngx_int_t rc; | |
2546 enum { | |
2547 sw_start = 0, | |
2548 sw_padding_length, | |
2549 sw_dependency, | |
2550 sw_dependency_2, | |
2551 sw_dependency_3, | |
2552 sw_dependency_4, | |
2553 sw_weight, | |
2554 sw_fragment, | |
2555 sw_padding | |
2556 } state; | |
2557 | |
2558 state = ctx->frame_state; | |
2559 | |
2560 if (state == sw_start) { | |
2561 | |
2562 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2563 "grpc parse header: start"); | |
2564 | |
2565 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME) { | |
2566 ctx->parsing_headers = 1; | |
2567 ctx->fragment_state = 0; | |
2568 | |
2569 min = (ctx->flags & NGX_HTTP_V2_PADDED_FLAG ? 1 : 0) | |
2570 + (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG ? 5 : 0); | |
2571 | |
2572 if (ctx->rest < min) { | |
2573 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2574 "upstream sent headers frame " | |
2575 "with invalid length: %uz", | |
2576 ctx->rest); | |
2577 return NGX_ERROR; | |
2578 } | |
2579 | |
2580 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
2581 ctx->end_stream = 1; | |
2582 } | |
2583 | |
2584 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
2585 state = sw_padding_length; | |
2586 | |
2587 } else if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
2588 state = sw_dependency; | |
2589 | |
2590 } else { | |
2591 state = sw_fragment; | |
2592 } | |
2593 | |
2594 } else if (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) { | |
2595 state = sw_fragment; | |
2596 } | |
2597 | |
2598 ctx->padding = 0; | |
7242
25a4353633a0
gRPC: fixed missing state save in frame header parsing.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7240
diff
changeset
|
2599 ctx->frame_state = state; |
7233 | 2600 } |
2601 | |
2602 if (state < sw_fragment) { | |
2603 | |
2604 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
2605 last = b->last; | |
2606 | |
2607 } else { | |
2608 last = b->pos + ctx->rest; | |
2609 } | |
2610 | |
2611 for (p = b->pos; p < last; p++) { | |
2612 ch = *p; | |
2613 | |
2614 #if 0 | |
2615 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2616 "grpc header byte: %02Xd s:%d", ch, state); | |
2617 #endif | |
2618 | |
2619 /* | |
2620 * headers frame: | |
2621 * | |
2622 * +---------------+ | |
2623 * |Pad Length? (8)| | |
2624 * +-+-------------+----------------------------------------------+ | |
2625 * |E| Stream Dependency? (31) | | |
2626 * +-+-------------+----------------------------------------------+ | |
2627 * | Weight? (8) | | |
2628 * +-+-------------+----------------------------------------------+ | |
2629 * | Header Block Fragment (*) ... | |
2630 * +--------------------------------------------------------------+ | |
2631 * | Padding (*) ... | |
2632 * +--------------------------------------------------------------+ | |
2633 */ | |
2634 | |
2635 switch (state) { | |
2636 | |
2637 case sw_padding_length: | |
2638 | |
2639 ctx->padding = ch; | |
2640 | |
2641 if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
2642 state = sw_dependency; | |
2643 break; | |
2644 } | |
2645 | |
2646 goto fragment; | |
2647 | |
2648 case sw_dependency: | |
2649 state = sw_dependency_2; | |
2650 break; | |
2651 | |
2652 case sw_dependency_2: | |
2653 state = sw_dependency_3; | |
2654 break; | |
2655 | |
2656 case sw_dependency_3: | |
2657 state = sw_dependency_4; | |
2658 break; | |
2659 | |
2660 case sw_dependency_4: | |
2661 state = sw_weight; | |
2662 break; | |
2663 | |
2664 case sw_weight: | |
2665 goto fragment; | |
2666 | |
2667 /* suppress warning */ | |
2668 case sw_start: | |
2669 case sw_fragment: | |
2670 case sw_padding: | |
2671 break; | |
2672 } | |
2673 } | |
2674 | |
2675 ctx->rest -= p - b->pos; | |
2676 b->pos = p; | |
2677 | |
2678 ctx->frame_state = state; | |
2679 return NGX_AGAIN; | |
2680 | |
2681 fragment: | |
2682 | |
2683 p++; | |
2684 ctx->rest -= p - b->pos; | |
2685 b->pos = p; | |
2686 | |
2687 if (ctx->padding > ctx->rest) { | |
2688 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2689 "upstream sent http2 frame with too long " | |
2690 "padding: %d in frame %uz", | |
2691 ctx->padding, ctx->rest); | |
2692 return NGX_ERROR; | |
2693 } | |
2694 | |
2695 state = sw_fragment; | |
2696 ctx->frame_state = state; | |
2697 } | |
2698 | |
2699 if (state == sw_fragment) { | |
2700 | |
2701 rc = ngx_http_grpc_parse_fragment(r, ctx, b); | |
2702 | |
2703 if (rc == NGX_AGAIN) { | |
2704 return NGX_AGAIN; | |
2705 } | |
2706 | |
2707 if (rc == NGX_ERROR) { | |
2708 return NGX_ERROR; | |
2709 } | |
2710 | |
2711 if (rc == NGX_OK) { | |
2712 return NGX_OK; | |
2713 } | |
2714 | |
2715 /* rc == NGX_DONE */ | |
2716 | |
2717 state = sw_padding; | |
2718 ctx->frame_state = state; | |
2719 } | |
2720 | |
2721 if (state == sw_padding) { | |
2722 | |
2723 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
2724 | |
2725 ctx->rest -= b->last - b->pos; | |
2726 b->pos = b->last; | |
2727 | |
2728 return NGX_AGAIN; | |
2729 } | |
2730 | |
2731 b->pos += ctx->rest; | |
2732 ctx->rest = 0; | |
2733 | |
2734 ctx->state = ngx_http_grpc_st_start; | |
2735 | |
2736 if (ctx->flags & NGX_HTTP_V2_END_HEADERS_FLAG) { | |
2737 | |
2738 if (ctx->fragment_state) { | |
2739 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2740 "upstream sent truncated http2 header"); | |
2741 return NGX_ERROR; | |
2742 } | |
2743 | |
2744 ctx->parsing_headers = 0; | |
2745 | |
2746 return NGX_HTTP_PARSE_HEADER_DONE; | |
2747 } | |
2748 | |
2749 return NGX_AGAIN; | |
2750 } | |
2751 | |
2752 /* unreachable */ | |
2753 | |
2754 return NGX_ERROR; | |
2755 } | |
2756 | |
2757 | |
2758 static ngx_int_t | |
2759 ngx_http_grpc_parse_fragment(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
2760 ngx_buf_t *b) | |
2761 { | |
2762 u_char ch, *p, *last; | |
2763 size_t size; | |
2764 ngx_uint_t index, size_update; | |
2765 enum { | |
2766 sw_start = 0, | |
2767 sw_index, | |
2768 sw_name_length, | |
2769 sw_name_length_2, | |
2770 sw_name_length_3, | |
2771 sw_name_length_4, | |
2772 sw_name, | |
2773 sw_name_bytes, | |
2774 sw_value_length, | |
2775 sw_value_length_2, | |
2776 sw_value_length_3, | |
2777 sw_value_length_4, | |
2778 sw_value, | |
2779 sw_value_bytes | |
2780 } state; | |
2781 | |
2782 /* header block fragment */ | |
2783 | |
2784 #if 0 | |
2785 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2786 "grpc header fragment %p:%p rest:%uz", | |
2787 b->pos, b->last, ctx->rest); | |
2788 #endif | |
2789 | |
2790 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
2791 last = b->last; | |
2792 | |
2793 } else { | |
2794 last = b->pos + ctx->rest - ctx->padding; | |
2795 } | |
2796 | |
2797 state = ctx->fragment_state; | |
2798 | |
2799 for (p = b->pos; p < last; p++) { | |
2800 ch = *p; | |
2801 | |
2802 #if 0 | |
2803 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2804 "grpc header byte: %02Xd s:%d", ch, state); | |
2805 #endif | |
2806 | |
2807 switch (state) { | |
2808 | |
2809 case sw_start: | |
2810 ctx->index = 0; | |
2811 | |
2812 if ((ch & 0x80) == 0x80) { | |
2813 /* | |
2814 * indexed header: | |
2815 * | |
2816 * 0 1 2 3 4 5 6 7 | |
2817 * +---+---+---+---+---+---+---+---+ | |
2818 * | 1 | Index (7+) | | |
2819 * +---+---------------------------+ | |
2820 */ | |
2821 | |
2822 index = ch & ~0x80; | |
2823 | |
2824 if (index == 0 || index > 61) { | |
2825 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2826 "upstream sent invalid http2 " | |
2827 "table index: %ui", index); | |
2828 return NGX_ERROR; | |
2829 } | |
2830 | |
2831 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2832 "grpc indexed header: %ui", index); | |
2833 | |
2834 ctx->index = index; | |
2835 ctx->literal = 0; | |
2836 | |
2837 goto done; | |
2838 | |
2839 } else if ((ch & 0xc0) == 0x40) { | |
2840 /* | |
2841 * literal header with incremental indexing: | |
2842 * | |
2843 * 0 1 2 3 4 5 6 7 | |
2844 * +---+---+---+---+---+---+---+---+ | |
2845 * | 0 | 1 | Index (6+) | | |
2846 * +---+---+-----------------------+ | |
2847 * | H | Value Length (7+) | | |
2848 * +---+---------------------------+ | |
2849 * | Value String (Length octets) | | |
2850 * +-------------------------------+ | |
2851 * | |
2852 * 0 1 2 3 4 5 6 7 | |
2853 * +---+---+---+---+---+---+---+---+ | |
2854 * | 0 | 1 | 0 | | |
2855 * +---+---+-----------------------+ | |
2856 * | H | Name Length (7+) | | |
2857 * +---+---------------------------+ | |
2858 * | Name String (Length octets) | | |
2859 * +---+---------------------------+ | |
2860 * | H | Value Length (7+) | | |
2861 * +---+---------------------------+ | |
2862 * | Value String (Length octets) | | |
2863 * +-------------------------------+ | |
2864 */ | |
2865 | |
2866 index = ch & ~0xc0; | |
2867 | |
2868 if (index > 61) { | |
2869 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2870 "upstream sent invalid http2 " | |
2871 "table index: %ui", index); | |
2872 return NGX_ERROR; | |
2873 } | |
2874 | |
2875 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2876 "grpc literal header: %ui", index); | |
2877 | |
2878 if (index == 0) { | |
2879 state = sw_name_length; | |
2880 break; | |
2881 } | |
2882 | |
2883 ctx->index = index; | |
2884 ctx->literal = 1; | |
2885 | |
2886 state = sw_value_length; | |
2887 break; | |
2888 | |
2889 } else if ((ch & 0xe0) == 0x20) { | |
2890 /* | |
2891 * dynamic table size update: | |
2892 * | |
2893 * 0 1 2 3 4 5 6 7 | |
2894 * +---+---+---+---+---+---+---+---+ | |
2895 * | 0 | 0 | 1 | Max size (5+) | | |
2896 * +---+---------------------------+ | |
2897 */ | |
2898 | |
2899 size_update = ch & ~0xe0; | |
2900 | |
2901 if (size_update > 0) { | |
2902 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2903 "upstream sent invalid http2 " | |
2904 "dynamic table size update: %ui", | |
2905 size_update); | |
2906 return NGX_ERROR; | |
2907 } | |
2908 | |
2909 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2910 "grpc table size update: %ui", size_update); | |
2911 | |
2912 break; | |
2913 | |
2914 } else if ((ch & 0xf0) == 0x10) { | |
2915 /* | |
2916 * literal header field never indexed: | |
2917 * | |
2918 * 0 1 2 3 4 5 6 7 | |
2919 * +---+---+---+---+---+---+---+---+ | |
2920 * | 0 | 0 | 0 | 1 | Index (4+) | | |
2921 * +---+---+-----------------------+ | |
2922 * | H | Value Length (7+) | | |
2923 * +---+---------------------------+ | |
2924 * | Value String (Length octets) | | |
2925 * +-------------------------------+ | |
2926 * | |
2927 * 0 1 2 3 4 5 6 7 | |
2928 * +---+---+---+---+---+---+---+---+ | |
2929 * | 0 | 0 | 0 | 1 | 0 | | |
2930 * +---+---+-----------------------+ | |
2931 * | H | Name Length (7+) | | |
2932 * +---+---------------------------+ | |
2933 * | Name String (Length octets) | | |
2934 * +---+---------------------------+ | |
2935 * | H | Value Length (7+) | | |
2936 * +---+---------------------------+ | |
2937 * | Value String (Length octets) | | |
2938 * +-------------------------------+ | |
2939 */ | |
2940 | |
2941 index = ch & ~0xf0; | |
2942 | |
2943 if (index == 0x0f) { | |
2944 ctx->index = index; | |
2945 ctx->literal = 1; | |
2946 state = sw_index; | |
2947 break; | |
2948 } | |
2949 | |
2950 if (index == 0) { | |
2951 state = sw_name_length; | |
2952 break; | |
2953 } | |
2954 | |
2955 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2956 "grpc literal header never indexed: %ui", | |
2957 index); | |
2958 | |
2959 ctx->index = index; | |
2960 ctx->literal = 1; | |
2961 | |
2962 state = sw_value_length; | |
2963 break; | |
2964 | |
2965 } else if ((ch & 0xf0) == 0x00) { | |
2966 /* | |
2967 * literal header field without indexing: | |
2968 * | |
2969 * 0 1 2 3 4 5 6 7 | |
2970 * +---+---+---+---+---+---+---+---+ | |
2971 * | 0 | 0 | 0 | 0 | Index (4+) | | |
2972 * +---+---+-----------------------+ | |
2973 * | H | Value Length (7+) | | |
2974 * +---+---------------------------+ | |
2975 * | Value String (Length octets) | | |
2976 * +-------------------------------+ | |
2977 * | |
2978 * 0 1 2 3 4 5 6 7 | |
2979 * +---+---+---+---+---+---+---+---+ | |
2980 * | 0 | 0 | 0 | 0 | 0 | | |
2981 * +---+---+-----------------------+ | |
2982 * | H | Name Length (7+) | | |
2983 * +---+---------------------------+ | |
2984 * | Name String (Length octets) | | |
2985 * +---+---------------------------+ | |
2986 * | H | Value Length (7+) | | |
2987 * +---+---------------------------+ | |
2988 * | Value String (Length octets) | | |
2989 * +-------------------------------+ | |
2990 */ | |
2991 | |
2992 index = ch & ~0xf0; | |
2993 | |
2994 if (index == 0x0f) { | |
2995 ctx->index = index; | |
2996 ctx->literal = 1; | |
2997 state = sw_index; | |
2998 break; | |
2999 } | |
3000 | |
3001 if (index == 0) { | |
3002 state = sw_name_length; | |
3003 break; | |
3004 } | |
3005 | |
3006 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3007 "grpc literal header without indexing: %ui", | |
3008 index); | |
3009 | |
3010 ctx->index = index; | |
3011 ctx->literal = 1; | |
3012 | |
3013 state = sw_value_length; | |
3014 break; | |
3015 } | |
3016 | |
3017 /* not reached */ | |
3018 | |
3019 return NGX_ERROR; | |
3020 | |
3021 case sw_index: | |
3022 ctx->index = ctx->index + (ch & ~0x80); | |
3023 | |
3024 if (ch & 0x80) { | |
3025 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3026 "upstream sent http2 table index " | |
3027 "with continuation flag"); | |
3028 return NGX_ERROR; | |
3029 } | |
3030 | |
3031 if (ctx->index > 61) { | |
3032 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3033 "upstream sent invalid http2 " | |
3034 "table index: %ui", ctx->index); | |
3035 return NGX_ERROR; | |
3036 } | |
3037 | |
3038 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3039 "grpc header index: %ui", ctx->index); | |
3040 | |
3041 state = sw_value_length; | |
3042 break; | |
3043 | |
3044 case sw_name_length: | |
3045 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
3046 ctx->field_length = ch & ~0x80; | |
3047 | |
3048 if (ctx->field_length == 0x7f) { | |
3049 state = sw_name_length_2; | |
3050 break; | |
3051 } | |
3052 | |
3053 if (ctx->field_length == 0) { | |
3054 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3055 "upstream sent zero http2 " | |
3056 "header name length"); | |
3057 return NGX_ERROR; | |
3058 } | |
3059 | |
3060 state = sw_name; | |
3061 break; | |
3062 | |
3063 case sw_name_length_2: | |
3064 ctx->field_length += ch & ~0x80; | |
3065 | |
3066 if (ch & 0x80) { | |
3067 state = sw_name_length_3; | |
3068 break; | |
3069 } | |
3070 | |
3071 state = sw_name; | |
3072 break; | |
3073 | |
3074 case sw_name_length_3: | |
3075 ctx->field_length += (ch & ~0x80) << 7; | |
3076 | |
3077 if (ch & 0x80) { | |
3078 state = sw_name_length_4; | |
3079 break; | |
3080 } | |
3081 | |
3082 state = sw_name; | |
3083 break; | |
3084 | |
3085 case sw_name_length_4: | |
3086 ctx->field_length += (ch & ~0x80) << 14; | |
3087 | |
3088 if (ch & 0x80) { | |
3089 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3090 "upstream sent too large http2 " | |
3091 "header name length"); | |
3092 return NGX_ERROR; | |
3093 } | |
3094 | |
3095 state = sw_name; | |
3096 break; | |
3097 | |
3098 case sw_name: | |
3099 ctx->name.len = ctx->field_huffman ? | |
3100 ctx->field_length * 8 / 5 : ctx->field_length; | |
3101 | |
3102 ctx->name.data = ngx_pnalloc(r->pool, ctx->name.len + 1); | |
3103 if (ctx->name.data == NULL) { | |
3104 return NGX_ERROR; | |
3105 } | |
3106 | |
3107 ctx->field_end = ctx->name.data; | |
3108 ctx->field_rest = ctx->field_length; | |
3109 ctx->field_state = 0; | |
3110 | |
3111 state = sw_name_bytes; | |
3112 | |
3113 /* fall through */ | |
3114 | |
3115 case sw_name_bytes: | |
3116 | |
3117 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3118 "grpc name: len:%uz h:%d last:%uz, rest:%uz", | |
3119 ctx->field_length, | |
3120 ctx->field_huffman, | |
3121 last - p, | |
3122 ctx->rest - (p - b->pos)); | |
3123 | |
3124 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
3125 ctx->field_rest -= size; | |
3126 | |
3127 if (ctx->field_huffman) { | |
3128 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
3129 &ctx->field_end, | |
3130 ctx->field_rest == 0, | |
3131 r->connection->log) | |
3132 != NGX_OK) | |
3133 { | |
3134 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3135 "upstream sent invalid encoded header"); | |
3136 return NGX_ERROR; | |
3137 } | |
3138 | |
3139 ctx->name.len = ctx->field_end - ctx->name.data; | |
3140 ctx->name.data[ctx->name.len] = '\0'; | |
3141 | |
3142 } else { | |
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3143 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
7233 | 3144 ctx->name.data[ctx->name.len] = '\0'; |
3145 } | |
3146 | |
3147 p += size - 1; | |
3148 | |
3149 if (ctx->field_rest == 0) { | |
3150 state = sw_value_length; | |
3151 } | |
3152 | |
3153 break; | |
3154 | |
3155 case sw_value_length: | |
3156 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
3157 ctx->field_length = ch & ~0x80; | |
3158 | |
3159 if (ctx->field_length == 0x7f) { | |
3160 state = sw_value_length_2; | |
3161 break; | |
3162 } | |
3163 | |
3164 if (ctx->field_length == 0) { | |
3165 ngx_str_set(&ctx->value, ""); | |
3166 goto done; | |
3167 } | |
3168 | |
3169 state = sw_value; | |
3170 break; | |
3171 | |
3172 case sw_value_length_2: | |
3173 ctx->field_length += ch & ~0x80; | |
3174 | |
3175 if (ch & 0x80) { | |
3176 state = sw_value_length_3; | |
3177 break; | |
3178 } | |
3179 | |
3180 state = sw_value; | |
3181 break; | |
3182 | |
3183 case sw_value_length_3: | |
3184 ctx->field_length += (ch & ~0x80) << 7; | |
3185 | |
3186 if (ch & 0x80) { | |
3187 state = sw_value_length_4; | |
3188 break; | |
3189 } | |
3190 | |
3191 state = sw_value; | |
3192 break; | |
3193 | |
3194 case sw_value_length_4: | |
3195 ctx->field_length += (ch & ~0x80) << 14; | |
3196 | |
3197 if (ch & 0x80) { | |
3198 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3199 "upstream sent too large http2 " | |
3200 "header value length"); | |
3201 return NGX_ERROR; | |
3202 } | |
3203 | |
3204 state = sw_value; | |
3205 break; | |
3206 | |
3207 case sw_value: | |
3208 ctx->value.len = ctx->field_huffman ? | |
3209 ctx->field_length * 8 / 5 : ctx->field_length; | |
3210 | |
3211 ctx->value.data = ngx_pnalloc(r->pool, ctx->value.len + 1); | |
3212 if (ctx->value.data == NULL) { | |
3213 return NGX_ERROR; | |
3214 } | |
3215 | |
3216 ctx->field_end = ctx->value.data; | |
3217 ctx->field_rest = ctx->field_length; | |
3218 ctx->field_state = 0; | |
3219 | |
3220 state = sw_value_bytes; | |
3221 | |
3222 /* fall through */ | |
3223 | |
3224 case sw_value_bytes: | |
3225 | |
3226 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3227 "grpc value: len:%uz h:%d last:%uz, rest:%uz", | |
3228 ctx->field_length, | |
3229 ctx->field_huffman, | |
3230 last - p, | |
3231 ctx->rest - (p - b->pos)); | |
3232 | |
3233 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
3234 ctx->field_rest -= size; | |
3235 | |
3236 if (ctx->field_huffman) { | |
3237 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
3238 &ctx->field_end, | |
3239 ctx->field_rest == 0, | |
3240 r->connection->log) | |
3241 != NGX_OK) | |
3242 { | |
3243 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3244 "upstream sent invalid encoded header"); | |
3245 return NGX_ERROR; | |
3246 } | |
3247 | |
3248 ctx->value.len = ctx->field_end - ctx->value.data; | |
3249 ctx->value.data[ctx->value.len] = '\0'; | |
3250 | |
3251 } else { | |
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3252 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
7233 | 3253 ctx->value.data[ctx->value.len] = '\0'; |
3254 } | |
3255 | |
3256 p += size - 1; | |
3257 | |
3258 if (ctx->field_rest == 0) { | |
3259 goto done; | |
3260 } | |
3261 | |
3262 break; | |
3263 } | |
3264 | |
3265 continue; | |
3266 | |
3267 done: | |
3268 | |
3269 p++; | |
3270 ctx->rest -= p - b->pos; | |
3271 ctx->fragment_state = sw_start; | |
3272 b->pos = p; | |
3273 | |
3274 if (ctx->index) { | |
3275 ctx->name = *ngx_http_v2_get_static_name(ctx->index); | |
3276 } | |
3277 | |
3278 if (ctx->index && !ctx->literal) { | |
3279 ctx->value = *ngx_http_v2_get_static_value(ctx->index); | |
3280 } | |
3281 | |
3282 if (!ctx->index) { | |
3283 if (ngx_http_grpc_validate_header_name(r, &ctx->name) != NGX_OK) { | |
3284 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3285 "upstream sent invalid header: \"%V: %V\"", | |
3286 &ctx->name, &ctx->value); | |
3287 return NGX_ERROR; | |
3288 } | |
3289 } | |
3290 | |
3291 if (!ctx->index || ctx->literal) { | |
3292 if (ngx_http_grpc_validate_header_value(r, &ctx->value) != NGX_OK) { | |
3293 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3294 "upstream sent invalid header: \"%V: %V\"", | |
3295 &ctx->name, &ctx->value); | |
3296 return NGX_ERROR; | |
3297 } | |
3298 } | |
3299 | |
3300 return NGX_OK; | |
3301 } | |
3302 | |
3303 ctx->rest -= p - b->pos; | |
3304 ctx->fragment_state = state; | |
3305 b->pos = p; | |
3306 | |
3307 if (ctx->rest > ctx->padding) { | |
3308 return NGX_AGAIN; | |
3309 } | |
3310 | |
3311 return NGX_DONE; | |
3312 } | |
3313 | |
3314 | |
3315 static ngx_int_t | |
3316 ngx_http_grpc_validate_header_name(ngx_http_request_t *r, ngx_str_t *s) | |
3317 { | |
3318 u_char ch; | |
3319 ngx_uint_t i; | |
3320 | |
3321 for (i = 0; i < s->len; i++) { | |
3322 ch = s->data[i]; | |
3323 | |
3324 if (ch == ':' && i > 0) { | |
3325 return NGX_ERROR; | |
3326 } | |
3327 | |
3328 if (ch >= 'A' && ch <= 'Z') { | |
3329 return NGX_ERROR; | |
3330 } | |
3331 | |
3332 if (ch == '\0' || ch == CR || ch == LF) { | |
3333 return NGX_ERROR; | |
3334 } | |
3335 } | |
3336 | |
3337 return NGX_OK; | |
3338 } | |
3339 | |
3340 | |
3341 static ngx_int_t | |
3342 ngx_http_grpc_validate_header_value(ngx_http_request_t *r, ngx_str_t *s) | |
3343 { | |
3344 u_char ch; | |
3345 ngx_uint_t i; | |
3346 | |
3347 for (i = 0; i < s->len; i++) { | |
3348 ch = s->data[i]; | |
3349 | |
3350 if (ch == '\0' || ch == CR || ch == LF) { | |
3351 return NGX_ERROR; | |
3352 } | |
3353 } | |
3354 | |
3355 return NGX_OK; | |
3356 } | |
3357 | |
3358 | |
3359 static ngx_int_t | |
3360 ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
3361 ngx_buf_t *b) | |
3362 { | |
3363 u_char ch, *p, *last; | |
3364 enum { | |
3365 sw_start = 0, | |
3366 sw_error_2, | |
3367 sw_error_3, | |
3368 sw_error_4 | |
3369 } state; | |
3370 | |
3371 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3372 last = b->last; | |
3373 | |
3374 } else { | |
3375 last = b->pos + ctx->rest; | |
3376 } | |
3377 | |
3378 state = ctx->frame_state; | |
3379 | |
3380 if (state == sw_start) { | |
3381 if (ctx->rest != 4) { | |
3382 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3383 "upstream sent rst stream frame " | |
3384 "with invalid length: %uz", | |
3385 ctx->rest); | |
3386 return NGX_ERROR; | |
3387 } | |
3388 } | |
3389 | |
3390 for (p = b->pos; p < last; p++) { | |
3391 ch = *p; | |
3392 | |
3393 #if 0 | |
3394 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3395 "grpc rst byte: %02Xd s:%d", ch, state); | |
3396 #endif | |
3397 | |
3398 switch (state) { | |
3399 | |
3400 case sw_start: | |
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3401 ctx->error = (ngx_uint_t) ch << 24; |
7233 | 3402 state = sw_error_2; |
3403 break; | |
3404 | |
3405 case sw_error_2: | |
3406 ctx->error |= ch << 16; | |
3407 state = sw_error_3; | |
3408 break; | |
3409 | |
3410 case sw_error_3: | |
3411 ctx->error |= ch << 8; | |
3412 state = sw_error_4; | |
3413 break; | |
3414 | |
3415 case sw_error_4: | |
3416 ctx->error |= ch; | |
3417 state = sw_start; | |
3418 | |
3419 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3420 "grpc error: %ui", ctx->error); | |
3421 | |
3422 break; | |
3423 } | |
3424 } | |
3425 | |
3426 ctx->rest -= p - b->pos; | |
3427 ctx->frame_state = state; | |
3428 b->pos = p; | |
3429 | |
3430 if (ctx->rest > 0) { | |
3431 return NGX_AGAIN; | |
3432 } | |
3433 | |
3434 return NGX_OK; | |
3435 } | |
3436 | |
3437 | |
3438 static ngx_int_t | |
3439 ngx_http_grpc_parse_goaway(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
3440 ngx_buf_t *b) | |
3441 { | |
3442 u_char ch, *p, *last; | |
3443 enum { | |
3444 sw_start = 0, | |
3445 sw_last_stream_id_2, | |
3446 sw_last_stream_id_3, | |
3447 sw_last_stream_id_4, | |
3448 sw_error, | |
3449 sw_error_2, | |
3450 sw_error_3, | |
3451 sw_error_4, | |
3452 sw_debug | |
3453 } state; | |
3454 | |
3455 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3456 last = b->last; | |
3457 | |
3458 } else { | |
3459 last = b->pos + ctx->rest; | |
3460 } | |
3461 | |
3462 state = ctx->frame_state; | |
3463 | |
3464 if (state == sw_start) { | |
3465 | |
3466 if (ctx->stream_id) { | |
3467 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3468 "upstream sent goaway frame " | |
3469 "with non-zero stream id: %ui", | |
3470 ctx->stream_id); | |
3471 return NGX_ERROR; | |
3472 } | |
3473 | |
3474 if (ctx->rest < 8) { | |
3475 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3476 "upstream sent goaway frame " | |
3477 "with invalid length: %uz", | |
3478 ctx->rest); | |
3479 return NGX_ERROR; | |
3480 } | |
3481 } | |
3482 | |
3483 for (p = b->pos; p < last; p++) { | |
3484 ch = *p; | |
3485 | |
3486 #if 0 | |
3487 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3488 "grpc goaway byte: %02Xd s:%d", ch, state); | |
3489 #endif | |
3490 | |
3491 switch (state) { | |
3492 | |
3493 case sw_start: | |
3494 ctx->stream_id = (ch & 0x7f) << 24; | |
3495 state = sw_last_stream_id_2; | |
3496 break; | |
3497 | |
3498 case sw_last_stream_id_2: | |
3499 ctx->stream_id |= ch << 16; | |
3500 state = sw_last_stream_id_3; | |
3501 break; | |
3502 | |
3503 case sw_last_stream_id_3: | |
3504 ctx->stream_id |= ch << 8; | |
3505 state = sw_last_stream_id_4; | |
3506 break; | |
3507 | |
3508 case sw_last_stream_id_4: | |
3509 ctx->stream_id |= ch; | |
3510 state = sw_error; | |
3511 break; | |
3512 | |
3513 case sw_error: | |
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3514 ctx->error = (ngx_uint_t) ch << 24; |
7233 | 3515 state = sw_error_2; |
3516 break; | |
3517 | |
3518 case sw_error_2: | |
3519 ctx->error |= ch << 16; | |
3520 state = sw_error_3; | |
3521 break; | |
3522 | |
3523 case sw_error_3: | |
3524 ctx->error |= ch << 8; | |
3525 state = sw_error_4; | |
3526 break; | |
3527 | |
3528 case sw_error_4: | |
3529 ctx->error |= ch; | |
3530 state = sw_debug; | |
3531 break; | |
3532 | |
3533 case sw_debug: | |
3534 break; | |
3535 } | |
3536 } | |
3537 | |
3538 ctx->rest -= p - b->pos; | |
3539 ctx->frame_state = state; | |
3540 b->pos = p; | |
3541 | |
3542 if (ctx->rest > 0) { | |
3543 return NGX_AGAIN; | |
3544 } | |
3545 | |
3546 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3547 "grpc goaway: %ui, stream %ui", | |
3548 ctx->error, ctx->stream_id); | |
3549 | |
3550 ctx->state = ngx_http_grpc_st_start; | |
3551 | |
3552 return NGX_OK; | |
3553 } | |
3554 | |
3555 | |
3556 static ngx_int_t | |
3557 ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
3558 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
3559 { | |
3560 u_char ch, *p, *last; | |
3561 enum { | |
3562 sw_start = 0, | |
3563 sw_size_2, | |
3564 sw_size_3, | |
3565 sw_size_4 | |
3566 } state; | |
3567 | |
3568 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3569 last = b->last; | |
3570 | |
3571 } else { | |
3572 last = b->pos + ctx->rest; | |
3573 } | |
3574 | |
3575 state = ctx->frame_state; | |
3576 | |
3577 if (state == sw_start) { | |
3578 if (ctx->rest != 4) { | |
3579 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3580 "upstream sent window update frame " | |
3581 "with invalid length: %uz", | |
3582 ctx->rest); | |
3583 return NGX_ERROR; | |
3584 } | |
3585 } | |
3586 | |
3587 for (p = b->pos; p < last; p++) { | |
3588 ch = *p; | |
3589 | |
3590 #if 0 | |
3591 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3592 "grpc window update byte: %02Xd s:%d", ch, state); | |
3593 #endif | |
3594 | |
3595 switch (state) { | |
3596 | |
3597 case sw_start: | |
3598 ctx->window_update = (ch & 0x7f) << 24; | |
3599 state = sw_size_2; | |
3600 break; | |
3601 | |
3602 case sw_size_2: | |
3603 ctx->window_update |= ch << 16; | |
3604 state = sw_size_3; | |
3605 break; | |
3606 | |
3607 case sw_size_3: | |
3608 ctx->window_update |= ch << 8; | |
3609 state = sw_size_4; | |
3610 break; | |
3611 | |
3612 case sw_size_4: | |
3613 ctx->window_update |= ch; | |
3614 state = sw_start; | |
3615 break; | |
3616 } | |
3617 } | |
3618 | |
3619 ctx->rest -= p - b->pos; | |
3620 ctx->frame_state = state; | |
3621 b->pos = p; | |
3622 | |
3623 if (ctx->rest > 0) { | |
3624 return NGX_AGAIN; | |
3625 } | |
3626 | |
3627 ctx->state = ngx_http_grpc_st_start; | |
3628 | |
3629 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3630 "grpc window update: %ui", ctx->window_update); | |
3631 | |
3632 if (ctx->stream_id) { | |
3633 | |
3634 if (ctx->window_update > (size_t) NGX_HTTP_V2_MAX_WINDOW | |
3635 - ctx->send_window) | |
3636 { | |
3637 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3638 "upstream sent too large window update"); | |
3639 return NGX_ERROR; | |
3640 } | |
3641 | |
3642 ctx->send_window += ctx->window_update; | |
3643 | |
3644 } else { | |
3645 | |
3646 if (ctx->window_update > NGX_HTTP_V2_MAX_WINDOW | |
3647 - ctx->connection->send_window) | |
3648 { | |
3649 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3650 "upstream sent too large window update"); | |
3651 return NGX_ERROR; | |
3652 } | |
3653 | |
3654 ctx->connection->send_window += ctx->window_update; | |
3655 } | |
3656 | |
3657 return NGX_OK; | |
3658 } | |
3659 | |
3660 | |
3661 static ngx_int_t | |
3662 ngx_http_grpc_parse_settings(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
3663 ngx_buf_t *b) | |
3664 { | |
3665 u_char ch, *p, *last; | |
3666 ssize_t window_update; | |
3667 enum { | |
3668 sw_start = 0, | |
3669 sw_id, | |
3670 sw_id_2, | |
3671 sw_value, | |
3672 sw_value_2, | |
3673 sw_value_3, | |
3674 sw_value_4 | |
3675 } state; | |
3676 | |
3677 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3678 last = b->last; | |
3679 | |
3680 } else { | |
3681 last = b->pos + ctx->rest; | |
3682 } | |
3683 | |
3684 state = ctx->frame_state; | |
3685 | |
3686 if (state == sw_start) { | |
3687 | |
3688 if (ctx->stream_id) { | |
3689 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3690 "upstream sent settings frame " | |
3691 "with non-zero stream id: %ui", | |
3692 ctx->stream_id); | |
3693 return NGX_ERROR; | |
3694 } | |
3695 | |
3696 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
3697 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3698 "grpc settings ack"); | |
3699 | |
3700 if (ctx->rest != 0) { | |
3701 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3702 "upstream sent settings frame " | |
3703 "with ack flag and non-zero length: %uz", | |
3704 ctx->rest); | |
3705 return NGX_ERROR; | |
3706 } | |
3707 | |
3708 ctx->state = ngx_http_grpc_st_start; | |
3709 | |
3710 return NGX_OK; | |
3711 } | |
3712 | |
3713 if (ctx->rest % 6 != 0) { | |
3714 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3715 "upstream sent settings frame " | |
3716 "with invalid length: %uz", | |
3717 ctx->rest); | |
3718 return NGX_ERROR; | |
3719 } | |
7379
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3720 |
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3721 if (ctx->free == NULL && ctx->settings++ > 1000) { |
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3722 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3723 "upstream sent too many settings frames"); |
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3724 return NGX_ERROR; |
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3725 } |
7233 | 3726 } |
3727 | |
3728 for (p = b->pos; p < last; p++) { | |
3729 ch = *p; | |
3730 | |
3731 #if 0 | |
3732 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3733 "grpc settings byte: %02Xd s:%d", ch, state); | |
3734 #endif | |
3735 | |
3736 switch (state) { | |
3737 | |
3738 case sw_start: | |
3739 case sw_id: | |
3740 ctx->setting_id = ch << 8; | |
3741 state = sw_id_2; | |
3742 break; | |
3743 | |
3744 case sw_id_2: | |
3745 ctx->setting_id |= ch; | |
3746 state = sw_value; | |
3747 break; | |
3748 | |
3749 case sw_value: | |
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3750 ctx->setting_value = (ngx_uint_t) ch << 24; |
7233 | 3751 state = sw_value_2; |
3752 break; | |
3753 | |
3754 case sw_value_2: | |
3755 ctx->setting_value |= ch << 16; | |
3756 state = sw_value_3; | |
3757 break; | |
3758 | |
3759 case sw_value_3: | |
3760 ctx->setting_value |= ch << 8; | |
3761 state = sw_value_4; | |
3762 break; | |
3763 | |
3764 case sw_value_4: | |
3765 ctx->setting_value |= ch; | |
3766 state = sw_id; | |
3767 | |
3768 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3769 "grpc setting: %ui %ui", | |
3770 ctx->setting_id, ctx->setting_value); | |
3771 | |
3772 /* | |
3773 * The following settings are defined by the protocol: | |
3774 * | |
3775 * SETTINGS_HEADER_TABLE_SIZE, SETTINGS_ENABLE_PUSH, | |
3776 * SETTINGS_MAX_CONCURRENT_STREAMS, SETTINGS_INITIAL_WINDOW_SIZE, | |
3777 * SETTINGS_MAX_FRAME_SIZE, SETTINGS_MAX_HEADER_LIST_SIZE | |
3778 * | |
3779 * Only SETTINGS_INITIAL_WINDOW_SIZE seems to be needed in | |
3780 * a simple client. | |
3781 */ | |
3782 | |
3783 if (ctx->setting_id == 0x04) { | |
3784 /* SETTINGS_INITIAL_WINDOW_SIZE */ | |
3785 | |
3786 if (ctx->setting_value > NGX_HTTP_V2_MAX_WINDOW) { | |
3787 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3788 "upstream sent settings frame " | |
3789 "with too large initial window size: %ui", | |
3790 ctx->setting_value); | |
3791 return NGX_ERROR; | |
3792 } | |
3793 | |
3794 window_update = ctx->setting_value | |
3795 - ctx->connection->init_window; | |
3796 ctx->connection->init_window = ctx->setting_value; | |
3797 | |
3798 if (ctx->send_window > 0 | |
3799 && window_update > (ssize_t) NGX_HTTP_V2_MAX_WINDOW | |
3800 - ctx->send_window) | |
3801 { | |
3802 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3803 "upstream sent settings frame " | |
3804 "with too large initial window size: %ui", | |
3805 ctx->setting_value); | |
3806 return NGX_ERROR; | |
3807 } | |
3808 | |
3809 ctx->send_window += window_update; | |
3810 } | |
3811 | |
3812 break; | |
3813 } | |
3814 } | |
3815 | |
3816 ctx->rest -= p - b->pos; | |
3817 ctx->frame_state = state; | |
3818 b->pos = p; | |
3819 | |
3820 if (ctx->rest > 0) { | |
3821 return NGX_AGAIN; | |
3822 } | |
3823 | |
3824 ctx->state = ngx_http_grpc_st_start; | |
3825 | |
3826 return ngx_http_grpc_send_settings_ack(r, ctx); | |
3827 } | |
3828 | |
3829 | |
3830 static ngx_int_t | |
3831 ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
3832 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
3833 { | |
3834 u_char ch, *p, *last; | |
3835 enum { | |
3836 sw_start = 0, | |
3837 sw_data_2, | |
3838 sw_data_3, | |
3839 sw_data_4, | |
3840 sw_data_5, | |
3841 sw_data_6, | |
3842 sw_data_7, | |
3843 sw_data_8 | |
3844 } state; | |
3845 | |
3846 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3847 last = b->last; | |
3848 | |
3849 } else { | |
3850 last = b->pos + ctx->rest; | |
3851 } | |
3852 | |
3853 state = ctx->frame_state; | |
3854 | |
3855 if (state == sw_start) { | |
3856 | |
3857 if (ctx->stream_id) { | |
3858 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3859 "upstream sent ping frame " | |
3860 "with non-zero stream id: %ui", | |
3861 ctx->stream_id); | |
3862 return NGX_ERROR; | |
3863 } | |
3864 | |
3865 if (ctx->rest != 8) { | |
3866 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3867 "upstream sent ping frame " | |
3868 "with invalid length: %uz", | |
3869 ctx->rest); | |
3870 return NGX_ERROR; | |
3871 } | |
3872 | |
3873 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
3874 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3875 "upstream sent ping frame with ack flag"); | |
3876 return NGX_ERROR; | |
3877 } | |
7379
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3878 |
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3879 if (ctx->free == NULL && ctx->pings++ > 1000) { |
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3880 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3881 "upstream sent too many ping frames"); |
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3882 return NGX_ERROR; |
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3883 } |
7233 | 3884 } |
3885 | |
3886 for (p = b->pos; p < last; p++) { | |
3887 ch = *p; | |
3888 | |
3889 #if 0 | |
3890 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3891 "grpc ping byte: %02Xd s:%d", ch, state); | |
3892 #endif | |
3893 | |
3894 if (state < sw_data_8) { | |
3895 ctx->ping_data[state] = ch; | |
3896 state++; | |
3897 | |
3898 } else { | |
3899 ctx->ping_data[7] = ch; | |
3900 state = sw_start; | |
3901 | |
3902 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3903 "grpc ping"); | |
3904 } | |
3905 } | |
3906 | |
3907 ctx->rest -= p - b->pos; | |
3908 ctx->frame_state = state; | |
3909 b->pos = p; | |
3910 | |
3911 if (ctx->rest > 0) { | |
3912 return NGX_AGAIN; | |
3913 } | |
3914 | |
3915 ctx->state = ngx_http_grpc_st_start; | |
3916 | |
3917 return ngx_http_grpc_send_ping_ack(r, ctx); | |
3918 } | |
3919 | |
3920 | |
3921 static ngx_int_t | |
3922 ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
3923 { | |
3924 ngx_chain_t *cl, **ll; | |
3925 ngx_http_grpc_frame_t *f; | |
3926 | |
3927 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3928 "grpc send settings ack"); | |
3929 | |
3930 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
3931 ll = &cl->next; | |
3932 } | |
3933 | |
3934 cl = ngx_http_grpc_get_buf(r, ctx); | |
3935 if (cl == NULL) { | |
3936 return NGX_ERROR; | |
3937 } | |
3938 | |
3939 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
3940 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
3941 | |
3942 f->length_0 = 0; | |
3943 f->length_1 = 0; | |
3944 f->length_2 = 0; | |
3945 f->type = NGX_HTTP_V2_SETTINGS_FRAME; | |
3946 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
3947 f->stream_id_0 = 0; | |
3948 f->stream_id_1 = 0; | |
3949 f->stream_id_2 = 0; | |
3950 f->stream_id_3 = 0; | |
3951 | |
3952 *ll = cl; | |
3953 | |
3954 return NGX_OK; | |
3955 } | |
3956 | |
3957 | |
3958 static ngx_int_t | |
3959 ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
3960 { | |
3961 ngx_chain_t *cl, **ll; | |
3962 ngx_http_grpc_frame_t *f; | |
3963 | |
3964 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3965 "grpc send ping ack"); | |
3966 | |
3967 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
3968 ll = &cl->next; | |
3969 } | |
3970 | |
3971 cl = ngx_http_grpc_get_buf(r, ctx); | |
3972 if (cl == NULL) { | |
3973 return NGX_ERROR; | |
3974 } | |
3975 | |
3976 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
3977 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
3978 | |
3979 f->length_0 = 0; | |
3980 f->length_1 = 0; | |
3981 f->length_2 = 8; | |
3982 f->type = NGX_HTTP_V2_PING_FRAME; | |
3983 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
3984 f->stream_id_0 = 0; | |
3985 f->stream_id_1 = 0; | |
3986 f->stream_id_2 = 0; | |
3987 f->stream_id_3 = 0; | |
3988 | |
3989 cl->buf->last = ngx_copy(cl->buf->last, ctx->ping_data, 8); | |
3990 | |
3991 *ll = cl; | |
3992 | |
3993 return NGX_OK; | |
3994 } | |
3995 | |
3996 | |
3997 static ngx_int_t | |
3998 ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
3999 ngx_http_grpc_ctx_t *ctx) | |
4000 { | |
4001 size_t n; | |
4002 ngx_chain_t *cl, **ll; | |
4003 ngx_http_grpc_frame_t *f; | |
4004 | |
4005 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
4006 "grpc send window update: %uz %uz", | |
4007 ctx->connection->recv_window, ctx->recv_window); | |
4008 | |
4009 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
4010 ll = &cl->next; | |
4011 } | |
4012 | |
4013 cl = ngx_http_grpc_get_buf(r, ctx); | |
4014 if (cl == NULL) { | |
4015 return NGX_ERROR; | |
4016 } | |
4017 | |
4018 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
4019 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
4020 | |
4021 f->length_0 = 0; | |
4022 f->length_1 = 0; | |
4023 f->length_2 = 4; | |
4024 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
4025 f->flags = 0; | |
4026 f->stream_id_0 = 0; | |
4027 f->stream_id_1 = 0; | |
4028 f->stream_id_2 = 0; | |
4029 f->stream_id_3 = 0; | |
4030 | |
4031 n = NGX_HTTP_V2_MAX_WINDOW - ctx->connection->recv_window; | |
4032 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4033 | |
4034 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
4035 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
4036 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
4037 *cl->buf->last++ = (u_char) (n & 0xff); | |
4038 | |
4039 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
4040 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
4041 | |
4042 f->length_0 = 0; | |
4043 f->length_1 = 0; | |
4044 f->length_2 = 4; | |
4045 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
4046 f->flags = 0; | |
4047 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
4048 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
4049 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
4050 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
4051 | |
4052 n = NGX_HTTP_V2_MAX_WINDOW - ctx->recv_window; | |
4053 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4054 | |
4055 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
4056 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
4057 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
4058 *cl->buf->last++ = (u_char) (n & 0xff); | |
4059 | |
4060 *ll = cl; | |
4061 | |
4062 return NGX_OK; | |
4063 } | |
4064 | |
4065 | |
4066 static ngx_chain_t * | |
4067 ngx_http_grpc_get_buf(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
4068 { | |
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4069 u_char *start; |
7233 | 4070 ngx_buf_t *b; |
4071 ngx_chain_t *cl; | |
4072 | |
4073 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
4074 if (cl == NULL) { | |
4075 return NULL; | |
4076 } | |
4077 | |
4078 b = cl->buf; | |
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4079 start = b->start; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
7271
diff
changeset
|
4080 |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
7271
diff
changeset
|
4081 if (start == NULL) { |
7233 | 4082 |
4083 /* | |
4084 * each buffer is large enough to hold two window update | |
4085 * frames in a row | |
4086 */ | |
4087 | |
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
7271
diff
changeset
|
4088 start = ngx_palloc(r->pool, 2 * sizeof(ngx_http_grpc_frame_t) + 8); |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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7271
diff
changeset
|
4089 if (start == NULL) { |
7233 | 4090 return NULL; |
4091 } | |
4092 | |
4093 } | |
4094 | |
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
7271
diff
changeset
|
4095 ngx_memzero(b, sizeof(ngx_buf_t)); |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4096 |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
7271
diff
changeset
|
4097 b->start = start; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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7271
diff
changeset
|
4098 b->pos = start; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
7271
diff
changeset
|
4099 b->last = start; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
7271
diff
changeset
|
4100 b->end = start + 2 * sizeof(ngx_http_grpc_frame_t) + 8; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4101 |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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7271
diff
changeset
|
4102 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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7271
diff
changeset
|
4103 b->temporary = 1; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
7271
diff
changeset
|
4104 b->flush = 1; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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diff
changeset
|
4105 |
7233 | 4106 return cl; |
4107 } | |
4108 | |
4109 | |
4110 static ngx_http_grpc_ctx_t * | |
4111 ngx_http_grpc_get_ctx(ngx_http_request_t *r) | |
4112 { | |
4113 ngx_http_grpc_ctx_t *ctx; | |
4114 ngx_http_upstream_t *u; | |
4115 | |
4116 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
4117 | |
4118 if (ctx->connection == NULL) { | |
4119 u = r->upstream; | |
4120 | |
4121 if (ngx_http_grpc_get_connection_data(r, ctx, &u->peer) != NGX_OK) { | |
4122 return NULL; | |
4123 } | |
4124 } | |
4125 | |
4126 return ctx; | |
4127 } | |
4128 | |
4129 | |
4130 static ngx_int_t | |
4131 ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
4132 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc) | |
4133 { | |
4134 ngx_connection_t *c; | |
4135 ngx_pool_cleanup_t *cln; | |
4136 | |
4137 c = pc->connection; | |
4138 | |
4139 if (pc->cached) { | |
4140 | |
4141 /* | |
4142 * for cached connections, connection data can be found | |
4143 * in the cleanup handler | |
4144 */ | |
4145 | |
4146 for (cln = c->pool->cleanup; cln; cln = cln->next) { | |
4147 if (cln->handler == ngx_http_grpc_cleanup) { | |
4148 ctx->connection = cln->data; | |
4149 break; | |
4150 } | |
4151 } | |
4152 | |
4153 if (ctx->connection == NULL) { | |
4154 ngx_log_error(NGX_LOG_ERR, c->log, 0, | |
4155 "no connection data found for " | |
4156 "keepalive http2 connection"); | |
4157 return NGX_ERROR; | |
4158 } | |
4159 | |
4160 ctx->send_window = ctx->connection->init_window; | |
4161 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4162 | |
4163 ctx->connection->last_stream_id += 2; | |
4164 ctx->id = ctx->connection->last_stream_id; | |
4165 | |
4166 return NGX_OK; | |
4167 } | |
4168 | |
4169 cln = ngx_pool_cleanup_add(c->pool, sizeof(ngx_http_grpc_conn_t)); | |
4170 if (cln == NULL) { | |
4171 return NGX_ERROR; | |
4172 } | |
4173 | |
4174 cln->handler = ngx_http_grpc_cleanup; | |
4175 ctx->connection = cln->data; | |
4176 | |
4177 ctx->connection->init_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
4178 ctx->connection->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
4179 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4180 | |
4181 ctx->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
4182 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4183 | |
4184 ctx->id = 1; | |
4185 ctx->connection->last_stream_id = 1; | |
4186 | |
4187 return NGX_OK; | |
4188 } | |
4189 | |
4190 | |
4191 static void | |
4192 ngx_http_grpc_cleanup(void *data) | |
4193 { | |
4194 #if 0 | |
4195 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
4196 "grpc cleanup"); | |
4197 #endif | |
4198 return; | |
4199 } | |
4200 | |
4201 | |
4202 static void | |
4203 ngx_http_grpc_abort_request(ngx_http_request_t *r) | |
4204 { | |
4205 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
4206 "abort grpc request"); | |
4207 return; | |
4208 } | |
4209 | |
4210 | |
4211 static void | |
4212 ngx_http_grpc_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
4213 { | |
4214 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
4215 "finalize grpc request"); | |
4216 return; | |
4217 } | |
4218 | |
4219 | |
7234
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4220 static ngx_int_t |
c693daca57f7
gRPC: special handling of the TE request header.
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parents:
7233
diff
changeset
|
4221 ngx_http_grpc_internal_trailers_variable(ngx_http_request_t *r, |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4222 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
|
4223 { |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4224 ngx_table_elt_t *te; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4225 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4226 te = r->headers_in.te; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4227 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4228 if (te == NULL) { |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4229 v->not_found = 1; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4230 return NGX_OK; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4231 } |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4232 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4233 if (ngx_strlcasestrn(te->value.data, te->value.data + te->value.len, |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4234 (u_char *) "trailers", 8 - 1) |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4235 == NULL) |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4236 { |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4237 v->not_found = 1; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4238 return NGX_OK; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4239 } |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4240 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4241 v->valid = 1; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4242 v->no_cacheable = 0; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4243 v->not_found = 0; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4244 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4245 v->data = (u_char *) "trailers"; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4246 v->len = sizeof("trailers") - 1; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4247 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4248 return NGX_OK; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4249 } |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4250 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4251 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4252 static ngx_int_t |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4253 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
|
4254 { |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4255 ngx_http_variable_t *var, *v; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4256 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4257 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
|
4258 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
|
4259 if (var == NULL) { |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4260 return NGX_ERROR; |
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4261 } |
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4262 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4263 var->get_handler = v->get_handler; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4264 var->data = v->data; |
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4265 } |
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4266 |
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4267 return NGX_OK; |
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4268 } |
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4269 |
c693daca57f7
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parents:
7233
diff
changeset
|
4270 |
7233 | 4271 static void * |
4272 ngx_http_grpc_create_loc_conf(ngx_conf_t *cf) | |
4273 { | |
4274 ngx_http_grpc_loc_conf_t *conf; | |
4275 | |
4276 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_grpc_loc_conf_t)); | |
4277 if (conf == NULL) { | |
4278 return NULL; | |
4279 } | |
4280 | |
4281 /* | |
4282 * set by ngx_pcalloc(): | |
4283 * | |
4284 * conf->upstream.ignore_headers = 0; | |
4285 * conf->upstream.next_upstream = 0; | |
4286 * conf->upstream.hide_headers_hash = { NULL, 0 }; | |
4287 * conf->upstream.ssl_name = NULL; | |
4288 * | |
4289 * conf->headers_source = NULL; | |
4290 * conf->headers.lengths = NULL; | |
4291 * conf->headers.values = NULL; | |
4292 * conf->headers.hash = { NULL, 0 }; | |
4293 * conf->host = { 0, NULL }; | |
4294 * conf->host_set = 0; | |
4295 * conf->ssl = 0; | |
4296 * conf->ssl_protocols = 0; | |
4297 * conf->ssl_ciphers = { 0, NULL }; | |
4298 * conf->ssl_trusted_certificate = { 0, NULL }; | |
4299 * conf->ssl_crl = { 0, NULL }; | |
4300 * conf->ssl_certificate = { 0, NULL }; | |
4301 * conf->ssl_certificate_key = { 0, NULL }; | |
4302 */ | |
4303 | |
4304 conf->upstream.local = NGX_CONF_UNSET_PTR; | |
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4305 conf->upstream.socket_keepalive = NGX_CONF_UNSET; |
7233 | 4306 conf->upstream.next_upstream_tries = NGX_CONF_UNSET_UINT; |
4307 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; | |
4308 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
4309 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
4310 conf->upstream.next_upstream_timeout = NGX_CONF_UNSET_MSEC; | |
4311 | |
4312 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
4313 | |
4314 conf->upstream.hide_headers = NGX_CONF_UNSET_PTR; | |
4315 conf->upstream.pass_headers = NGX_CONF_UNSET_PTR; | |
4316 | |
4317 conf->upstream.intercept_errors = NGX_CONF_UNSET; | |
4318 | |
4319 #if (NGX_HTTP_SSL) | |
4320 conf->upstream.ssl_session_reuse = NGX_CONF_UNSET; | |
4321 conf->upstream.ssl_server_name = NGX_CONF_UNSET; | |
4322 conf->upstream.ssl_verify = NGX_CONF_UNSET; | |
4323 conf->ssl_verify_depth = NGX_CONF_UNSET_UINT; | |
4324 conf->ssl_passwords = NGX_CONF_UNSET_PTR; | |
4325 #endif | |
4326 | |
4327 /* the hardcoded values */ | |
4328 conf->upstream.cyclic_temp_file = 0; | |
4329 conf->upstream.buffering = 0; | |
4330 conf->upstream.ignore_client_abort = 0; | |
4331 conf->upstream.send_lowat = 0; | |
4332 conf->upstream.bufs.num = 0; | |
4333 conf->upstream.busy_buffers_size = 0; | |
4334 conf->upstream.max_temp_file_size = 0; | |
4335 conf->upstream.temp_file_write_size = 0; | |
4336 conf->upstream.pass_request_headers = 1; | |
4337 conf->upstream.pass_request_body = 1; | |
4338 conf->upstream.force_ranges = 0; | |
4339 conf->upstream.pass_trailers = 1; | |
4340 conf->upstream.preserve_output = 1; | |
4341 | |
4342 ngx_str_set(&conf->upstream.module, "grpc"); | |
4343 | |
4344 return conf; | |
4345 } | |
4346 | |
4347 | |
4348 static char * | |
4349 ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
4350 { | |
4351 ngx_http_grpc_loc_conf_t *prev = parent; | |
4352 ngx_http_grpc_loc_conf_t *conf = child; | |
4353 | |
4354 ngx_int_t rc; | |
4355 ngx_hash_init_t hash; | |
4356 ngx_http_core_loc_conf_t *clcf; | |
4357 | |
4358 ngx_conf_merge_ptr_value(conf->upstream.local, | |
4359 prev->upstream.local, NULL); | |
4360 | |
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4361 ngx_conf_merge_value(conf->upstream.socket_keepalive, |
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4362 prev->upstream.socket_keepalive, 0); |
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4363 |
7233 | 4364 ngx_conf_merge_uint_value(conf->upstream.next_upstream_tries, |
4365 prev->upstream.next_upstream_tries, 0); | |
4366 | |
4367 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, | |
4368 prev->upstream.connect_timeout, 60000); | |
4369 | |
4370 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
4371 prev->upstream.send_timeout, 60000); | |
4372 | |
4373 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
4374 prev->upstream.read_timeout, 60000); | |
4375 | |
4376 ngx_conf_merge_msec_value(conf->upstream.next_upstream_timeout, | |
4377 prev->upstream.next_upstream_timeout, 0); | |
4378 | |
4379 ngx_conf_merge_size_value(conf->upstream.buffer_size, | |
4380 prev->upstream.buffer_size, | |
4381 (size_t) ngx_pagesize); | |
4382 | |
4383 ngx_conf_merge_bitmask_value(conf->upstream.ignore_headers, | |
4384 prev->upstream.ignore_headers, | |
4385 NGX_CONF_BITMASK_SET); | |
4386 | |
4387 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
4388 prev->upstream.next_upstream, | |
4389 (NGX_CONF_BITMASK_SET | |
4390 |NGX_HTTP_UPSTREAM_FT_ERROR | |
4391 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
4392 | |
4393 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { | |
4394 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
4395 |NGX_HTTP_UPSTREAM_FT_OFF; | |
4396 } | |
4397 | |
4398 ngx_conf_merge_value(conf->upstream.intercept_errors, | |
4399 prev->upstream.intercept_errors, 0); | |
4400 | |
4401 #if (NGX_HTTP_SSL) | |
4402 | |
4403 ngx_conf_merge_value(conf->upstream.ssl_session_reuse, | |
4404 prev->upstream.ssl_session_reuse, 1); | |
4405 | |
4406 ngx_conf_merge_bitmask_value(conf->ssl_protocols, prev->ssl_protocols, | |
4407 (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1 | |
4408 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); | |
4409 | |
4410 ngx_conf_merge_str_value(conf->ssl_ciphers, prev->ssl_ciphers, | |
4411 "DEFAULT"); | |
4412 | |
4413 if (conf->upstream.ssl_name == NULL) { | |
4414 conf->upstream.ssl_name = prev->upstream.ssl_name; | |
4415 } | |
4416 | |
4417 ngx_conf_merge_value(conf->upstream.ssl_server_name, | |
4418 prev->upstream.ssl_server_name, 0); | |
4419 ngx_conf_merge_value(conf->upstream.ssl_verify, | |
4420 prev->upstream.ssl_verify, 0); | |
4421 ngx_conf_merge_uint_value(conf->ssl_verify_depth, | |
4422 prev->ssl_verify_depth, 1); | |
4423 ngx_conf_merge_str_value(conf->ssl_trusted_certificate, | |
4424 prev->ssl_trusted_certificate, ""); | |
4425 ngx_conf_merge_str_value(conf->ssl_crl, prev->ssl_crl, ""); | |
4426 | |
4427 ngx_conf_merge_str_value(conf->ssl_certificate, | |
4428 prev->ssl_certificate, ""); | |
4429 ngx_conf_merge_str_value(conf->ssl_certificate_key, | |
4430 prev->ssl_certificate_key, ""); | |
4431 ngx_conf_merge_ptr_value(conf->ssl_passwords, prev->ssl_passwords, NULL); | |
4432 | |
4433 if (conf->ssl && ngx_http_grpc_set_ssl(cf, conf) != NGX_OK) { | |
4434 return NGX_CONF_ERROR; | |
4435 } | |
4436 | |
4437 #endif | |
4438 | |
4439 hash.max_size = 512; | |
4440 hash.bucket_size = ngx_align(64, ngx_cacheline_size); | |
4441 hash.name = "grpc_headers_hash"; | |
4442 | |
4443 if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream, | |
4444 &prev->upstream, ngx_http_grpc_hide_headers, &hash) | |
4445 != NGX_OK) | |
4446 { | |
4447 return NGX_CONF_ERROR; | |
4448 } | |
4449 | |
4450 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
4451 | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4452 if (clcf->noname |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4453 && conf->upstream.upstream == NULL && conf->grpc_lengths == NULL) |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4454 { |
7233 | 4455 conf->upstream.upstream = prev->upstream.upstream; |
4456 conf->host = prev->host; | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4457 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4458 conf->grpc_lengths = prev->grpc_lengths; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4459 conf->grpc_values = prev->grpc_values; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4460 |
7233 | 4461 #if (NGX_HTTP_SSL) |
4462 conf->upstream.ssl = prev->upstream.ssl; | |
4463 #endif | |
4464 } | |
4465 | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4466 if (clcf->lmt_excpt && clcf->handler == NULL |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4467 && (conf->upstream.upstream || conf->grpc_lengths)) |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4468 { |
7233 | 4469 clcf->handler = ngx_http_grpc_handler; |
4470 } | |
4471 | |
4472 if (conf->headers_source == NULL) { | |
4473 conf->headers = prev->headers; | |
4474 conf->headers_source = prev->headers_source; | |
4475 conf->host_set = prev->host_set; | |
4476 } | |
4477 | |
4478 rc = ngx_http_grpc_init_headers(cf, conf, &conf->headers, | |
4479 ngx_http_grpc_headers); | |
4480 if (rc != NGX_OK) { | |
4481 return NGX_CONF_ERROR; | |
4482 } | |
4483 | |
4484 /* | |
4485 * special handling to preserve conf->headers in the "http" section | |
4486 * to inherit it to all servers | |
4487 */ | |
4488 | |
4489 if (prev->headers.hash.buckets == NULL | |
4490 && conf->headers_source == prev->headers_source) | |
4491 { | |
4492 prev->headers = conf->headers; | |
4493 prev->host_set = conf->host_set; | |
4494 } | |
4495 | |
4496 return NGX_CONF_OK; | |
4497 } | |
4498 | |
4499 | |
4500 static ngx_int_t | |
4501 ngx_http_grpc_init_headers(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *conf, | |
4502 ngx_http_grpc_headers_t *headers, ngx_keyval_t *default_headers) | |
4503 { | |
4504 u_char *p; | |
4505 size_t size; | |
4506 uintptr_t *code; | |
4507 ngx_uint_t i; | |
4508 ngx_array_t headers_names, headers_merged; | |
4509 ngx_keyval_t *src, *s, *h; | |
4510 ngx_hash_key_t *hk; | |
4511 ngx_hash_init_t hash; | |
4512 ngx_http_script_compile_t sc; | |
4513 ngx_http_script_copy_code_t *copy; | |
4514 | |
4515 if (headers->hash.buckets) { | |
4516 return NGX_OK; | |
4517 } | |
4518 | |
4519 if (ngx_array_init(&headers_names, cf->temp_pool, 4, sizeof(ngx_hash_key_t)) | |
4520 != NGX_OK) | |
4521 { | |
4522 return NGX_ERROR; | |
4523 } | |
4524 | |
4525 if (ngx_array_init(&headers_merged, cf->temp_pool, 4, sizeof(ngx_keyval_t)) | |
4526 != NGX_OK) | |
4527 { | |
4528 return NGX_ERROR; | |
4529 } | |
4530 | |
4531 headers->lengths = ngx_array_create(cf->pool, 64, 1); | |
4532 if (headers->lengths == NULL) { | |
4533 return NGX_ERROR; | |
4534 } | |
4535 | |
4536 headers->values = ngx_array_create(cf->pool, 512, 1); | |
4537 if (headers->values == NULL) { | |
4538 return NGX_ERROR; | |
4539 } | |
4540 | |
4541 if (conf->headers_source) { | |
4542 | |
4543 src = conf->headers_source->elts; | |
4544 for (i = 0; i < conf->headers_source->nelts; i++) { | |
4545 | |
4546 if (src[i].key.len == 4 | |
4547 && ngx_strncasecmp(src[i].key.data, (u_char *) "Host", 4) == 0) | |
4548 { | |
4549 conf->host_set = 1; | |
4550 } | |
4551 | |
4552 s = ngx_array_push(&headers_merged); | |
4553 if (s == NULL) { | |
4554 return NGX_ERROR; | |
4555 } | |
4556 | |
4557 *s = src[i]; | |
4558 } | |
4559 } | |
4560 | |
4561 h = default_headers; | |
4562 | |
4563 while (h->key.len) { | |
4564 | |
4565 src = headers_merged.elts; | |
4566 for (i = 0; i < headers_merged.nelts; i++) { | |
4567 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) { | |
4568 goto next; | |
4569 } | |
4570 } | |
4571 | |
4572 s = ngx_array_push(&headers_merged); | |
4573 if (s == NULL) { | |
4574 return NGX_ERROR; | |
4575 } | |
4576 | |
4577 *s = *h; | |
4578 | |
4579 next: | |
4580 | |
4581 h++; | |
4582 } | |
4583 | |
4584 | |
4585 src = headers_merged.elts; | |
4586 for (i = 0; i < headers_merged.nelts; i++) { | |
4587 | |
4588 hk = ngx_array_push(&headers_names); | |
4589 if (hk == NULL) { | |
4590 return NGX_ERROR; | |
4591 } | |
4592 | |
4593 hk->key = src[i].key; | |
4594 hk->key_hash = ngx_hash_key_lc(src[i].key.data, src[i].key.len); | |
4595 hk->value = (void *) 1; | |
4596 | |
4597 if (src[i].value.len == 0) { | |
4598 continue; | |
4599 } | |
4600 | |
4601 copy = ngx_array_push_n(headers->lengths, | |
4602 sizeof(ngx_http_script_copy_code_t)); | |
4603 if (copy == NULL) { | |
4604 return NGX_ERROR; | |
4605 } | |
4606 | |
7271
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
7249
diff
changeset
|
4607 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
|
4608 ngx_http_script_copy_len_code; |
7233 | 4609 copy->len = src[i].key.len; |
4610 | |
4611 size = (sizeof(ngx_http_script_copy_code_t) | |
4612 + src[i].key.len + sizeof(uintptr_t) - 1) | |
4613 & ~(sizeof(uintptr_t) - 1); | |
4614 | |
4615 copy = ngx_array_push_n(headers->values, size); | |
4616 if (copy == NULL) { | |
4617 return NGX_ERROR; | |
4618 } | |
4619 | |
4620 copy->code = ngx_http_script_copy_code; | |
4621 copy->len = src[i].key.len; | |
4622 | |
4623 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); | |
4624 ngx_memcpy(p, src[i].key.data, src[i].key.len); | |
4625 | |
4626 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
4627 | |
4628 sc.cf = cf; | |
4629 sc.source = &src[i].value; | |
4630 sc.flushes = &headers->flushes; | |
4631 sc.lengths = &headers->lengths; | |
4632 sc.values = &headers->values; | |
4633 | |
4634 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
4635 return NGX_ERROR; | |
4636 } | |
4637 | |
4638 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
4639 if (code == NULL) { | |
4640 return NGX_ERROR; | |
4641 } | |
4642 | |
4643 *code = (uintptr_t) NULL; | |
4644 | |
4645 code = ngx_array_push_n(headers->values, sizeof(uintptr_t)); | |
4646 if (code == NULL) { | |
4647 return NGX_ERROR; | |
4648 } | |
4649 | |
4650 *code = (uintptr_t) NULL; | |
4651 } | |
4652 | |
4653 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
4654 if (code == NULL) { | |
4655 return NGX_ERROR; | |
4656 } | |
4657 | |
4658 *code = (uintptr_t) NULL; | |
4659 | |
4660 | |
4661 hash.hash = &headers->hash; | |
4662 hash.key = ngx_hash_key_lc; | |
4663 hash.max_size = 512; | |
4664 hash.bucket_size = 64; | |
4665 hash.name = "grpc_headers_hash"; | |
4666 hash.pool = cf->pool; | |
4667 hash.temp_pool = NULL; | |
4668 | |
4669 return ngx_hash_init(&hash, headers_names.elts, headers_names.nelts); | |
4670 } | |
4671 | |
4672 | |
4673 static char * | |
4674 ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
4675 { | |
4676 ngx_http_grpc_loc_conf_t *glcf = conf; | |
4677 | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4678 size_t add; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4679 ngx_str_t *value, *url; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4680 ngx_url_t u; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4681 ngx_uint_t n; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4682 ngx_http_core_loc_conf_t *clcf; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4683 ngx_http_script_compile_t sc; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4684 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4685 if (glcf->upstream.upstream || glcf->grpc_lengths) { |
7233 | 4686 return "is duplicate"; |
4687 } | |
4688 | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4689 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4690 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4691 clcf->handler = ngx_http_grpc_handler; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4692 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4693 if (clcf->name.len && clcf->name.data[clcf->name.len - 1] == '/') { |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4694 clcf->auto_redirect = 1; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4695 } |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4696 |
7233 | 4697 value = cf->args->elts; |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4698 |
7233 | 4699 url = &value[1]; |
4700 | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4701 n = ngx_http_script_variables_count(url); |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4702 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4703 if (n) { |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4704 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4705 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4706 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4707 sc.cf = cf; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4708 sc.source = url; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4709 sc.lengths = &glcf->grpc_lengths; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4710 sc.values = &glcf->grpc_values; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4711 sc.variables = n; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4712 sc.complete_lengths = 1; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4713 sc.complete_values = 1; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4714 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4715 if (ngx_http_script_compile(&sc) != NGX_OK) { |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4716 return NGX_CONF_ERROR; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4717 } |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4718 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4719 #if (NGX_HTTP_SSL) |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4720 glcf->ssl = 1; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4721 #endif |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4722 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4723 return NGX_CONF_OK; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4724 } |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4725 |
7233 | 4726 if (ngx_strncasecmp(url->data, (u_char *) "grpc://", 7) == 0) { |
4727 add = 7; | |
4728 | |
4729 } else if (ngx_strncasecmp(url->data, (u_char *) "grpcs://", 8) == 0) { | |
4730 | |
4731 #if (NGX_HTTP_SSL) | |
4732 glcf->ssl = 1; | |
4733 | |
4734 add = 8; | |
4735 #else | |
4736 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
4737 "grpcs protocol requires SSL support"); | |
4738 return NGX_CONF_ERROR; | |
4739 #endif | |
4740 | |
4741 } else { | |
4742 add = 0; | |
4743 } | |
4744 | |
4745 ngx_memzero(&u, sizeof(ngx_url_t)); | |
4746 | |
4747 u.url.len = url->len - add; | |
4748 u.url.data = url->data + add; | |
4749 u.no_resolve = 1; | |
4750 | |
4751 glcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); | |
4752 if (glcf->upstream.upstream == NULL) { | |
4753 return NGX_CONF_ERROR; | |
4754 } | |
4755 | |
4756 if (u.family != AF_UNIX) { | |
4757 | |
4758 if (u.no_port) { | |
4759 glcf->host = u.host; | |
4760 | |
4761 } else { | |
4762 glcf->host.len = u.host.len + 1 + u.port_text.len; | |
4763 glcf->host.data = u.host.data; | |
4764 } | |
4765 | |
4766 } else { | |
4767 ngx_str_set(&glcf->host, "localhost"); | |
4768 } | |
4769 | |
4770 return NGX_CONF_OK; | |
4771 } | |
4772 | |
4773 | |
4774 #if (NGX_HTTP_SSL) | |
4775 | |
4776 static char * | |
4777 ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
4778 { | |
4779 ngx_http_grpc_loc_conf_t *glcf = conf; | |
4780 | |
4781 ngx_str_t *value; | |
4782 | |
4783 if (glcf->ssl_passwords != NGX_CONF_UNSET_PTR) { | |
4784 return "is duplicate"; | |
4785 } | |
4786 | |
4787 value = cf->args->elts; | |
4788 | |
4789 glcf->ssl_passwords = ngx_ssl_read_password_file(cf, &value[1]); | |
4790 | |
4791 if (glcf->ssl_passwords == NULL) { | |
4792 return NGX_CONF_ERROR; | |
4793 } | |
4794 | |
4795 return NGX_CONF_OK; | |
4796 } | |
4797 | |
4798 | |
4799 static ngx_int_t | |
4800 ngx_http_grpc_set_ssl(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *glcf) | |
4801 { | |
4802 ngx_pool_cleanup_t *cln; | |
4803 | |
4804 glcf->upstream.ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t)); | |
4805 if (glcf->upstream.ssl == NULL) { | |
4806 return NGX_ERROR; | |
4807 } | |
4808 | |
4809 glcf->upstream.ssl->log = cf->log; | |
4810 | |
4811 if (ngx_ssl_create(glcf->upstream.ssl, glcf->ssl_protocols, NULL) | |
4812 != NGX_OK) | |
4813 { | |
4814 return NGX_ERROR; | |
4815 } | |
4816 | |
4817 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
4818 if (cln == NULL) { | |
7473
8981dbb12254
SSL: fixed potential leak on memory allocation errors.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7379
diff
changeset
|
4819 ngx_ssl_cleanup_ctx(glcf->upstream.ssl); |
7233 | 4820 return NGX_ERROR; |
4821 } | |
4822 | |
4823 cln->handler = ngx_ssl_cleanup_ctx; | |
4824 cln->data = glcf->upstream.ssl; | |
4825 | |
4826 if (glcf->ssl_certificate.len) { | |
4827 | |
4828 if (glcf->ssl_certificate_key.len == 0) { | |
4829 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
4830 "no \"grpc_ssl_certificate_key\" is defined " | |
4831 "for certificate \"%V\"", &glcf->ssl_certificate); | |
4832 return NGX_ERROR; | |
4833 } | |
4834 | |
4835 if (ngx_ssl_certificate(cf, glcf->upstream.ssl, &glcf->ssl_certificate, | |
4836 &glcf->ssl_certificate_key, glcf->ssl_passwords) | |
4837 != NGX_OK) | |
4838 { | |
4839 return NGX_ERROR; | |
4840 } | |
4841 } | |
4842 | |
4843 if (ngx_ssl_ciphers(cf, glcf->upstream.ssl, &glcf->ssl_ciphers, 0) | |
4844 != NGX_OK) | |
4845 { | |
4846 return NGX_ERROR; | |
4847 } | |
4848 | |
4849 if (glcf->upstream.ssl_verify) { | |
4850 if (glcf->ssl_trusted_certificate.len == 0) { | |
4851 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
4852 "no grpc_ssl_trusted_certificate for grpc_ssl_verify"); | |
4853 return NGX_ERROR; | |
4854 } | |
4855 | |
4856 if (ngx_ssl_trusted_certificate(cf, glcf->upstream.ssl, | |
4857 &glcf->ssl_trusted_certificate, | |
4858 glcf->ssl_verify_depth) | |
4859 != NGX_OK) | |
4860 { | |
4861 return NGX_ERROR; | |
4862 } | |
4863 | |
4864 if (ngx_ssl_crl(cf, glcf->upstream.ssl, &glcf->ssl_crl) != NGX_OK) { | |
4865 return NGX_ERROR; | |
4866 } | |
4867 } | |
4868 | |
7320
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4869 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
|
4870 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
|
4871 != NGX_OK) |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4872 { |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4873 return NGX_ERROR; |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4874 } |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4875 |
7233 | 4876 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
4877 | |
4878 if (SSL_CTX_set_alpn_protos(glcf->upstream.ssl->ctx, | |
4879 (u_char *) "\x02h2", 3) | |
4880 != 0) | |
4881 { | |
4882 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
4883 "SSL_CTX_set_alpn_protos() failed"); | |
4884 return NGX_ERROR; | |
4885 } | |
4886 | |
4887 #endif | |
4888 | |
4889 return NGX_OK; | |
4890 } | |
4891 | |
4892 #endif |