Mercurial > hg > nginx
annotate src/http/modules/ngx_http_grpc_module.c @ 7787:7ce28b4cc57e
SSL: fixed build by Sun C with old OpenSSL versions.
Sun C complains about "statement not reached" if a "return" is followed
by additional statements.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Fri, 05 Mar 2021 17:16:13 +0300 |
| parents | 88eca63261c3 |
| children | 6df9d7df2784 |
| 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 | |
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30 ngx_array_t *grpc_lengths; |
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31 ngx_array_t *grpc_values; |
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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; | |
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43 ngx_array_t *ssl_conf_commands; |
| 7233 | 44 #endif |
| 45 } ngx_http_grpc_loc_conf_t; | |
| 46 | |
| 47 | |
| 48 typedef enum { | |
| 49 ngx_http_grpc_st_start = 0, | |
| 50 ngx_http_grpc_st_length_2, | |
| 51 ngx_http_grpc_st_length_3, | |
| 52 ngx_http_grpc_st_type, | |
| 53 ngx_http_grpc_st_flags, | |
| 54 ngx_http_grpc_st_stream_id, | |
| 55 ngx_http_grpc_st_stream_id_2, | |
| 56 ngx_http_grpc_st_stream_id_3, | |
| 57 ngx_http_grpc_st_stream_id_4, | |
| 58 ngx_http_grpc_st_payload, | |
| 59 ngx_http_grpc_st_padding | |
| 60 } ngx_http_grpc_state_e; | |
| 61 | |
| 62 | |
| 63 typedef struct { | |
| 64 size_t init_window; | |
| 65 size_t send_window; | |
| 66 size_t recv_window; | |
| 67 ngx_uint_t last_stream_id; | |
| 68 } ngx_http_grpc_conn_t; | |
| 69 | |
| 70 | |
| 71 typedef struct { | |
| 72 ngx_http_grpc_state_e state; | |
| 73 ngx_uint_t frame_state; | |
| 74 ngx_uint_t fragment_state; | |
| 75 | |
| 76 ngx_chain_t *in; | |
| 77 ngx_chain_t *out; | |
| 78 ngx_chain_t *free; | |
| 79 ngx_chain_t *busy; | |
| 80 | |
| 81 ngx_http_grpc_conn_t *connection; | |
| 82 | |
| 83 ngx_uint_t id; | |
| 84 | |
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85 ngx_uint_t pings; |
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86 ngx_uint_t settings; |
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87 |
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88 off_t length; |
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89 |
| 7233 | 90 ssize_t send_window; |
| 91 size_t recv_window; | |
| 92 | |
| 93 size_t rest; | |
| 94 ngx_uint_t stream_id; | |
| 95 u_char type; | |
| 96 u_char flags; | |
| 97 u_char padding; | |
| 98 | |
| 99 ngx_uint_t error; | |
| 100 ngx_uint_t window_update; | |
| 101 | |
| 102 ngx_uint_t setting_id; | |
| 103 ngx_uint_t setting_value; | |
| 104 | |
| 105 u_char ping_data[8]; | |
| 106 | |
| 107 ngx_uint_t index; | |
| 108 ngx_str_t name; | |
| 109 ngx_str_t value; | |
| 110 | |
| 111 u_char *field_end; | |
| 112 size_t field_length; | |
| 113 size_t field_rest; | |
| 114 u_char field_state; | |
| 115 | |
| 116 unsigned literal:1; | |
| 117 unsigned field_huffman:1; | |
| 118 | |
| 119 unsigned header_sent:1; | |
| 120 unsigned output_closed:1; | |
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121 unsigned output_blocked:1; |
| 7233 | 122 unsigned parsing_headers:1; |
| 123 unsigned end_stream:1; | |
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124 unsigned done:1; |
| 7233 | 125 unsigned status:1; |
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126 unsigned rst:1; |
| 7233 | 127 |
| 128 ngx_http_request_t *request; | |
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129 |
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130 ngx_str_t host; |
| 7233 | 131 } ngx_http_grpc_ctx_t; |
| 132 | |
| 133 | |
| 134 typedef struct { | |
| 135 u_char length_0; | |
| 136 u_char length_1; | |
| 137 u_char length_2; | |
| 138 u_char type; | |
| 139 u_char flags; | |
| 140 u_char stream_id_0; | |
| 141 u_char stream_id_1; | |
| 142 u_char stream_id_2; | |
| 143 u_char stream_id_3; | |
| 144 } ngx_http_grpc_frame_t; | |
| 145 | |
| 146 | |
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147 static ngx_int_t ngx_http_grpc_eval(ngx_http_request_t *r, |
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148 ngx_http_grpc_ctx_t *ctx, ngx_http_grpc_loc_conf_t *glcf); |
| 7233 | 149 static ngx_int_t ngx_http_grpc_create_request(ngx_http_request_t *r); |
| 150 static ngx_int_t ngx_http_grpc_reinit_request(ngx_http_request_t *r); | |
| 151 static ngx_int_t ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in); | |
| 152 static ngx_int_t ngx_http_grpc_process_header(ngx_http_request_t *r); | |
| 153 static ngx_int_t ngx_http_grpc_filter_init(void *data); | |
| 154 static ngx_int_t ngx_http_grpc_filter(void *data, ssize_t bytes); | |
| 155 | |
| 156 static ngx_int_t ngx_http_grpc_parse_frame(ngx_http_request_t *r, | |
| 157 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 158 static ngx_int_t ngx_http_grpc_parse_header(ngx_http_request_t *r, | |
| 159 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 160 static ngx_int_t ngx_http_grpc_parse_fragment(ngx_http_request_t *r, | |
| 161 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 162 static ngx_int_t ngx_http_grpc_validate_header_name(ngx_http_request_t *r, | |
| 163 ngx_str_t *s); | |
| 164 static ngx_int_t ngx_http_grpc_validate_header_value(ngx_http_request_t *r, | |
| 165 ngx_str_t *s); | |
| 166 static ngx_int_t ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, | |
| 167 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 168 static ngx_int_t ngx_http_grpc_parse_goaway(ngx_http_request_t *r, | |
| 169 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 170 static ngx_int_t ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
| 171 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 172 static ngx_int_t ngx_http_grpc_parse_settings(ngx_http_request_t *r, | |
| 173 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 174 static ngx_int_t ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
| 175 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 176 | |
| 177 static ngx_int_t ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, | |
| 178 ngx_http_grpc_ctx_t *ctx); | |
| 179 static ngx_int_t ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, | |
| 180 ngx_http_grpc_ctx_t *ctx); | |
| 181 static ngx_int_t ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
| 182 ngx_http_grpc_ctx_t *ctx); | |
| 183 | |
| 184 static ngx_chain_t *ngx_http_grpc_get_buf(ngx_http_request_t *r, | |
| 185 ngx_http_grpc_ctx_t *ctx); | |
| 186 static ngx_http_grpc_ctx_t *ngx_http_grpc_get_ctx(ngx_http_request_t *r); | |
| 187 static ngx_int_t ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
| 188 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc); | |
| 189 static void ngx_http_grpc_cleanup(void *data); | |
| 190 | |
| 191 static void ngx_http_grpc_abort_request(ngx_http_request_t *r); | |
| 192 static void ngx_http_grpc_finalize_request(ngx_http_request_t *r, | |
| 193 ngx_int_t rc); | |
| 194 | |
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195 static ngx_int_t ngx_http_grpc_internal_trailers_variable( |
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196 ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); |
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197 |
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198 static ngx_int_t ngx_http_grpc_add_variables(ngx_conf_t *cf); |
| 7233 | 199 static void *ngx_http_grpc_create_loc_conf(ngx_conf_t *cf); |
| 200 static char *ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, | |
| 201 void *parent, void *child); | |
| 202 static ngx_int_t ngx_http_grpc_init_headers(ngx_conf_t *cf, | |
| 203 ngx_http_grpc_loc_conf_t *conf, ngx_http_grpc_headers_t *headers, | |
| 204 ngx_keyval_t *default_headers); | |
| 205 | |
| 206 static char *ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 207 void *conf); | |
| 208 | |
| 209 #if (NGX_HTTP_SSL) | |
| 210 static char *ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, | |
| 211 ngx_command_t *cmd, void *conf); | |
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212 static char *ngx_http_grpc_ssl_conf_command_check(ngx_conf_t *cf, void *post, |
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213 void *data); |
| 7233 | 214 static ngx_int_t ngx_http_grpc_set_ssl(ngx_conf_t *cf, |
| 215 ngx_http_grpc_loc_conf_t *glcf); | |
| 216 #endif | |
| 217 | |
| 218 | |
| 219 static ngx_conf_bitmask_t ngx_http_grpc_next_upstream_masks[] = { | |
| 220 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, | |
| 221 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, | |
| 222 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, | |
| 223 { ngx_string("non_idempotent"), NGX_HTTP_UPSTREAM_FT_NON_IDEMPOTENT }, | |
| 224 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 }, | |
| 225 { ngx_string("http_502"), NGX_HTTP_UPSTREAM_FT_HTTP_502 }, | |
| 226 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 }, | |
| 227 { ngx_string("http_504"), NGX_HTTP_UPSTREAM_FT_HTTP_504 }, | |
| 228 { ngx_string("http_403"), NGX_HTTP_UPSTREAM_FT_HTTP_403 }, | |
| 229 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, | |
| 230 { ngx_string("http_429"), NGX_HTTP_UPSTREAM_FT_HTTP_429 }, | |
| 231 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, | |
| 232 { ngx_null_string, 0 } | |
| 233 }; | |
| 234 | |
| 235 | |
| 236 #if (NGX_HTTP_SSL) | |
| 237 | |
| 238 static ngx_conf_bitmask_t ngx_http_grpc_ssl_protocols[] = { | |
| 239 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
| 240 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
| 241 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
| 242 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, | |
| 243 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, | |
| 244 { ngx_string("TLSv1.3"), NGX_SSL_TLSv1_3 }, | |
| 245 { ngx_null_string, 0 } | |
| 246 }; | |
| 247 | |
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248 static ngx_conf_post_t ngx_http_grpc_ssl_conf_command_post = |
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249 { ngx_http_grpc_ssl_conf_command_check }; |
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250 |
| 7233 | 251 #endif |
| 252 | |
| 253 | |
| 254 static ngx_command_t ngx_http_grpc_commands[] = { | |
| 255 | |
| 256 { ngx_string("grpc_pass"), | |
| 257 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
| 258 ngx_http_grpc_pass, | |
| 259 NGX_HTTP_LOC_CONF_OFFSET, | |
| 260 0, | |
| 261 NULL }, | |
| 262 | |
| 263 { ngx_string("grpc_bind"), | |
| 264 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, | |
| 265 ngx_http_upstream_bind_set_slot, | |
| 266 NGX_HTTP_LOC_CONF_OFFSET, | |
| 267 offsetof(ngx_http_grpc_loc_conf_t, upstream.local), | |
| 268 NULL }, | |
| 269 | |
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270 { ngx_string("grpc_socket_keepalive"), |
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271 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
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272 ngx_conf_set_flag_slot, |
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273 NGX_HTTP_LOC_CONF_OFFSET, |
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274 offsetof(ngx_http_grpc_loc_conf_t, upstream.socket_keepalive), |
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275 NULL }, |
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276 |
| 7233 | 277 { ngx_string("grpc_connect_timeout"), |
| 278 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 279 ngx_conf_set_msec_slot, | |
| 280 NGX_HTTP_LOC_CONF_OFFSET, | |
| 281 offsetof(ngx_http_grpc_loc_conf_t, upstream.connect_timeout), | |
| 282 NULL }, | |
| 283 | |
| 284 { ngx_string("grpc_send_timeout"), | |
| 285 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 286 ngx_conf_set_msec_slot, | |
| 287 NGX_HTTP_LOC_CONF_OFFSET, | |
| 288 offsetof(ngx_http_grpc_loc_conf_t, upstream.send_timeout), | |
| 289 NULL }, | |
| 290 | |
| 291 { ngx_string("grpc_intercept_errors"), | |
| 292 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 293 ngx_conf_set_flag_slot, | |
| 294 NGX_HTTP_LOC_CONF_OFFSET, | |
| 295 offsetof(ngx_http_grpc_loc_conf_t, upstream.intercept_errors), | |
| 296 NULL }, | |
| 297 | |
| 298 { ngx_string("grpc_buffer_size"), | |
| 299 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 300 ngx_conf_set_size_slot, | |
| 301 NGX_HTTP_LOC_CONF_OFFSET, | |
| 302 offsetof(ngx_http_grpc_loc_conf_t, upstream.buffer_size), | |
| 303 NULL }, | |
| 304 | |
| 305 { ngx_string("grpc_read_timeout"), | |
| 306 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 307 ngx_conf_set_msec_slot, | |
| 308 NGX_HTTP_LOC_CONF_OFFSET, | |
| 309 offsetof(ngx_http_grpc_loc_conf_t, upstream.read_timeout), | |
| 310 NULL }, | |
| 311 | |
| 312 { ngx_string("grpc_next_upstream"), | |
| 313 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 314 ngx_conf_set_bitmask_slot, | |
| 315 NGX_HTTP_LOC_CONF_OFFSET, | |
| 316 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream), | |
| 317 &ngx_http_grpc_next_upstream_masks }, | |
| 318 | |
| 319 { ngx_string("grpc_next_upstream_tries"), | |
| 320 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 321 ngx_conf_set_num_slot, | |
| 322 NGX_HTTP_LOC_CONF_OFFSET, | |
| 323 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_tries), | |
| 324 NULL }, | |
| 325 | |
| 326 { ngx_string("grpc_next_upstream_timeout"), | |
| 327 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 328 ngx_conf_set_msec_slot, | |
| 329 NGX_HTTP_LOC_CONF_OFFSET, | |
| 330 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_timeout), | |
| 331 NULL }, | |
| 332 | |
| 333 { ngx_string("grpc_set_header"), | |
| 334 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
| 335 ngx_conf_set_keyval_slot, | |
| 336 NGX_HTTP_LOC_CONF_OFFSET, | |
| 337 offsetof(ngx_http_grpc_loc_conf_t, headers_source), | |
| 338 NULL }, | |
| 339 | |
| 340 { ngx_string("grpc_pass_header"), | |
| 341 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 342 ngx_conf_set_str_array_slot, | |
| 343 NGX_HTTP_LOC_CONF_OFFSET, | |
| 344 offsetof(ngx_http_grpc_loc_conf_t, upstream.pass_headers), | |
| 345 NULL }, | |
| 346 | |
| 347 { ngx_string("grpc_hide_header"), | |
| 348 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 349 ngx_conf_set_str_array_slot, | |
| 350 NGX_HTTP_LOC_CONF_OFFSET, | |
| 351 offsetof(ngx_http_grpc_loc_conf_t, upstream.hide_headers), | |
| 352 NULL }, | |
| 353 | |
| 354 { ngx_string("grpc_ignore_headers"), | |
| 355 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 356 ngx_conf_set_bitmask_slot, | |
| 357 NGX_HTTP_LOC_CONF_OFFSET, | |
| 358 offsetof(ngx_http_grpc_loc_conf_t, upstream.ignore_headers), | |
| 359 &ngx_http_upstream_ignore_headers_masks }, | |
| 360 | |
| 361 #if (NGX_HTTP_SSL) | |
| 362 | |
| 363 { ngx_string("grpc_ssl_session_reuse"), | |
| 364 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 365 ngx_conf_set_flag_slot, | |
| 366 NGX_HTTP_LOC_CONF_OFFSET, | |
| 367 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_session_reuse), | |
| 368 NULL }, | |
| 369 | |
| 370 { ngx_string("grpc_ssl_protocols"), | |
| 371 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 372 ngx_conf_set_bitmask_slot, | |
| 373 NGX_HTTP_LOC_CONF_OFFSET, | |
| 374 offsetof(ngx_http_grpc_loc_conf_t, ssl_protocols), | |
| 375 &ngx_http_grpc_ssl_protocols }, | |
| 376 | |
| 377 { ngx_string("grpc_ssl_ciphers"), | |
| 378 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 379 ngx_conf_set_str_slot, | |
| 380 NGX_HTTP_LOC_CONF_OFFSET, | |
| 381 offsetof(ngx_http_grpc_loc_conf_t, ssl_ciphers), | |
| 382 NULL }, | |
| 383 | |
| 384 { ngx_string("grpc_ssl_name"), | |
| 385 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 386 ngx_http_set_complex_value_slot, | |
| 387 NGX_HTTP_LOC_CONF_OFFSET, | |
| 388 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_name), | |
| 389 NULL }, | |
| 390 | |
| 391 { ngx_string("grpc_ssl_server_name"), | |
| 392 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 393 ngx_conf_set_flag_slot, | |
| 394 NGX_HTTP_LOC_CONF_OFFSET, | |
| 395 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_server_name), | |
| 396 NULL }, | |
| 397 | |
| 398 { ngx_string("grpc_ssl_verify"), | |
| 399 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 400 ngx_conf_set_flag_slot, | |
| 401 NGX_HTTP_LOC_CONF_OFFSET, | |
| 402 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_verify), | |
| 403 NULL }, | |
| 404 | |
| 405 { ngx_string("grpc_ssl_verify_depth"), | |
| 406 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 407 ngx_conf_set_num_slot, | |
| 408 NGX_HTTP_LOC_CONF_OFFSET, | |
| 409 offsetof(ngx_http_grpc_loc_conf_t, ssl_verify_depth), | |
| 410 NULL }, | |
| 411 | |
| 412 { ngx_string("grpc_ssl_trusted_certificate"), | |
| 413 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 414 ngx_conf_set_str_slot, | |
| 415 NGX_HTTP_LOC_CONF_OFFSET, | |
| 416 offsetof(ngx_http_grpc_loc_conf_t, ssl_trusted_certificate), | |
| 417 NULL }, | |
| 418 | |
| 419 { ngx_string("grpc_ssl_crl"), | |
| 420 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 421 ngx_conf_set_str_slot, | |
| 422 NGX_HTTP_LOC_CONF_OFFSET, | |
| 423 offsetof(ngx_http_grpc_loc_conf_t, ssl_crl), | |
| 424 NULL }, | |
| 425 | |
| 426 { ngx_string("grpc_ssl_certificate"), | |
| 427 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 428 ngx_conf_set_str_slot, | |
| 429 NGX_HTTP_LOC_CONF_OFFSET, | |
| 430 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate), | |
| 431 NULL }, | |
| 432 | |
| 433 { ngx_string("grpc_ssl_certificate_key"), | |
| 434 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 435 ngx_conf_set_str_slot, | |
| 436 NGX_HTTP_LOC_CONF_OFFSET, | |
| 437 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate_key), | |
| 438 NULL }, | |
| 439 | |
| 440 { ngx_string("grpc_ssl_password_file"), | |
| 441 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 442 ngx_http_grpc_ssl_password_file, | |
| 443 NGX_HTTP_LOC_CONF_OFFSET, | |
| 444 0, | |
| 445 NULL }, | |
| 446 | |
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447 { ngx_string("grpc_ssl_conf_command"), |
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448 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, |
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449 ngx_conf_set_keyval_slot, |
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450 NGX_HTTP_LOC_CONF_OFFSET, |
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451 offsetof(ngx_http_grpc_loc_conf_t, ssl_conf_commands), |
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452 &ngx_http_grpc_ssl_conf_command_post }, |
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453 |
| 7233 | 454 #endif |
| 455 | |
| 456 ngx_null_command | |
| 457 }; | |
| 458 | |
| 459 | |
| 460 static ngx_http_module_t ngx_http_grpc_module_ctx = { | |
|
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461 ngx_http_grpc_add_variables, /* preconfiguration */ |
| 7233 | 462 NULL, /* postconfiguration */ |
| 463 | |
| 464 NULL, /* create main configuration */ | |
| 465 NULL, /* init main configuration */ | |
| 466 | |
| 467 NULL, /* create server configuration */ | |
| 468 NULL, /* merge server configuration */ | |
| 469 | |
| 470 ngx_http_grpc_create_loc_conf, /* create location configuration */ | |
| 471 ngx_http_grpc_merge_loc_conf /* merge location configuration */ | |
| 472 }; | |
| 473 | |
| 474 | |
| 475 ngx_module_t ngx_http_grpc_module = { | |
| 476 NGX_MODULE_V1, | |
| 477 &ngx_http_grpc_module_ctx, /* module context */ | |
| 478 ngx_http_grpc_commands, /* module directives */ | |
| 479 NGX_HTTP_MODULE, /* module type */ | |
| 480 NULL, /* init master */ | |
| 481 NULL, /* init module */ | |
| 482 NULL, /* init process */ | |
| 483 NULL, /* init thread */ | |
| 484 NULL, /* exit thread */ | |
| 485 NULL, /* exit process */ | |
| 486 NULL, /* exit master */ | |
| 487 NGX_MODULE_V1_PADDING | |
| 488 }; | |
| 489 | |
| 490 | |
| 491 static u_char ngx_http_grpc_connection_start[] = | |
| 492 "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" /* connection preface */ | |
| 493 | |
| 494 "\x00\x00\x12\x04\x00\x00\x00\x00\x00" /* settings frame */ | |
| 495 "\x00\x01\x00\x00\x00\x00" /* header table size */ | |
| 496 "\x00\x02\x00\x00\x00\x00" /* disable push */ | |
| 497 "\x00\x04\x7f\xff\xff\xff" /* initial window */ | |
| 498 | |
| 499 "\x00\x00\x04\x08\x00\x00\x00\x00\x00" /* window update frame */ | |
| 500 "\x7f\xff\x00\x00"; | |
| 501 | |
| 502 | |
| 503 static ngx_keyval_t ngx_http_grpc_headers[] = { | |
| 504 { ngx_string("Content-Length"), ngx_string("$content_length") }, | |
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505 { ngx_string("TE"), ngx_string("$grpc_internal_trailers") }, |
| 7233 | 506 { ngx_string("Host"), ngx_string("") }, |
| 507 { ngx_string("Connection"), ngx_string("") }, | |
| 508 { ngx_string("Transfer-Encoding"), ngx_string("") }, | |
| 509 { ngx_string("Keep-Alive"), ngx_string("") }, | |
| 510 { ngx_string("Expect"), ngx_string("") }, | |
| 511 { ngx_string("Upgrade"), ngx_string("") }, | |
| 512 { ngx_null_string, ngx_null_string } | |
| 513 }; | |
| 514 | |
| 515 | |
| 516 static ngx_str_t ngx_http_grpc_hide_headers[] = { | |
| 517 ngx_string("Date"), | |
| 518 ngx_string("Server"), | |
| 519 ngx_string("X-Accel-Expires"), | |
| 520 ngx_string("X-Accel-Redirect"), | |
| 521 ngx_string("X-Accel-Limit-Rate"), | |
| 522 ngx_string("X-Accel-Buffering"), | |
| 523 ngx_string("X-Accel-Charset"), | |
| 524 ngx_null_string | |
| 525 }; | |
| 526 | |
| 527 | |
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528 static ngx_http_variable_t ngx_http_grpc_vars[] = { |
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529 |
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530 { ngx_string("grpc_internal_trailers"), NULL, |
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531 ngx_http_grpc_internal_trailers_variable, 0, |
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532 NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, |
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533 |
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534 ngx_http_null_variable |
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535 }; |
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536 |
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537 |
| 7233 | 538 static ngx_int_t |
| 539 ngx_http_grpc_handler(ngx_http_request_t *r) | |
| 540 { | |
| 541 ngx_int_t rc; | |
| 542 ngx_http_upstream_t *u; | |
| 543 ngx_http_grpc_ctx_t *ctx; | |
| 544 ngx_http_grpc_loc_conf_t *glcf; | |
| 545 | |
| 546 if (ngx_http_upstream_create(r) != NGX_OK) { | |
| 547 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 548 } | |
| 549 | |
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550 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_grpc_ctx_t)); |
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551 if (ctx == NULL) { |
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552 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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553 } |
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554 |
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555 ctx->request = r; |
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556 |
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557 ngx_http_set_ctx(r, ctx, ngx_http_grpc_module); |
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558 |
| 7233 | 559 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); |
| 560 | |
| 561 u = r->upstream; | |
| 562 | |
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563 if (glcf->grpc_lengths == NULL) { |
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564 ctx->host = glcf->host; |
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565 |
| 7233 | 566 #if (NGX_HTTP_SSL) |
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567 u->ssl = (glcf->upstream.ssl != NULL); |
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568 |
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569 if (u->ssl) { |
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570 ngx_str_set(&u->schema, "grpcs://"); |
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571 |
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572 } else { |
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573 ngx_str_set(&u->schema, "grpc://"); |
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574 } |
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575 #else |
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576 ngx_str_set(&u->schema, "grpc://"); |
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577 #endif |
| 7233 | 578 |
| 579 } else { | |
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580 if (ngx_http_grpc_eval(r, ctx, glcf) != NGX_OK) { |
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581 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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582 } |
| 7233 | 583 } |
| 584 | |
| 585 u->output.tag = (ngx_buf_tag_t) &ngx_http_grpc_module; | |
| 586 | |
| 587 u->conf = &glcf->upstream; | |
| 588 | |
| 589 u->create_request = ngx_http_grpc_create_request; | |
| 590 u->reinit_request = ngx_http_grpc_reinit_request; | |
| 591 u->process_header = ngx_http_grpc_process_header; | |
| 592 u->abort_request = ngx_http_grpc_abort_request; | |
| 593 u->finalize_request = ngx_http_grpc_finalize_request; | |
| 594 | |
| 595 u->input_filter_init = ngx_http_grpc_filter_init; | |
| 596 u->input_filter = ngx_http_grpc_filter; | |
| 597 u->input_filter_ctx = ctx; | |
| 598 | |
| 599 r->request_body_no_buffering = 1; | |
| 600 | |
| 601 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init); | |
| 602 | |
| 603 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { | |
| 604 return rc; | |
| 605 } | |
| 606 | |
| 607 return NGX_DONE; | |
| 608 } | |
| 609 | |
| 610 | |
| 611 static ngx_int_t | |
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612 ngx_http_grpc_eval(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, |
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613 ngx_http_grpc_loc_conf_t *glcf) |
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614 { |
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615 size_t add; |
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616 ngx_url_t url; |
|
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617 ngx_http_upstream_t *u; |
|
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618 |
|
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619 ngx_memzero(&url, sizeof(ngx_url_t)); |
|
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620 |
|
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621 if (ngx_http_script_run(r, &url.url, glcf->grpc_lengths->elts, 0, |
|
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622 glcf->grpc_values->elts) |
|
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623 == NULL) |
|
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624 { |
|
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625 return NGX_ERROR; |
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626 } |
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|
627 |
|
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628 if (url.url.len > 7 |
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629 && ngx_strncasecmp(url.url.data, (u_char *) "grpc://", 7) == 0) |
|
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630 { |
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631 add = 7; |
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632 |
|
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633 } else if (url.url.len > 8 |
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634 && ngx_strncasecmp(url.url.data, (u_char *) "grpcs://", 8) == 0) |
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635 { |
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636 |
|
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637 #if (NGX_HTTP_SSL) |
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638 add = 8; |
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639 r->upstream->ssl = 1; |
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640 #else |
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641 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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642 "grpcs protocol requires SSL support"); |
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643 return NGX_ERROR; |
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644 #endif |
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645 |
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646 } else { |
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647 add = 0; |
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648 } |
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|
649 |
|
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650 u = r->upstream; |
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|
651 |
|
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652 if (add) { |
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653 u->schema.len = add; |
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654 u->schema.data = url.url.data; |
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655 |
|
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656 url.url.data += add; |
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657 url.url.len -= add; |
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|
658 |
|
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659 } else { |
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660 ngx_str_set(&u->schema, "grpc://"); |
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661 } |
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662 |
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663 url.no_resolve = 1; |
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664 |
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665 if (ngx_parse_url(r->pool, &url) != NGX_OK) { |
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666 if (url.err) { |
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667 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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668 "%s in upstream \"%V\"", url.err, &url.url); |
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669 } |
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670 |
|
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671 return NGX_ERROR; |
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672 } |
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|
673 |
|
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674 u->resolved = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_resolved_t)); |
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675 if (u->resolved == NULL) { |
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676 return NGX_ERROR; |
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677 } |
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|
678 |
|
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679 if (url.addrs) { |
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680 u->resolved->sockaddr = url.addrs[0].sockaddr; |
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681 u->resolved->socklen = url.addrs[0].socklen; |
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682 u->resolved->name = url.addrs[0].name; |
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683 u->resolved->naddrs = 1; |
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684 } |
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|
685 |
|
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686 u->resolved->host = url.host; |
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687 u->resolved->port = url.port; |
|
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688 u->resolved->no_port = url.no_port; |
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|
689 |
|
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690 if (url.family != AF_UNIX) { |
|
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|
691 |
|
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|
692 if (url.no_port) { |
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693 ctx->host = url.host; |
|
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|
694 |
|
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695 } else { |
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696 ctx->host.len = url.host.len + 1 + url.port_text.len; |
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697 ctx->host.data = url.host.data; |
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698 } |
|
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|
699 |
|
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700 } else { |
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701 ngx_str_set(&ctx->host, "localhost"); |
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702 } |
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|
703 |
|
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|
704 return NGX_OK; |
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705 } |
|
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|
706 |
|
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|
707 |
|
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|
708 static ngx_int_t |
| 7233 | 709 ngx_http_grpc_create_request(ngx_http_request_t *r) |
| 710 { | |
| 711 u_char *p, *tmp, *key_tmp, *val_tmp, *headers_frame; | |
| 712 size_t len, tmp_len, key_len, val_len, uri_len; | |
| 713 uintptr_t escape; | |
| 714 ngx_buf_t *b; | |
| 715 ngx_uint_t i, next; | |
| 716 ngx_chain_t *cl, *body; | |
| 717 ngx_list_part_t *part; | |
| 718 ngx_table_elt_t *header; | |
|
7619
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719 ngx_http_grpc_ctx_t *ctx; |
| 7233 | 720 ngx_http_upstream_t *u; |
| 721 ngx_http_grpc_frame_t *f; | |
| 722 ngx_http_script_code_pt code; | |
| 723 ngx_http_grpc_loc_conf_t *glcf; | |
| 724 ngx_http_script_engine_t e, le; | |
| 725 ngx_http_script_len_code_pt lcode; | |
| 726 | |
| 727 u = r->upstream; | |
| 728 | |
| 729 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); | |
| 730 | |
|
7619
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731 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); |
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732 |
| 7233 | 733 len = sizeof(ngx_http_grpc_connection_start) - 1 |
| 734 + sizeof(ngx_http_grpc_frame_t); /* headers frame */ | |
| 735 | |
| 736 /* :method header */ | |
| 737 | |
| 738 if (r->method == NGX_HTTP_GET || r->method == NGX_HTTP_POST) { | |
| 739 len += 1; | |
| 740 tmp_len = 0; | |
| 741 | |
| 742 } else { | |
| 743 len += 1 + NGX_HTTP_V2_INT_OCTETS + r->method_name.len; | |
| 744 tmp_len = r->method_name.len; | |
| 745 } | |
| 746 | |
| 747 /* :scheme header */ | |
| 748 | |
| 749 len += 1; | |
| 750 | |
| 751 /* :path header */ | |
| 752 | |
| 753 if (r->valid_unparsed_uri) { | |
| 754 escape = 0; | |
| 755 uri_len = r->unparsed_uri.len; | |
| 756 | |
| 757 } else { | |
| 758 escape = 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len, | |
| 759 NGX_ESCAPE_URI); | |
| 760 uri_len = r->uri.len + escape + sizeof("?") - 1 + r->args.len; | |
| 761 } | |
| 762 | |
| 763 len += 1 + NGX_HTTP_V2_INT_OCTETS + uri_len; | |
| 764 | |
| 765 if (tmp_len < uri_len) { | |
| 766 tmp_len = uri_len; | |
| 767 } | |
| 768 | |
| 769 /* :authority header */ | |
| 770 | |
| 771 if (!glcf->host_set) { | |
|
7619
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772 len += 1 + NGX_HTTP_V2_INT_OCTETS + ctx->host.len; |
|
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|
773 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
774 if (tmp_len < ctx->host.len) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
775 tmp_len = ctx->host.len; |
| 7233 | 776 } |
| 777 } | |
| 778 | |
| 779 /* other headers */ | |
| 780 | |
| 781 ngx_http_script_flush_no_cacheable_variables(r, glcf->headers.flushes); | |
| 782 ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); | |
| 783 | |
| 784 le.ip = glcf->headers.lengths->elts; | |
| 785 le.request = r; | |
| 786 le.flushed = 1; | |
| 787 | |
| 788 while (*(uintptr_t *) le.ip) { | |
| 789 | |
| 790 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 791 key_len = lcode(&le); | |
| 792 | |
| 793 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
| 794 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 795 } | |
| 796 le.ip += sizeof(uintptr_t); | |
| 797 | |
| 798 if (val_len == 0) { | |
| 799 continue; | |
| 800 } | |
| 801 | |
| 802 len += 1 + NGX_HTTP_V2_INT_OCTETS + key_len | |
| 803 + NGX_HTTP_V2_INT_OCTETS + val_len; | |
| 804 | |
| 805 if (tmp_len < key_len) { | |
| 806 tmp_len = key_len; | |
| 807 } | |
| 808 | |
| 809 if (tmp_len < val_len) { | |
| 810 tmp_len = val_len; | |
| 811 } | |
| 812 } | |
| 813 | |
| 814 if (glcf->upstream.pass_request_headers) { | |
| 815 part = &r->headers_in.headers.part; | |
| 816 header = part->elts; | |
| 817 | |
| 818 for (i = 0; /* void */; i++) { | |
| 819 | |
| 820 if (i >= part->nelts) { | |
| 821 if (part->next == NULL) { | |
| 822 break; | |
| 823 } | |
| 824 | |
| 825 part = part->next; | |
| 826 header = part->elts; | |
| 827 i = 0; | |
| 828 } | |
| 829 | |
| 830 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
| 831 header[i].lowcase_key, header[i].key.len)) | |
| 832 { | |
| 833 continue; | |
| 834 } | |
| 835 | |
| 836 len += 1 + NGX_HTTP_V2_INT_OCTETS + header[i].key.len | |
| 837 + NGX_HTTP_V2_INT_OCTETS + header[i].value.len; | |
| 838 | |
| 839 if (tmp_len < header[i].key.len) { | |
| 840 tmp_len = header[i].key.len; | |
| 841 } | |
| 842 | |
| 843 if (tmp_len < header[i].value.len) { | |
| 844 tmp_len = header[i].value.len; | |
| 845 } | |
| 846 } | |
| 847 } | |
| 848 | |
| 849 /* continuation frames */ | |
| 850 | |
| 851 len += sizeof(ngx_http_grpc_frame_t) | |
| 852 * (len / NGX_HTTP_V2_DEFAULT_FRAME_SIZE); | |
| 853 | |
| 854 | |
| 855 b = ngx_create_temp_buf(r->pool, len); | |
| 856 if (b == NULL) { | |
| 857 return NGX_ERROR; | |
| 858 } | |
| 859 | |
| 860 cl = ngx_alloc_chain_link(r->pool); | |
| 861 if (cl == NULL) { | |
| 862 return NGX_ERROR; | |
| 863 } | |
| 864 | |
| 865 cl->buf = b; | |
| 866 cl->next = NULL; | |
| 867 | |
| 868 tmp = ngx_palloc(r->pool, tmp_len * 3); | |
| 869 if (tmp == NULL) { | |
| 870 return NGX_ERROR; | |
| 871 } | |
| 872 | |
| 873 key_tmp = tmp + tmp_len; | |
| 874 val_tmp = tmp + 2 * tmp_len; | |
| 875 | |
| 876 /* connection preface */ | |
| 877 | |
| 878 b->last = ngx_copy(b->last, ngx_http_grpc_connection_start, | |
| 879 sizeof(ngx_http_grpc_connection_start) - 1); | |
| 880 | |
| 881 /* headers frame */ | |
| 882 | |
| 883 headers_frame = b->last; | |
| 884 | |
| 885 f = (ngx_http_grpc_frame_t *) b->last; | |
| 886 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 887 | |
| 888 f->length_0 = 0; | |
| 889 f->length_1 = 0; | |
| 890 f->length_2 = 0; | |
| 891 f->type = NGX_HTTP_V2_HEADERS_FRAME; | |
| 892 f->flags = 0; | |
| 893 f->stream_id_0 = 0; | |
| 894 f->stream_id_1 = 0; | |
| 895 f->stream_id_2 = 0; | |
| 896 f->stream_id_3 = 1; | |
| 897 | |
| 898 if (r->method == NGX_HTTP_GET) { | |
| 899 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_GET_INDEX); | |
| 900 | |
| 901 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 902 "grpc header: \":method: GET\""); | |
| 903 | |
| 904 } else if (r->method == NGX_HTTP_POST) { | |
| 905 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_POST_INDEX); | |
| 906 | |
| 907 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 908 "grpc header: \":method: POST\""); | |
| 909 | |
| 910 } else { | |
| 911 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_METHOD_INDEX); | |
| 912 b->last = ngx_http_v2_write_value(b->last, r->method_name.data, | |
| 913 r->method_name.len, tmp); | |
| 914 | |
| 915 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 916 "grpc header: \":method: %V\"", &r->method_name); | |
| 917 } | |
| 918 | |
| 919 #if (NGX_HTTP_SSL) | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
920 if (u->ssl) { |
| 7233 | 921 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTPS_INDEX); |
| 922 | |
| 923 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 924 "grpc header: \":scheme: https\""); | |
| 925 } else | |
| 926 #endif | |
| 927 { | |
| 928 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTP_INDEX); | |
| 929 | |
| 930 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 931 "grpc header: \":scheme: http\""); | |
| 932 } | |
| 933 | |
| 934 if (r->valid_unparsed_uri) { | |
| 935 | |
| 936 if (r->unparsed_uri.len == 1 && r->unparsed_uri.data[0] == '/') { | |
| 937 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_PATH_ROOT_INDEX); | |
| 938 | |
| 939 } else { | |
| 940 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 941 b->last = ngx_http_v2_write_value(b->last, r->unparsed_uri.data, | |
| 942 r->unparsed_uri.len, tmp); | |
| 943 } | |
| 944 | |
| 945 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 946 "grpc header: \":path: %V\"", &r->unparsed_uri); | |
| 947 | |
| 948 } else if (escape || r->args.len > 0) { | |
| 949 p = val_tmp; | |
| 950 | |
| 951 if (escape) { | |
| 952 p = (u_char *) ngx_escape_uri(p, r->uri.data, r->uri.len, | |
| 953 NGX_ESCAPE_URI); | |
| 954 | |
| 955 } else { | |
| 956 p = ngx_copy(p, r->uri.data, r->uri.len); | |
| 957 } | |
| 958 | |
| 959 if (r->args.len > 0) { | |
| 960 *p++ = '?'; | |
| 961 p = ngx_copy(p, r->args.data, r->args.len); | |
| 962 } | |
| 963 | |
| 964 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 965 b->last = ngx_http_v2_write_value(b->last, val_tmp, p - val_tmp, tmp); | |
| 966 | |
| 967 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 968 "grpc header: \":path: %*s\"", p - val_tmp, val_tmp); | |
| 969 | |
| 970 } else { | |
| 971 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 972 b->last = ngx_http_v2_write_value(b->last, r->uri.data, | |
| 973 r->uri.len, tmp); | |
| 974 | |
| 975 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 976 "grpc header: \":path: %V\"", &r->uri); | |
| 977 } | |
| 978 | |
| 979 if (!glcf->host_set) { | |
| 980 *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
|
981 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
|
982 ctx->host.len, tmp); |
| 7233 | 983 |
| 984 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
|
985 "grpc header: \":authority: %V\"", &ctx->host); |
| 7233 | 986 } |
| 987 | |
| 988 ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); | |
| 989 | |
| 990 e.ip = glcf->headers.values->elts; | |
| 991 e.request = r; | |
| 992 e.flushed = 1; | |
| 993 | |
| 994 le.ip = glcf->headers.lengths->elts; | |
| 995 | |
| 996 while (*(uintptr_t *) le.ip) { | |
| 997 | |
| 998 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 999 key_len = lcode(&le); | |
| 1000 | |
| 1001 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
| 1002 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 1003 } | |
| 1004 le.ip += sizeof(uintptr_t); | |
| 1005 | |
| 1006 if (val_len == 0) { | |
| 1007 e.skip = 1; | |
| 1008 | |
| 1009 while (*(uintptr_t *) e.ip) { | |
| 1010 code = *(ngx_http_script_code_pt *) e.ip; | |
| 1011 code((ngx_http_script_engine_t *) &e); | |
| 1012 } | |
| 1013 e.ip += sizeof(uintptr_t); | |
| 1014 | |
| 1015 e.skip = 0; | |
| 1016 | |
| 1017 continue; | |
| 1018 } | |
| 1019 | |
| 1020 *b->last++ = 0; | |
| 1021 | |
| 1022 e.pos = key_tmp; | |
| 1023 | |
| 1024 code = *(ngx_http_script_code_pt *) e.ip; | |
| 1025 code((ngx_http_script_engine_t *) &e); | |
| 1026 | |
| 1027 b->last = ngx_http_v2_write_name(b->last, key_tmp, key_len, tmp); | |
| 1028 | |
| 1029 e.pos = val_tmp; | |
| 1030 | |
| 1031 while (*(uintptr_t *) e.ip) { | |
| 1032 code = *(ngx_http_script_code_pt *) e.ip; | |
| 1033 code((ngx_http_script_engine_t *) &e); | |
| 1034 } | |
| 1035 e.ip += sizeof(uintptr_t); | |
| 1036 | |
| 1037 b->last = ngx_http_v2_write_value(b->last, val_tmp, val_len, tmp); | |
| 1038 | |
| 1039 #if (NGX_DEBUG) | |
| 1040 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1041 ngx_strlow(key_tmp, key_tmp, key_len); | |
| 1042 | |
| 1043 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1044 "grpc header: \"%*s: %*s\"", | |
| 1045 key_len, key_tmp, val_len, val_tmp); | |
| 1046 } | |
| 1047 #endif | |
| 1048 } | |
| 1049 | |
| 1050 if (glcf->upstream.pass_request_headers) { | |
| 1051 part = &r->headers_in.headers.part; | |
| 1052 header = part->elts; | |
| 1053 | |
| 1054 for (i = 0; /* void */; i++) { | |
| 1055 | |
| 1056 if (i >= part->nelts) { | |
| 1057 if (part->next == NULL) { | |
| 1058 break; | |
| 1059 } | |
| 1060 | |
| 1061 part = part->next; | |
| 1062 header = part->elts; | |
| 1063 i = 0; | |
| 1064 } | |
| 1065 | |
| 1066 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
| 1067 header[i].lowcase_key, header[i].key.len)) | |
| 1068 { | |
| 1069 continue; | |
| 1070 } | |
| 1071 | |
| 1072 *b->last++ = 0; | |
| 1073 | |
| 1074 b->last = ngx_http_v2_write_name(b->last, header[i].key.data, | |
| 1075 header[i].key.len, tmp); | |
| 1076 | |
| 1077 b->last = ngx_http_v2_write_value(b->last, header[i].value.data, | |
| 1078 header[i].value.len, tmp); | |
| 1079 | |
| 1080 #if (NGX_DEBUG) | |
| 1081 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1082 ngx_strlow(tmp, header[i].key.data, header[i].key.len); | |
| 1083 | |
| 1084 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1085 "grpc header: \"%*s: %V\"", | |
| 1086 header[i].key.len, tmp, &header[i].value); | |
| 1087 } | |
| 1088 #endif | |
| 1089 } | |
| 1090 } | |
| 1091 | |
| 1092 /* update headers frame length */ | |
| 1093 | |
| 1094 len = b->last - headers_frame - sizeof(ngx_http_grpc_frame_t); | |
| 1095 | |
| 1096 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 1097 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1098 next = 1; | |
| 1099 | |
| 1100 } else { | |
| 1101 next = 0; | |
| 1102 } | |
| 1103 | |
| 1104 f = (ngx_http_grpc_frame_t *) headers_frame; | |
| 1105 | |
| 1106 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1107 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1108 f->length_2 = (u_char) (len & 0xff); | |
| 1109 | |
| 1110 /* create additional continuation frames */ | |
| 1111 | |
| 1112 p = headers_frame; | |
| 1113 | |
| 1114 while (next) { | |
| 1115 p += sizeof(ngx_http_grpc_frame_t) + NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1116 len = b->last - p; | |
| 1117 | |
| 1118 ngx_memmove(p + sizeof(ngx_http_grpc_frame_t), p, len); | |
| 1119 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1120 | |
| 1121 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 1122 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1123 next = 1; | |
| 1124 | |
| 1125 } else { | |
| 1126 next = 0; | |
| 1127 } | |
| 1128 | |
| 1129 f = (ngx_http_grpc_frame_t *) p; | |
| 1130 | |
| 1131 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1132 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1133 f->length_2 = (u_char) (len & 0xff); | |
| 1134 f->type = NGX_HTTP_V2_CONTINUATION_FRAME; | |
| 1135 f->flags = 0; | |
| 1136 f->stream_id_0 = 0; | |
| 1137 f->stream_id_1 = 0; | |
| 1138 f->stream_id_2 = 0; | |
| 1139 f->stream_id_3 = 1; | |
| 1140 } | |
| 1141 | |
| 1142 f->flags |= NGX_HTTP_V2_END_HEADERS_FLAG; | |
| 1143 | |
|
7736
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1144 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
|
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1145 "grpc header: %*xs%s, len: %uz", |
|
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1146 (size_t) ngx_min(b->last - b->pos, 256), b->pos, |
|
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1147 b->last - b->pos > 256 ? "..." : "", |
|
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1148 b->last - b->pos); |
| 7233 | 1149 |
| 1150 if (r->request_body_no_buffering) { | |
| 1151 | |
| 1152 u->request_bufs = cl; | |
| 1153 | |
| 1154 } else { | |
| 1155 | |
| 1156 body = u->request_bufs; | |
| 1157 u->request_bufs = cl; | |
| 1158 | |
| 1159 if (body == NULL) { | |
| 1160 f = (ngx_http_grpc_frame_t *) headers_frame; | |
| 1161 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1162 } | |
| 1163 | |
| 1164 while (body) { | |
| 1165 b = ngx_alloc_buf(r->pool); | |
| 1166 if (b == NULL) { | |
| 1167 return NGX_ERROR; | |
| 1168 } | |
| 1169 | |
| 1170 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t)); | |
| 1171 | |
| 1172 cl->next = ngx_alloc_chain_link(r->pool); | |
| 1173 if (cl->next == NULL) { | |
| 1174 return NGX_ERROR; | |
| 1175 } | |
| 1176 | |
| 1177 cl = cl->next; | |
| 1178 cl->buf = b; | |
| 1179 | |
| 1180 body = body->next; | |
| 1181 } | |
| 1182 | |
| 1183 b->last_buf = 1; | |
| 1184 } | |
| 1185 | |
| 1186 u->output.output_filter = ngx_http_grpc_body_output_filter; | |
| 1187 u->output.filter_ctx = r; | |
| 1188 | |
| 1189 b->flush = 1; | |
| 1190 cl->next = NULL; | |
| 1191 | |
| 1192 return NGX_OK; | |
| 1193 } | |
| 1194 | |
| 1195 | |
| 1196 static ngx_int_t | |
| 1197 ngx_http_grpc_reinit_request(ngx_http_request_t *r) | |
| 1198 { | |
| 1199 ngx_http_grpc_ctx_t *ctx; | |
| 1200 | |
| 1201 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
| 1202 | |
| 1203 if (ctx == NULL) { | |
| 1204 return NGX_OK; | |
| 1205 } | |
| 1206 | |
| 1207 ctx->state = 0; | |
| 1208 ctx->header_sent = 0; | |
| 1209 ctx->output_closed = 0; | |
|
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1210 ctx->output_blocked = 0; |
| 7233 | 1211 ctx->parsing_headers = 0; |
| 1212 ctx->end_stream = 0; | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1213 ctx->done = 0; |
| 7233 | 1214 ctx->status = 0; |
|
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
1215 ctx->rst = 0; |
| 7233 | 1216 ctx->connection = NULL; |
| 1217 | |
| 1218 return NGX_OK; | |
| 1219 } | |
| 1220 | |
| 1221 | |
| 1222 static ngx_int_t | |
| 1223 ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in) | |
| 1224 { | |
| 1225 ngx_http_request_t *r = data; | |
| 1226 | |
| 1227 off_t file_pos; | |
| 1228 u_char *p, *pos, *start; | |
| 1229 size_t len, limit; | |
| 1230 ngx_buf_t *b; | |
| 1231 ngx_int_t rc; | |
| 1232 ngx_uint_t next, last; | |
| 1233 ngx_chain_t *cl, *out, **ll; | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1234 ngx_http_upstream_t *u; |
| 7233 | 1235 ngx_http_grpc_ctx_t *ctx; |
| 1236 ngx_http_grpc_frame_t *f; | |
| 1237 | |
| 1238 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1239 "grpc output filter"); | |
| 1240 | |
| 1241 ctx = ngx_http_grpc_get_ctx(r); | |
| 1242 | |
| 1243 if (ctx == NULL) { | |
| 1244 return NGX_ERROR; | |
| 1245 } | |
| 1246 | |
| 1247 if (in) { | |
| 1248 if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) { | |
| 1249 return NGX_ERROR; | |
| 1250 } | |
| 1251 } | |
| 1252 | |
| 1253 out = NULL; | |
| 1254 ll = &out; | |
| 1255 | |
| 1256 if (!ctx->header_sent) { | |
| 1257 /* first buffer contains headers */ | |
| 1258 | |
| 1259 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1260 "grpc output header"); | |
| 1261 | |
| 1262 ctx->header_sent = 1; | |
| 1263 | |
| 1264 if (ctx->id != 1) { | |
| 1265 /* | |
| 1266 * keepalive connection: skip connection preface, | |
| 1267 * update stream identifiers | |
| 1268 */ | |
| 1269 | |
| 1270 b = ctx->in->buf; | |
| 1271 b->pos += sizeof(ngx_http_grpc_connection_start) - 1; | |
| 1272 | |
| 1273 p = b->pos; | |
| 1274 | |
| 1275 while (p < b->last) { | |
| 1276 f = (ngx_http_grpc_frame_t *) p; | |
| 1277 p += sizeof(ngx_http_grpc_frame_t); | |
| 1278 | |
| 1279 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1280 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1281 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1282 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1283 | |
| 1284 p += (f->length_0 << 16) + (f->length_1 << 8) + f->length_2; | |
| 1285 } | |
| 1286 } | |
| 1287 | |
| 1288 if (ctx->in->buf->last_buf) { | |
| 1289 ctx->output_closed = 1; | |
| 1290 } | |
| 1291 | |
| 1292 *ll = ctx->in; | |
| 1293 ll = &ctx->in->next; | |
| 1294 | |
| 1295 ctx->in = ctx->in->next; | |
| 1296 } | |
| 1297 | |
| 1298 if (ctx->out) { | |
| 1299 /* queued control frames */ | |
| 1300 | |
| 1301 *ll = ctx->out; | |
| 1302 | |
| 1303 for (cl = ctx->out, ll = &cl->next; cl; cl = cl->next) { | |
| 1304 ll = &cl->next; | |
| 1305 } | |
| 1306 | |
| 1307 ctx->out = NULL; | |
| 1308 } | |
| 1309 | |
| 1310 f = NULL; | |
| 1311 last = 0; | |
| 1312 | |
| 1313 limit = ngx_max(0, ctx->send_window); | |
| 1314 | |
| 1315 if (limit > ctx->connection->send_window) { | |
| 1316 limit = ctx->connection->send_window; | |
| 1317 } | |
| 1318 | |
| 1319 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1320 "grpc output limit: %uz w:%z:%uz", | |
| 1321 limit, ctx->send_window, ctx->connection->send_window); | |
| 1322 | |
| 1323 #if (NGX_SUPPRESS_WARN) | |
| 1324 file_pos = 0; | |
| 1325 pos = NULL; | |
| 1326 cl = NULL; | |
| 1327 #endif | |
| 1328 | |
| 1329 in = ctx->in; | |
| 1330 | |
| 1331 while (in && limit > 0) { | |
| 1332 | |
| 1333 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
| 1334 "grpc output in l:%d f:%d %p, pos %p, size: %z " | |
| 1335 "file: %O, size: %O", | |
| 1336 in->buf->last_buf, | |
| 1337 in->buf->in_file, | |
| 1338 in->buf->start, in->buf->pos, | |
| 1339 in->buf->last - in->buf->pos, | |
| 1340 in->buf->file_pos, | |
| 1341 in->buf->file_last - in->buf->file_pos); | |
| 1342 | |
| 1343 if (ngx_buf_special(in->buf)) { | |
| 1344 goto next; | |
| 1345 } | |
| 1346 | |
| 1347 if (in->buf->in_file) { | |
| 1348 file_pos = in->buf->file_pos; | |
| 1349 | |
| 1350 } else { | |
| 1351 pos = in->buf->pos; | |
| 1352 } | |
| 1353 | |
| 1354 next = 0; | |
| 1355 | |
| 1356 do { | |
| 1357 | |
| 1358 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 1359 if (cl == NULL) { | |
| 1360 return NGX_ERROR; | |
| 1361 } | |
| 1362 | |
| 1363 b = cl->buf; | |
| 1364 | |
| 1365 f = (ngx_http_grpc_frame_t *) b->last; | |
| 1366 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1367 | |
| 1368 *ll = cl; | |
| 1369 ll = &cl->next; | |
| 1370 | |
| 1371 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
| 1372 if (cl == NULL) { | |
| 1373 return NGX_ERROR; | |
| 1374 } | |
| 1375 | |
| 1376 b = cl->buf; | |
| 1377 start = b->start; | |
| 1378 | |
| 1379 ngx_memcpy(b, in->buf, sizeof(ngx_buf_t)); | |
| 1380 | |
| 1381 /* | |
| 1382 * restore b->start to preserve memory allocated in the buffer, | |
| 1383 * to reuse it later for headers and control frames | |
| 1384 */ | |
| 1385 | |
| 1386 b->start = start; | |
| 1387 | |
| 1388 if (in->buf->in_file) { | |
| 1389 b->file_pos = file_pos; | |
| 1390 file_pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
| 1391 | |
| 1392 if (file_pos >= in->buf->file_last) { | |
| 1393 file_pos = in->buf->file_last; | |
| 1394 next = 1; | |
| 1395 } | |
| 1396 | |
| 1397 b->file_last = file_pos; | |
| 1398 len = (ngx_uint_t) (file_pos - b->file_pos); | |
| 1399 | |
| 1400 } else { | |
| 1401 b->pos = pos; | |
| 1402 pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
| 1403 | |
| 1404 if (pos >= in->buf->last) { | |
| 1405 pos = in->buf->last; | |
| 1406 next = 1; | |
| 1407 } | |
| 1408 | |
| 1409 b->last = pos; | |
| 1410 len = (ngx_uint_t) (pos - b->pos); | |
| 1411 } | |
| 1412 | |
| 1413 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; | |
| 1414 b->shadow = in->buf; | |
| 1415 b->last_shadow = next; | |
| 1416 | |
| 1417 b->last_buf = 0; | |
| 1418 b->last_in_chain = 0; | |
| 1419 | |
| 1420 *ll = cl; | |
| 1421 ll = &cl->next; | |
| 1422 | |
| 1423 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1424 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1425 f->length_2 = (u_char) (len & 0xff); | |
| 1426 f->type = NGX_HTTP_V2_DATA_FRAME; | |
| 1427 f->flags = 0; | |
| 1428 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1429 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1430 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1431 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1432 | |
| 1433 limit -= len; | |
| 1434 ctx->send_window -= len; | |
| 1435 ctx->connection->send_window -= len; | |
| 1436 | |
| 1437 } while (!next && limit > 0); | |
| 1438 | |
| 1439 if (!next) { | |
| 1440 /* | |
| 1441 * if the buffer wasn't fully sent due to flow control limits, | |
| 1442 * preserve position for future use | |
| 1443 */ | |
| 1444 | |
| 1445 if (in->buf->in_file) { | |
| 1446 in->buf->file_pos = file_pos; | |
| 1447 | |
| 1448 } else { | |
| 1449 in->buf->pos = pos; | |
| 1450 } | |
| 1451 | |
| 1452 break; | |
| 1453 } | |
| 1454 | |
| 1455 next: | |
| 1456 | |
| 1457 if (in->buf->last_buf) { | |
| 1458 last = 1; | |
| 1459 } | |
| 1460 | |
| 1461 in = in->next; | |
| 1462 } | |
| 1463 | |
| 1464 ctx->in = in; | |
| 1465 | |
| 1466 if (last) { | |
| 1467 | |
| 1468 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1469 "grpc output last"); | |
| 1470 | |
| 1471 ctx->output_closed = 1; | |
| 1472 | |
| 1473 if (f) { | |
| 1474 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1475 | |
| 1476 } else { | |
| 1477 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 1478 if (cl == NULL) { | |
| 1479 return NGX_ERROR; | |
| 1480 } | |
| 1481 | |
| 1482 b = cl->buf; | |
| 1483 | |
| 1484 f = (ngx_http_grpc_frame_t *) b->last; | |
| 1485 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1486 | |
| 1487 f->length_0 = 0; | |
| 1488 f->length_1 = 0; | |
| 1489 f->length_2 = 0; | |
| 1490 f->type = NGX_HTTP_V2_DATA_FRAME; | |
| 1491 f->flags = NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1492 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1493 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1494 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1495 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1496 | |
| 1497 *ll = cl; | |
| 1498 ll = &cl->next; | |
| 1499 } | |
| 1500 | |
| 1501 cl->buf->last_buf = 1; | |
| 1502 } | |
| 1503 | |
| 1504 *ll = NULL; | |
| 1505 | |
| 1506 #if (NGX_DEBUG) | |
| 1507 | |
| 1508 for (cl = out; cl; cl = cl->next) { | |
| 1509 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
| 1510 "grpc output out l:%d f:%d %p, pos %p, size: %z " | |
| 1511 "file: %O, size: %O", | |
| 1512 cl->buf->last_buf, | |
| 1513 cl->buf->in_file, | |
| 1514 cl->buf->start, cl->buf->pos, | |
| 1515 cl->buf->last - cl->buf->pos, | |
| 1516 cl->buf->file_pos, | |
| 1517 cl->buf->file_last - cl->buf->file_pos); | |
| 1518 } | |
| 1519 | |
| 1520 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1521 "grpc output limit: %uz w:%z:%uz", | |
| 1522 limit, ctx->send_window, ctx->connection->send_window); | |
| 1523 | |
| 1524 #endif | |
| 1525 | |
| 1526 rc = ngx_chain_writer(&r->upstream->writer, out); | |
| 1527 | |
| 1528 ngx_chain_update_chains(r->pool, &ctx->free, &ctx->busy, &out, | |
| 1529 (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter); | |
| 1530 | |
| 1531 for (cl = ctx->free; cl; cl = cl->next) { | |
| 1532 | |
| 1533 /* mark original buffers as sent */ | |
| 1534 | |
| 1535 if (cl->buf->shadow) { | |
| 1536 if (cl->buf->last_shadow) { | |
| 1537 b = cl->buf->shadow; | |
| 1538 b->pos = b->last; | |
| 1539 } | |
| 1540 | |
| 1541 cl->buf->shadow = NULL; | |
| 1542 } | |
| 1543 } | |
| 1544 | |
| 1545 if (rc == NGX_OK && ctx->in) { | |
| 1546 rc = NGX_AGAIN; | |
| 1547 } | |
| 1548 | |
|
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
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parents:
7349
diff
changeset
|
1549 if (rc == NGX_AGAIN) { |
|
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
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parents:
7349
diff
changeset
|
1550 ctx->output_blocked = 1; |
|
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
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parents:
7349
diff
changeset
|
1551 |
|
67c6cb7f477c
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1552 } else { |
|
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
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parents:
7349
diff
changeset
|
1553 ctx->output_blocked = 0; |
|
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1554 } |
|
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1555 |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1556 if (ctx->done) { |
|
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
changeset
|
1557 |
|
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
changeset
|
1558 /* |
|
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
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diff
changeset
|
1559 * We have already got the response and were sending some additional |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1560 * control frames. Even if there is still something unsent, stop |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1561 * here anyway. |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1562 */ |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1563 |
|
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
changeset
|
1564 u = r->upstream; |
|
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
changeset
|
1565 u->length = 0; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1566 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
1567 if (ctx->in == NULL |
|
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
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diff
changeset
|
1568 && ctx->out == NULL |
|
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
changeset
|
1569 && ctx->output_closed |
|
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1570 && !ctx->output_blocked |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
1571 && ctx->state == ngx_http_grpc_st_start) |
|
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
changeset
|
1572 { |
|
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
changeset
|
1573 u->keepalive = 1; |
|
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
changeset
|
1574 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1575 |
|
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
changeset
|
1576 ngx_post_event(u->peer.connection->read, &ngx_posted_events); |
|
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
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|
1577 } |
|
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parents:
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diff
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|
1578 |
| 7233 | 1579 return rc; |
| 1580 } | |
| 1581 | |
| 1582 | |
| 1583 static ngx_int_t | |
| 1584 ngx_http_grpc_process_header(ngx_http_request_t *r) | |
| 1585 { | |
| 1586 ngx_str_t *status_line; | |
| 1587 ngx_int_t rc, status; | |
| 1588 ngx_buf_t *b; | |
| 1589 ngx_table_elt_t *h; | |
| 1590 ngx_http_upstream_t *u; | |
| 1591 ngx_http_grpc_ctx_t *ctx; | |
| 1592 ngx_http_upstream_header_t *hh; | |
| 1593 ngx_http_upstream_main_conf_t *umcf; | |
| 1594 | |
| 1595 u = r->upstream; | |
| 1596 b = &u->buffer; | |
| 1597 | |
|
7736
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1598 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
|
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1599 "grpc response: %*xs%s, len: %uz", |
|
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1600 (size_t) ngx_min(b->last - b->pos, 256), |
|
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1601 b->pos, b->last - b->pos > 256 ? "..." : "", |
|
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1602 b->last - b->pos); |
| 7233 | 1603 |
| 1604 ctx = ngx_http_grpc_get_ctx(r); | |
| 1605 | |
| 1606 if (ctx == NULL) { | |
| 1607 return NGX_ERROR; | |
| 1608 } | |
| 1609 | |
| 1610 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); | |
| 1611 | |
| 1612 for ( ;; ) { | |
| 1613 | |
| 1614 if (ctx->state < ngx_http_grpc_st_payload) { | |
| 1615 | |
| 1616 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
| 1617 | |
| 1618 if (rc == NGX_AGAIN) { | |
| 1619 | |
| 1620 /* | |
| 1621 * there can be a lot of window update frames, | |
| 1622 * so we reset buffer if it is empty and we haven't | |
| 1623 * started parsing headers yet | |
| 1624 */ | |
| 1625 | |
| 1626 if (!ctx->parsing_headers) { | |
| 1627 b->pos = b->start; | |
| 1628 b->last = b->pos; | |
| 1629 } | |
| 1630 | |
| 1631 return NGX_AGAIN; | |
| 1632 } | |
| 1633 | |
| 1634 if (rc == NGX_ERROR) { | |
| 1635 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1636 } | |
| 1637 | |
| 1638 /* | |
| 1639 * RFC 7540 says that implementations MUST discard frames | |
| 1640 * that have unknown or unsupported types. However, extension | |
| 1641 * frames that appear in the middle of a header block are | |
| 1642 * not permitted. Also, for obvious reasons CONTINUATION frames | |
| 1643 * cannot appear before headers, and DATA frames are not expected | |
| 1644 * to appear before all headers are parsed. | |
| 1645 */ | |
| 1646 | |
| 1647 if (ctx->type == NGX_HTTP_V2_DATA_FRAME | |
| 1648 || (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
| 1649 && !ctx->parsing_headers) | |
| 1650 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
| 1651 && ctx->parsing_headers)) | |
| 1652 { | |
| 1653 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1654 "upstream sent unexpected http2 frame: %d", | |
| 1655 ctx->type); | |
| 1656 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1657 } | |
| 1658 | |
| 1659 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
| 1660 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1661 "upstream sent frame for unknown stream %ui", | |
| 1662 ctx->stream_id); | |
| 1663 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1664 } | |
| 1665 } | |
| 1666 | |
| 1667 /* frame payload */ | |
| 1668 | |
| 1669 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
| 1670 | |
| 1671 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
| 1672 | |
| 1673 if (rc == NGX_AGAIN) { | |
| 1674 return NGX_AGAIN; | |
| 1675 } | |
| 1676 | |
| 1677 if (rc == NGX_ERROR) { | |
| 1678 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1679 } | |
| 1680 | |
| 1681 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1682 "upstream rejected request with error %ui", | |
| 1683 ctx->error); | |
| 1684 | |
| 1685 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1686 } | |
| 1687 | |
| 1688 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
| 1689 | |
| 1690 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
| 1691 | |
| 1692 if (rc == NGX_AGAIN) { | |
| 1693 return NGX_AGAIN; | |
| 1694 } | |
| 1695 | |
| 1696 if (rc == NGX_ERROR) { | |
| 1697 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1698 } | |
| 1699 | |
| 1700 /* | |
| 1701 * If stream_id is lower than one we use, our | |
| 1702 * request won't be processed and needs to be retried. | |
| 1703 * If stream_id is greater or equal to the one we use, | |
| 1704 * we can continue normally (except we can't use this | |
| 1705 * connection for additional requests). If there is | |
| 1706 * a real error, the connection will be closed. | |
| 1707 */ | |
| 1708 | |
| 1709 if (ctx->stream_id < ctx->id) { | |
| 1710 | |
| 1711 /* TODO: we can retry non-idempotent requests */ | |
| 1712 | |
| 1713 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1714 "upstream sent goaway with error %ui", | |
| 1715 ctx->error); | |
| 1716 | |
| 1717 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1718 } | |
| 1719 | |
| 1720 continue; | |
| 1721 } | |
| 1722 | |
| 1723 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
| 1724 | |
| 1725 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
| 1726 | |
| 1727 if (rc == NGX_AGAIN) { | |
| 1728 return NGX_AGAIN; | |
| 1729 } | |
| 1730 | |
| 1731 if (rc == NGX_ERROR) { | |
| 1732 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1733 } | |
| 1734 | |
| 1735 if (ctx->in) { | |
| 1736 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1737 } | |
| 1738 | |
| 1739 continue; | |
| 1740 } | |
| 1741 | |
| 1742 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
| 1743 | |
| 1744 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
| 1745 | |
| 1746 if (rc == NGX_AGAIN) { | |
| 1747 return NGX_AGAIN; | |
| 1748 } | |
| 1749 | |
| 1750 if (rc == NGX_ERROR) { | |
| 1751 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1752 } | |
| 1753 | |
| 1754 if (ctx->in) { | |
| 1755 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1756 } | |
| 1757 | |
| 1758 continue; | |
| 1759 } | |
| 1760 | |
| 1761 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
| 1762 | |
| 1763 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
| 1764 | |
| 1765 if (rc == NGX_AGAIN) { | |
| 1766 return NGX_AGAIN; | |
| 1767 } | |
| 1768 | |
| 1769 if (rc == NGX_ERROR) { | |
| 1770 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1771 } | |
| 1772 | |
| 1773 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1774 continue; | |
| 1775 } | |
| 1776 | |
| 1777 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
| 1778 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1779 "upstream sent unexpected push promise frame"); | |
| 1780 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1781 } | |
| 1782 | |
| 1783 if (ctx->type != NGX_HTTP_V2_HEADERS_FRAME | |
| 1784 && ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME) | |
| 1785 { | |
| 1786 /* priority, unknown frames */ | |
| 1787 | |
| 1788 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 1789 ctx->rest -= b->last - b->pos; | |
| 1790 b->pos = b->last; | |
| 1791 return NGX_AGAIN; | |
| 1792 } | |
| 1793 | |
| 1794 b->pos += ctx->rest; | |
| 1795 ctx->rest = 0; | |
| 1796 ctx->state = ngx_http_grpc_st_start; | |
| 1797 | |
| 1798 continue; | |
| 1799 } | |
| 1800 | |
| 1801 /* headers */ | |
| 1802 | |
| 1803 for ( ;; ) { | |
| 1804 | |
| 1805 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
| 1806 | |
| 1807 if (rc == NGX_AGAIN) { | |
| 1808 break; | |
| 1809 } | |
| 1810 | |
| 1811 if (rc == NGX_OK) { | |
| 1812 | |
| 1813 /* a header line has been parsed successfully */ | |
| 1814 | |
| 1815 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1816 "grpc header: \"%V: %V\"", | |
| 1817 &ctx->name, &ctx->value); | |
| 1818 | |
| 1819 if (ctx->name.len && ctx->name.data[0] == ':') { | |
| 1820 | |
| 1821 if (ctx->name.len != sizeof(":status") - 1 | |
| 1822 || ngx_strncmp(ctx->name.data, ":status", | |
| 1823 sizeof(":status") - 1) | |
| 1824 != 0) | |
| 1825 { | |
| 1826 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1827 "upstream sent invalid header \"%V: %V\"", | |
| 1828 &ctx->name, &ctx->value); | |
| 1829 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1830 } | |
| 1831 | |
| 1832 if (ctx->status) { | |
| 1833 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1834 "upstream sent duplicate :status header"); | |
| 1835 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1836 } | |
| 1837 | |
| 1838 status_line = &ctx->value; | |
| 1839 | |
| 1840 if (status_line->len != 3) { | |
| 1841 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1842 "upstream sent invalid :status \"%V\"", | |
| 1843 status_line); | |
| 1844 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1845 } | |
| 1846 | |
| 1847 status = ngx_atoi(status_line->data, 3); | |
| 1848 | |
| 1849 if (status == NGX_ERROR) { | |
| 1850 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1851 "upstream sent invalid :status \"%V\"", | |
| 1852 status_line); | |
| 1853 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1854 } | |
| 1855 | |
| 1856 if (status < NGX_HTTP_OK) { | |
| 1857 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1858 "upstream sent unexpected :status \"%V\"", | |
| 1859 status_line); | |
| 1860 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1861 } | |
| 1862 | |
| 1863 u->headers_in.status_n = status; | |
| 1864 | |
| 1865 if (u->state && u->state->status == 0) { | |
| 1866 u->state->status = status; | |
| 1867 } | |
| 1868 | |
| 1869 ctx->status = 1; | |
| 1870 | |
| 1871 continue; | |
| 1872 | |
| 1873 } else if (!ctx->status) { | |
| 1874 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1875 "upstream sent no :status header"); | |
| 1876 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1877 } | |
| 1878 | |
| 1879 h = ngx_list_push(&u->headers_in.headers); | |
| 1880 if (h == NULL) { | |
| 1881 return NGX_ERROR; | |
| 1882 } | |
| 1883 | |
| 1884 h->key = ctx->name; | |
| 1885 h->value = ctx->value; | |
| 1886 h->lowcase_key = h->key.data; | |
| 1887 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
| 1888 | |
| 1889 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash, | |
| 1890 h->lowcase_key, h->key.len); | |
| 1891 | |
| 1892 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) { | |
| 1893 return NGX_ERROR; | |
| 1894 } | |
| 1895 | |
| 1896 continue; | |
| 1897 } | |
| 1898 | |
| 1899 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
| 1900 | |
| 1901 /* a whole header has been parsed successfully */ | |
| 1902 | |
| 1903 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1904 "grpc header done"); | |
| 1905 | |
|
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1906 if (ctx->end_stream) { |
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1907 u->headers_in.content_length_n = 0; |
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1908 |
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1909 if (ctx->in == NULL |
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1910 && ctx->out == NULL |
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1911 && ctx->output_closed |
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1912 && !ctx->output_blocked |
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1913 && b->last == b->pos) |
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1914 { |
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1915 u->keepalive = 1; |
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1916 } |
| 7233 | 1917 } |
| 1918 | |
| 1919 return NGX_OK; | |
| 1920 } | |
| 1921 | |
| 1922 /* there was error while a header line parsing */ | |
| 1923 | |
| 1924 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1925 "upstream sent invalid header"); | |
| 1926 | |
| 1927 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1928 } | |
| 1929 | |
| 1930 /* rc == NGX_AGAIN */ | |
| 1931 | |
| 1932 if (ctx->rest == 0) { | |
| 1933 ctx->state = ngx_http_grpc_st_start; | |
| 1934 continue; | |
| 1935 } | |
| 1936 | |
| 1937 return NGX_AGAIN; | |
| 1938 } | |
| 1939 } | |
| 1940 | |
| 1941 | |
| 1942 static ngx_int_t | |
| 1943 ngx_http_grpc_filter_init(void *data) | |
| 1944 { | |
| 1945 ngx_http_grpc_ctx_t *ctx = data; | |
| 1946 | |
| 1947 ngx_http_request_t *r; | |
| 1948 ngx_http_upstream_t *u; | |
| 1949 | |
| 1950 r = ctx->request; | |
| 1951 u = r->upstream; | |
| 1952 | |
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1953 if (u->headers_in.status_n == NGX_HTTP_NO_CONTENT |
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1954 || u->headers_in.status_n == NGX_HTTP_NOT_MODIFIED |
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1955 || r->method == NGX_HTTP_HEAD) |
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1956 { |
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1957 ctx->length = 0; |
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1958 |
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1959 } else { |
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1960 ctx->length = u->headers_in.content_length_n; |
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1961 } |
| 7233 | 1962 |
| 1963 if (ctx->end_stream) { | |
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1964 |
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1965 if (ctx->length > 0) { |
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1966 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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1967 "upstream prematurely closed stream"); |
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1968 return NGX_ERROR; |
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1969 } |
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1970 |
| 7233 | 1971 u->length = 0; |
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1972 ctx->done = 1; |
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1973 |
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1974 } else { |
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1975 u->length = 1; |
| 7233 | 1976 } |
| 1977 | |
| 1978 return NGX_OK; | |
| 1979 } | |
| 1980 | |
| 1981 | |
| 1982 static ngx_int_t | |
| 1983 ngx_http_grpc_filter(void *data, ssize_t bytes) | |
| 1984 { | |
| 1985 ngx_http_grpc_ctx_t *ctx = data; | |
| 1986 | |
| 1987 ngx_int_t rc; | |
| 1988 ngx_buf_t *b, *buf; | |
| 1989 ngx_chain_t *cl, **ll; | |
| 1990 ngx_table_elt_t *h; | |
| 1991 ngx_http_request_t *r; | |
| 1992 ngx_http_upstream_t *u; | |
| 1993 | |
| 1994 r = ctx->request; | |
| 1995 u = r->upstream; | |
| 1996 b = &u->buffer; | |
| 1997 | |
| 1998 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1999 "grpc filter bytes:%z", bytes); | |
| 2000 | |
| 2001 b->pos = b->last; | |
| 2002 b->last += bytes; | |
| 2003 | |
| 2004 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
| 2005 ll = &cl->next; | |
| 2006 } | |
| 2007 | |
| 2008 for ( ;; ) { | |
| 2009 | |
| 2010 if (ctx->state < ngx_http_grpc_st_payload) { | |
| 2011 | |
| 2012 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
| 2013 | |
| 2014 if (rc == NGX_AGAIN) { | |
|
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2015 |
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2016 if (ctx->done) { |
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2017 |
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2018 if (ctx->length > 0) { |
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2019 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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2020 "upstream prematurely closed stream"); |
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2021 return NGX_ERROR; |
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2022 } |
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2023 |
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2024 /* |
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2025 * We have finished parsing the response and the |
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2026 * remaining control frames. If there are unsent |
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2027 * control frames, post a write event to send them. |
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2028 */ |
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2029 |
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2030 if (ctx->out) { |
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2031 ngx_post_event(u->peer.connection->write, |
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2032 &ngx_posted_events); |
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2033 return NGX_AGAIN; |
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2034 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2035 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2036 u->length = 0; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2037 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2038 if (ctx->in == NULL |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2039 && ctx->output_closed |
|
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
2040 && !ctx->output_blocked |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2041 && ctx->state == ngx_http_grpc_st_start) |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2042 { |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2043 u->keepalive = 1; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2044 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2045 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2046 break; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2047 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2048 |
| 7233 | 2049 return NGX_AGAIN; |
| 2050 } | |
| 2051 | |
| 2052 if (rc == NGX_ERROR) { | |
| 2053 return NGX_ERROR; | |
| 2054 } | |
| 2055 | |
| 2056 if ((ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
| 2057 && !ctx->parsing_headers) | |
| 2058 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
| 2059 && ctx->parsing_headers)) | |
| 2060 { | |
| 2061 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2062 "upstream sent unexpected http2 frame: %d", | |
| 2063 ctx->type); | |
| 2064 return NGX_ERROR; | |
| 2065 } | |
| 2066 | |
| 2067 if (ctx->type == NGX_HTTP_V2_DATA_FRAME) { | |
| 2068 | |
| 2069 if (ctx->stream_id != ctx->id) { | |
| 2070 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2071 "upstream sent data frame " | |
| 2072 "for unknown stream %ui", | |
| 2073 ctx->stream_id); | |
| 2074 return NGX_ERROR; | |
| 2075 } | |
| 2076 | |
|
7680
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2077 if (ctx->length != -1) { |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2078 if ((off_t) ctx->rest > ctx->length) { |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2079 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2080 "upstream sent response body larger " |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2081 "than indicated content length"); |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2082 return NGX_ERROR; |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2083 } |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2084 |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2085 ctx->length -= ctx->rest; |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2086 } |
|
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2087 |
| 7233 | 2088 if (ctx->rest > ctx->recv_window) { |
| 2089 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2090 "upstream violated stream flow control, " | |
| 2091 "received %uz data frame with window %uz", | |
| 2092 ctx->rest, ctx->recv_window); | |
| 2093 return NGX_ERROR; | |
| 2094 } | |
| 2095 | |
| 2096 if (ctx->rest > ctx->connection->recv_window) { | |
| 2097 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2098 "upstream violated connection flow control, " | |
| 2099 "received %uz data frame with window %uz", | |
| 2100 ctx->rest, ctx->connection->recv_window); | |
| 2101 return NGX_ERROR; | |
| 2102 } | |
| 2103 | |
| 2104 ctx->recv_window -= ctx->rest; | |
| 2105 ctx->connection->recv_window -= ctx->rest; | |
| 2106 | |
| 2107 if (ctx->connection->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4 | |
| 2108 || ctx->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4) | |
| 2109 { | |
| 2110 if (ngx_http_grpc_send_window_update(r, ctx) != NGX_OK) { | |
| 2111 return NGX_ERROR; | |
| 2112 } | |
| 2113 | |
| 2114 ngx_post_event(u->peer.connection->write, | |
| 2115 &ngx_posted_events); | |
| 2116 } | |
| 2117 } | |
| 2118 | |
| 2119 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
| 2120 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2121 "upstream sent frame for unknown stream %ui", | |
| 2122 ctx->stream_id); | |
| 2123 return NGX_ERROR; | |
| 2124 } | |
| 2125 | |
|
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2126 if (ctx->stream_id && ctx->done |
|
7647
716eddd74bc2
gRPC: WINDOW_UPDATE after END_STREAM handling (ticket #1797).
Ruslan Ermilov <ru@nginx.com>
parents:
7646
diff
changeset
|
2127 && ctx->type != NGX_HTTP_V2_RST_STREAM_FRAME |
|
716eddd74bc2
gRPC: WINDOW_UPDATE after END_STREAM handling (ticket #1797).
Ruslan Ermilov <ru@nginx.com>
parents:
7646
diff
changeset
|
2128 && ctx->type != NGX_HTTP_V2_WINDOW_UPDATE_FRAME) |
|
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2129 { |
|
7349
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gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2130 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2131 "upstream sent frame for closed stream %ui", |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2132 ctx->stream_id); |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2133 return NGX_ERROR; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2134 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2135 |
| 7233 | 2136 ctx->padding = 0; |
| 2137 } | |
| 2138 | |
| 2139 if (ctx->state == ngx_http_grpc_st_padding) { | |
| 2140 | |
| 2141 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2142 ctx->rest -= b->last - b->pos; | |
| 2143 b->pos = b->last; | |
| 2144 return NGX_AGAIN; | |
| 2145 } | |
| 2146 | |
| 2147 b->pos += ctx->rest; | |
| 2148 ctx->rest = 0; | |
| 2149 ctx->state = ngx_http_grpc_st_start; | |
| 2150 | |
| 2151 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
|
7349
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gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2152 ctx->done = 1; |
| 7233 | 2153 } |
| 2154 | |
| 2155 continue; | |
| 2156 } | |
| 2157 | |
| 2158 /* frame payload */ | |
| 2159 | |
| 2160 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
| 2161 | |
| 2162 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
| 2163 | |
| 2164 if (rc == NGX_AGAIN) { | |
| 2165 return NGX_AGAIN; | |
| 2166 } | |
| 2167 | |
| 2168 if (rc == NGX_ERROR) { | |
| 2169 return NGX_ERROR; | |
| 2170 } | |
| 2171 | |
|
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2172 if (ctx->error || !ctx->done) { |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2173 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2174 "upstream rejected request with error %ui", |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2175 ctx->error); |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2176 return NGX_ERROR; |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2177 } |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2178 |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2179 if (ctx->rst) { |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2180 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2181 "upstream sent frame for closed stream %ui", |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2182 ctx->stream_id); |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2183 return NGX_ERROR; |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2184 } |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2185 |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2186 ctx->rst = 1; |
| 7233 | 2187 } |
| 2188 | |
| 2189 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
| 2190 | |
| 2191 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
| 2192 | |
| 2193 if (rc == NGX_AGAIN) { | |
| 2194 return NGX_AGAIN; | |
| 2195 } | |
| 2196 | |
| 2197 if (rc == NGX_ERROR) { | |
| 2198 return NGX_ERROR; | |
| 2199 } | |
| 2200 | |
| 2201 /* | |
| 2202 * If stream_id is lower than one we use, our | |
| 2203 * request won't be processed and needs to be retried. | |
| 2204 * If stream_id is greater or equal to the one we use, | |
| 2205 * we can continue normally (except we can't use this | |
| 2206 * connection for additional requests). If there is | |
| 2207 * a real error, the connection will be closed. | |
| 2208 */ | |
| 2209 | |
| 2210 if (ctx->stream_id < ctx->id) { | |
| 2211 | |
| 2212 /* TODO: we can retry non-idempotent requests */ | |
| 2213 | |
| 2214 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2215 "upstream sent goaway with error %ui", | |
| 2216 ctx->error); | |
| 2217 | |
| 2218 return NGX_ERROR; | |
| 2219 } | |
| 2220 | |
| 2221 continue; | |
| 2222 } | |
| 2223 | |
| 2224 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
| 2225 | |
| 2226 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
| 2227 | |
| 2228 if (rc == NGX_AGAIN) { | |
| 2229 return NGX_AGAIN; | |
| 2230 } | |
| 2231 | |
| 2232 if (rc == NGX_ERROR) { | |
| 2233 return NGX_ERROR; | |
| 2234 } | |
| 2235 | |
| 2236 if (ctx->in) { | |
| 2237 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2238 } | |
| 2239 | |
| 2240 continue; | |
| 2241 } | |
| 2242 | |
| 2243 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
| 2244 | |
| 2245 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
| 2246 | |
| 2247 if (rc == NGX_AGAIN) { | |
| 2248 return NGX_AGAIN; | |
| 2249 } | |
| 2250 | |
| 2251 if (rc == NGX_ERROR) { | |
| 2252 return NGX_ERROR; | |
| 2253 } | |
| 2254 | |
| 2255 if (ctx->in) { | |
| 2256 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2257 } | |
| 2258 | |
| 2259 continue; | |
| 2260 } | |
| 2261 | |
| 2262 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
| 2263 | |
| 2264 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
| 2265 | |
| 2266 if (rc == NGX_AGAIN) { | |
| 2267 return NGX_AGAIN; | |
| 2268 } | |
| 2269 | |
| 2270 if (rc == NGX_ERROR) { | |
| 2271 return NGX_ERROR; | |
| 2272 } | |
| 2273 | |
| 2274 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2275 continue; | |
| 2276 } | |
| 2277 | |
| 2278 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
| 2279 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2280 "upstream sent unexpected push promise frame"); | |
| 2281 return NGX_ERROR; | |
| 2282 } | |
| 2283 | |
| 2284 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME | |
| 2285 || ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) | |
| 2286 { | |
| 2287 for ( ;; ) { | |
| 2288 | |
| 2289 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
| 2290 | |
| 2291 if (rc == NGX_AGAIN) { | |
| 2292 break; | |
| 2293 } | |
| 2294 | |
| 2295 if (rc == NGX_OK) { | |
| 2296 | |
| 2297 /* a header line has been parsed successfully */ | |
| 2298 | |
| 2299 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2300 "grpc trailer: \"%V: %V\"", | |
| 2301 &ctx->name, &ctx->value); | |
| 2302 | |
| 2303 if (ctx->name.len && ctx->name.data[0] == ':') { | |
| 2304 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2305 "upstream sent invalid " | |
| 2306 "trailer \"%V: %V\"", | |
| 2307 &ctx->name, &ctx->value); | |
| 2308 return NGX_ERROR; | |
| 2309 } | |
| 2310 | |
| 2311 h = ngx_list_push(&u->headers_in.trailers); | |
| 2312 if (h == NULL) { | |
| 2313 return NGX_ERROR; | |
| 2314 } | |
| 2315 | |
| 2316 h->key = ctx->name; | |
| 2317 h->value = ctx->value; | |
| 2318 h->lowcase_key = h->key.data; | |
| 2319 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
| 2320 | |
| 2321 continue; | |
| 2322 } | |
| 2323 | |
| 2324 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
| 2325 | |
| 2326 /* a whole header has been parsed successfully */ | |
| 2327 | |
| 2328 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2329 "grpc trailer done"); | |
| 2330 | |
| 2331 if (ctx->end_stream) { | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2332 ctx->done = 1; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2333 break; |
| 7233 | 2334 } |
| 2335 | |
| 2336 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2337 "upstream sent trailer without " | |
| 2338 "end stream flag"); | |
| 2339 return NGX_ERROR; | |
| 2340 } | |
| 2341 | |
| 2342 /* there was error while a header line parsing */ | |
| 2343 | |
| 2344 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2345 "upstream sent invalid trailer"); | |
| 2346 | |
| 2347 return NGX_ERROR; | |
| 2348 } | |
| 2349 | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2350 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2351 continue; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2352 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2353 |
| 7233 | 2354 /* rc == NGX_AGAIN */ |
| 2355 | |
| 2356 if (ctx->rest == 0) { | |
| 2357 ctx->state = ngx_http_grpc_st_start; | |
| 2358 continue; | |
| 2359 } | |
| 2360 | |
| 2361 return NGX_AGAIN; | |
| 2362 } | |
| 2363 | |
| 2364 if (ctx->type != NGX_HTTP_V2_DATA_FRAME) { | |
| 2365 | |
| 2366 /* priority, unknown frames */ | |
| 2367 | |
| 2368 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2369 ctx->rest -= b->last - b->pos; | |
| 2370 b->pos = b->last; | |
| 2371 return NGX_AGAIN; | |
| 2372 } | |
| 2373 | |
| 2374 b->pos += ctx->rest; | |
| 2375 ctx->rest = 0; | |
| 2376 ctx->state = ngx_http_grpc_st_start; | |
| 2377 | |
| 2378 continue; | |
| 2379 } | |
| 2380 | |
| 2381 /* | |
| 2382 * data frame: | |
| 2383 * | |
| 2384 * +---------------+ | |
| 2385 * |Pad Length? (8)| | |
| 2386 * +---------------+-----------------------------------------------+ | |
| 2387 * | Data (*) ... | |
| 2388 * +---------------------------------------------------------------+ | |
| 2389 * | Padding (*) ... | |
| 2390 * +---------------------------------------------------------------+ | |
| 2391 */ | |
| 2392 | |
| 2393 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
| 2394 | |
| 2395 if (ctx->rest == 0) { | |
| 2396 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2397 "upstream sent too short http2 frame"); | |
| 2398 return NGX_ERROR; | |
| 2399 } | |
| 2400 | |
| 2401 if (b->pos == b->last) { | |
| 2402 return NGX_AGAIN; | |
| 2403 } | |
| 2404 | |
| 2405 ctx->flags &= ~NGX_HTTP_V2_PADDED_FLAG; | |
| 2406 ctx->padding = *b->pos++; | |
| 2407 ctx->rest -= 1; | |
| 2408 | |
| 2409 if (ctx->padding > ctx->rest) { | |
| 2410 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2411 "upstream sent http2 frame with too long " | |
| 2412 "padding: %d in frame %uz", | |
| 2413 ctx->padding, ctx->rest); | |
| 2414 return NGX_ERROR; | |
| 2415 } | |
| 2416 | |
| 2417 continue; | |
| 2418 } | |
| 2419 | |
| 2420 if (ctx->rest == ctx->padding) { | |
| 2421 goto done; | |
| 2422 } | |
| 2423 | |
| 2424 if (b->pos == b->last) { | |
| 2425 return NGX_AGAIN; | |
| 2426 } | |
| 2427 | |
| 2428 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
| 2429 if (cl == NULL) { | |
| 2430 return NGX_ERROR; | |
| 2431 } | |
| 2432 | |
| 2433 *ll = cl; | |
| 2434 ll = &cl->next; | |
| 2435 | |
| 2436 buf = cl->buf; | |
| 2437 | |
| 2438 buf->flush = 1; | |
| 2439 buf->memory = 1; | |
| 2440 | |
| 2441 buf->pos = b->pos; | |
| 2442 buf->tag = u->output.tag; | |
| 2443 | |
| 2444 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2445 "grpc output buf %p", buf->pos); | |
| 2446 | |
| 2447 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
| 2448 | |
| 2449 ctx->rest -= b->last - b->pos; | |
| 2450 b->pos = b->last; | |
| 2451 buf->last = b->pos; | |
| 2452 | |
| 2453 return NGX_AGAIN; | |
| 2454 } | |
| 2455 | |
| 2456 b->pos += ctx->rest - ctx->padding; | |
| 2457 buf->last = b->pos; | |
| 2458 ctx->rest = ctx->padding; | |
| 2459 | |
| 2460 done: | |
| 2461 | |
| 2462 if (ctx->padding) { | |
| 2463 ctx->state = ngx_http_grpc_st_padding; | |
| 2464 continue; | |
| 2465 } | |
| 2466 | |
| 2467 ctx->state = ngx_http_grpc_st_start; | |
| 2468 | |
| 2469 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2470 ctx->done = 1; |
| 7233 | 2471 } |
| 2472 } | |
| 2473 | |
| 2474 return NGX_OK; | |
| 2475 } | |
| 2476 | |
| 2477 | |
| 2478 static ngx_int_t | |
| 2479 ngx_http_grpc_parse_frame(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2480 ngx_buf_t *b) | |
| 2481 { | |
| 2482 u_char ch, *p; | |
| 2483 ngx_http_grpc_state_e state; | |
| 2484 | |
| 2485 state = ctx->state; | |
| 2486 | |
| 2487 for (p = b->pos; p < b->last; p++) { | |
| 2488 ch = *p; | |
| 2489 | |
| 2490 #if 0 | |
| 2491 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2492 "grpc frame byte: %02Xd, s:%d", ch, state); | |
| 2493 #endif | |
| 2494 | |
| 2495 switch (state) { | |
| 2496 | |
| 2497 case ngx_http_grpc_st_start: | |
| 2498 ctx->rest = ch << 16; | |
| 2499 state = ngx_http_grpc_st_length_2; | |
| 2500 break; | |
| 2501 | |
| 2502 case ngx_http_grpc_st_length_2: | |
| 2503 ctx->rest |= ch << 8; | |
| 2504 state = ngx_http_grpc_st_length_3; | |
| 2505 break; | |
| 2506 | |
| 2507 case ngx_http_grpc_st_length_3: | |
| 2508 ctx->rest |= ch; | |
| 2509 | |
| 2510 if (ctx->rest > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 2511 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2512 "upstream sent too large http2 frame: %uz", | |
| 2513 ctx->rest); | |
| 2514 return NGX_ERROR; | |
| 2515 } | |
| 2516 | |
| 2517 state = ngx_http_grpc_st_type; | |
| 2518 break; | |
| 2519 | |
| 2520 case ngx_http_grpc_st_type: | |
| 2521 ctx->type = ch; | |
| 2522 state = ngx_http_grpc_st_flags; | |
| 2523 break; | |
| 2524 | |
| 2525 case ngx_http_grpc_st_flags: | |
| 2526 ctx->flags = ch; | |
| 2527 state = ngx_http_grpc_st_stream_id; | |
| 2528 break; | |
| 2529 | |
| 2530 case ngx_http_grpc_st_stream_id: | |
| 2531 ctx->stream_id = (ch & 0x7f) << 24; | |
| 2532 state = ngx_http_grpc_st_stream_id_2; | |
| 2533 break; | |
| 2534 | |
| 2535 case ngx_http_grpc_st_stream_id_2: | |
| 2536 ctx->stream_id |= ch << 16; | |
| 2537 state = ngx_http_grpc_st_stream_id_3; | |
| 2538 break; | |
| 2539 | |
| 2540 case ngx_http_grpc_st_stream_id_3: | |
| 2541 ctx->stream_id |= ch << 8; | |
| 2542 state = ngx_http_grpc_st_stream_id_4; | |
| 2543 break; | |
| 2544 | |
| 2545 case ngx_http_grpc_st_stream_id_4: | |
| 2546 ctx->stream_id |= ch; | |
| 2547 | |
| 2548 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2549 "grpc frame: %d, len: %uz, f:%d, i:%ui", | |
| 2550 ctx->type, ctx->rest, ctx->flags, ctx->stream_id); | |
| 2551 | |
| 2552 b->pos = p + 1; | |
| 2553 | |
| 2554 ctx->state = ngx_http_grpc_st_payload; | |
| 2555 ctx->frame_state = 0; | |
| 2556 | |
| 2557 return NGX_OK; | |
| 2558 | |
| 2559 /* suppress warning */ | |
| 2560 case ngx_http_grpc_st_payload: | |
| 2561 case ngx_http_grpc_st_padding: | |
| 2562 break; | |
| 2563 } | |
| 2564 } | |
| 2565 | |
| 2566 b->pos = p; | |
| 2567 ctx->state = state; | |
| 2568 | |
| 2569 return NGX_AGAIN; | |
| 2570 } | |
| 2571 | |
| 2572 | |
| 2573 static ngx_int_t | |
| 2574 ngx_http_grpc_parse_header(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2575 ngx_buf_t *b) | |
| 2576 { | |
| 2577 u_char ch, *p, *last; | |
| 2578 size_t min; | |
| 2579 ngx_int_t rc; | |
| 2580 enum { | |
| 2581 sw_start = 0, | |
| 2582 sw_padding_length, | |
| 2583 sw_dependency, | |
| 2584 sw_dependency_2, | |
| 2585 sw_dependency_3, | |
| 2586 sw_dependency_4, | |
| 2587 sw_weight, | |
| 2588 sw_fragment, | |
| 2589 sw_padding | |
| 2590 } state; | |
| 2591 | |
| 2592 state = ctx->frame_state; | |
| 2593 | |
| 2594 if (state == sw_start) { | |
| 2595 | |
| 2596 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2597 "grpc parse header: start"); | |
| 2598 | |
| 2599 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME) { | |
| 2600 ctx->parsing_headers = 1; | |
| 2601 ctx->fragment_state = 0; | |
| 2602 | |
| 2603 min = (ctx->flags & NGX_HTTP_V2_PADDED_FLAG ? 1 : 0) | |
| 2604 + (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG ? 5 : 0); | |
| 2605 | |
| 2606 if (ctx->rest < min) { | |
| 2607 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2608 "upstream sent headers frame " | |
| 2609 "with invalid length: %uz", | |
| 2610 ctx->rest); | |
| 2611 return NGX_ERROR; | |
| 2612 } | |
| 2613 | |
| 2614 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
| 2615 ctx->end_stream = 1; | |
| 2616 } | |
| 2617 | |
| 2618 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
| 2619 state = sw_padding_length; | |
| 2620 | |
| 2621 } else if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
| 2622 state = sw_dependency; | |
| 2623 | |
| 2624 } else { | |
| 2625 state = sw_fragment; | |
| 2626 } | |
| 2627 | |
| 2628 } else if (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) { | |
| 2629 state = sw_fragment; | |
| 2630 } | |
| 2631 | |
| 2632 ctx->padding = 0; | |
|
7242
25a4353633a0
gRPC: fixed missing state save in frame header parsing.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7240
diff
changeset
|
2633 ctx->frame_state = state; |
| 7233 | 2634 } |
| 2635 | |
| 2636 if (state < sw_fragment) { | |
| 2637 | |
| 2638 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2639 last = b->last; | |
| 2640 | |
| 2641 } else { | |
| 2642 last = b->pos + ctx->rest; | |
| 2643 } | |
| 2644 | |
| 2645 for (p = b->pos; p < last; p++) { | |
| 2646 ch = *p; | |
| 2647 | |
| 2648 #if 0 | |
| 2649 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2650 "grpc header byte: %02Xd s:%d", ch, state); | |
| 2651 #endif | |
| 2652 | |
| 2653 /* | |
| 2654 * headers frame: | |
| 2655 * | |
| 2656 * +---------------+ | |
| 2657 * |Pad Length? (8)| | |
| 2658 * +-+-------------+----------------------------------------------+ | |
| 2659 * |E| Stream Dependency? (31) | | |
| 2660 * +-+-------------+----------------------------------------------+ | |
| 2661 * | Weight? (8) | | |
| 2662 * +-+-------------+----------------------------------------------+ | |
| 2663 * | Header Block Fragment (*) ... | |
| 2664 * +--------------------------------------------------------------+ | |
| 2665 * | Padding (*) ... | |
| 2666 * +--------------------------------------------------------------+ | |
| 2667 */ | |
| 2668 | |
| 2669 switch (state) { | |
| 2670 | |
| 2671 case sw_padding_length: | |
| 2672 | |
| 2673 ctx->padding = ch; | |
| 2674 | |
| 2675 if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
| 2676 state = sw_dependency; | |
| 2677 break; | |
| 2678 } | |
| 2679 | |
| 2680 goto fragment; | |
| 2681 | |
| 2682 case sw_dependency: | |
| 2683 state = sw_dependency_2; | |
| 2684 break; | |
| 2685 | |
| 2686 case sw_dependency_2: | |
| 2687 state = sw_dependency_3; | |
| 2688 break; | |
| 2689 | |
| 2690 case sw_dependency_3: | |
| 2691 state = sw_dependency_4; | |
| 2692 break; | |
| 2693 | |
| 2694 case sw_dependency_4: | |
| 2695 state = sw_weight; | |
| 2696 break; | |
| 2697 | |
| 2698 case sw_weight: | |
| 2699 goto fragment; | |
| 2700 | |
| 2701 /* suppress warning */ | |
| 2702 case sw_start: | |
| 2703 case sw_fragment: | |
| 2704 case sw_padding: | |
| 2705 break; | |
| 2706 } | |
| 2707 } | |
| 2708 | |
| 2709 ctx->rest -= p - b->pos; | |
| 2710 b->pos = p; | |
| 2711 | |
| 2712 ctx->frame_state = state; | |
| 2713 return NGX_AGAIN; | |
| 2714 | |
| 2715 fragment: | |
| 2716 | |
| 2717 p++; | |
| 2718 ctx->rest -= p - b->pos; | |
| 2719 b->pos = p; | |
| 2720 | |
| 2721 if (ctx->padding > ctx->rest) { | |
| 2722 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2723 "upstream sent http2 frame with too long " | |
| 2724 "padding: %d in frame %uz", | |
| 2725 ctx->padding, ctx->rest); | |
| 2726 return NGX_ERROR; | |
| 2727 } | |
| 2728 | |
| 2729 state = sw_fragment; | |
| 2730 ctx->frame_state = state; | |
| 2731 } | |
| 2732 | |
| 2733 if (state == sw_fragment) { | |
| 2734 | |
| 2735 rc = ngx_http_grpc_parse_fragment(r, ctx, b); | |
| 2736 | |
| 2737 if (rc == NGX_AGAIN) { | |
| 2738 return NGX_AGAIN; | |
| 2739 } | |
| 2740 | |
| 2741 if (rc == NGX_ERROR) { | |
| 2742 return NGX_ERROR; | |
| 2743 } | |
| 2744 | |
| 2745 if (rc == NGX_OK) { | |
| 2746 return NGX_OK; | |
| 2747 } | |
| 2748 | |
| 2749 /* rc == NGX_DONE */ | |
| 2750 | |
| 2751 state = sw_padding; | |
| 2752 ctx->frame_state = state; | |
| 2753 } | |
| 2754 | |
| 2755 if (state == sw_padding) { | |
| 2756 | |
| 2757 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2758 | |
| 2759 ctx->rest -= b->last - b->pos; | |
| 2760 b->pos = b->last; | |
| 2761 | |
| 2762 return NGX_AGAIN; | |
| 2763 } | |
| 2764 | |
| 2765 b->pos += ctx->rest; | |
| 2766 ctx->rest = 0; | |
| 2767 | |
| 2768 ctx->state = ngx_http_grpc_st_start; | |
| 2769 | |
| 2770 if (ctx->flags & NGX_HTTP_V2_END_HEADERS_FLAG) { | |
| 2771 | |
| 2772 if (ctx->fragment_state) { | |
| 2773 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2774 "upstream sent truncated http2 header"); | |
| 2775 return NGX_ERROR; | |
| 2776 } | |
| 2777 | |
| 2778 ctx->parsing_headers = 0; | |
| 2779 | |
| 2780 return NGX_HTTP_PARSE_HEADER_DONE; | |
| 2781 } | |
| 2782 | |
| 2783 return NGX_AGAIN; | |
| 2784 } | |
| 2785 | |
| 2786 /* unreachable */ | |
| 2787 | |
| 2788 return NGX_ERROR; | |
| 2789 } | |
| 2790 | |
| 2791 | |
| 2792 static ngx_int_t | |
| 2793 ngx_http_grpc_parse_fragment(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2794 ngx_buf_t *b) | |
| 2795 { | |
| 2796 u_char ch, *p, *last; | |
| 2797 size_t size; | |
| 2798 ngx_uint_t index, size_update; | |
| 2799 enum { | |
| 2800 sw_start = 0, | |
| 2801 sw_index, | |
| 2802 sw_name_length, | |
| 2803 sw_name_length_2, | |
| 2804 sw_name_length_3, | |
| 2805 sw_name_length_4, | |
| 2806 sw_name, | |
| 2807 sw_name_bytes, | |
| 2808 sw_value_length, | |
| 2809 sw_value_length_2, | |
| 2810 sw_value_length_3, | |
| 2811 sw_value_length_4, | |
| 2812 sw_value, | |
| 2813 sw_value_bytes | |
| 2814 } state; | |
| 2815 | |
| 2816 /* header block fragment */ | |
| 2817 | |
| 2818 #if 0 | |
| 2819 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2820 "grpc header fragment %p:%p rest:%uz", | |
| 2821 b->pos, b->last, ctx->rest); | |
| 2822 #endif | |
| 2823 | |
| 2824 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
| 2825 last = b->last; | |
| 2826 | |
| 2827 } else { | |
| 2828 last = b->pos + ctx->rest - ctx->padding; | |
| 2829 } | |
| 2830 | |
| 2831 state = ctx->fragment_state; | |
| 2832 | |
| 2833 for (p = b->pos; p < last; p++) { | |
| 2834 ch = *p; | |
| 2835 | |
| 2836 #if 0 | |
| 2837 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2838 "grpc header byte: %02Xd s:%d", ch, state); | |
| 2839 #endif | |
| 2840 | |
| 2841 switch (state) { | |
| 2842 | |
| 2843 case sw_start: | |
| 2844 ctx->index = 0; | |
| 2845 | |
| 2846 if ((ch & 0x80) == 0x80) { | |
| 2847 /* | |
| 2848 * indexed header: | |
| 2849 * | |
| 2850 * 0 1 2 3 4 5 6 7 | |
| 2851 * +---+---+---+---+---+---+---+---+ | |
| 2852 * | 1 | Index (7+) | | |
| 2853 * +---+---------------------------+ | |
| 2854 */ | |
| 2855 | |
| 2856 index = ch & ~0x80; | |
| 2857 | |
| 2858 if (index == 0 || index > 61) { | |
| 2859 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2860 "upstream sent invalid http2 " | |
| 2861 "table index: %ui", index); | |
| 2862 return NGX_ERROR; | |
| 2863 } | |
| 2864 | |
| 2865 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2866 "grpc indexed header: %ui", index); | |
| 2867 | |
| 2868 ctx->index = index; | |
| 2869 ctx->literal = 0; | |
| 2870 | |
| 2871 goto done; | |
| 2872 | |
| 2873 } else if ((ch & 0xc0) == 0x40) { | |
| 2874 /* | |
| 2875 * literal header with incremental indexing: | |
| 2876 * | |
| 2877 * 0 1 2 3 4 5 6 7 | |
| 2878 * +---+---+---+---+---+---+---+---+ | |
| 2879 * | 0 | 1 | Index (6+) | | |
| 2880 * +---+---+-----------------------+ | |
| 2881 * | H | Value Length (7+) | | |
| 2882 * +---+---------------------------+ | |
| 2883 * | Value String (Length octets) | | |
| 2884 * +-------------------------------+ | |
| 2885 * | |
| 2886 * 0 1 2 3 4 5 6 7 | |
| 2887 * +---+---+---+---+---+---+---+---+ | |
| 2888 * | 0 | 1 | 0 | | |
| 2889 * +---+---+-----------------------+ | |
| 2890 * | H | Name Length (7+) | | |
| 2891 * +---+---------------------------+ | |
| 2892 * | Name String (Length octets) | | |
| 2893 * +---+---------------------------+ | |
| 2894 * | H | Value Length (7+) | | |
| 2895 * +---+---------------------------+ | |
| 2896 * | Value String (Length octets) | | |
| 2897 * +-------------------------------+ | |
| 2898 */ | |
| 2899 | |
| 2900 index = ch & ~0xc0; | |
| 2901 | |
| 2902 if (index > 61) { | |
| 2903 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2904 "upstream sent invalid http2 " | |
| 2905 "table index: %ui", index); | |
| 2906 return NGX_ERROR; | |
| 2907 } | |
| 2908 | |
| 2909 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2910 "grpc literal header: %ui", index); | |
| 2911 | |
| 2912 if (index == 0) { | |
| 2913 state = sw_name_length; | |
| 2914 break; | |
| 2915 } | |
| 2916 | |
| 2917 ctx->index = index; | |
| 2918 ctx->literal = 1; | |
| 2919 | |
| 2920 state = sw_value_length; | |
| 2921 break; | |
| 2922 | |
| 2923 } else if ((ch & 0xe0) == 0x20) { | |
| 2924 /* | |
| 2925 * dynamic table size update: | |
| 2926 * | |
| 2927 * 0 1 2 3 4 5 6 7 | |
| 2928 * +---+---+---+---+---+---+---+---+ | |
| 2929 * | 0 | 0 | 1 | Max size (5+) | | |
| 2930 * +---+---------------------------+ | |
| 2931 */ | |
| 2932 | |
| 2933 size_update = ch & ~0xe0; | |
| 2934 | |
| 2935 if (size_update > 0) { | |
| 2936 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2937 "upstream sent invalid http2 " | |
| 2938 "dynamic table size update: %ui", | |
| 2939 size_update); | |
| 2940 return NGX_ERROR; | |
| 2941 } | |
| 2942 | |
| 2943 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2944 "grpc table size update: %ui", size_update); | |
| 2945 | |
| 2946 break; | |
| 2947 | |
| 2948 } else if ((ch & 0xf0) == 0x10) { | |
| 2949 /* | |
| 2950 * literal header field never indexed: | |
| 2951 * | |
| 2952 * 0 1 2 3 4 5 6 7 | |
| 2953 * +---+---+---+---+---+---+---+---+ | |
| 2954 * | 0 | 0 | 0 | 1 | Index (4+) | | |
| 2955 * +---+---+-----------------------+ | |
| 2956 * | H | Value Length (7+) | | |
| 2957 * +---+---------------------------+ | |
| 2958 * | Value String (Length octets) | | |
| 2959 * +-------------------------------+ | |
| 2960 * | |
| 2961 * 0 1 2 3 4 5 6 7 | |
| 2962 * +---+---+---+---+---+---+---+---+ | |
| 2963 * | 0 | 0 | 0 | 1 | 0 | | |
| 2964 * +---+---+-----------------------+ | |
| 2965 * | H | Name Length (7+) | | |
| 2966 * +---+---------------------------+ | |
| 2967 * | Name String (Length octets) | | |
| 2968 * +---+---------------------------+ | |
| 2969 * | H | Value Length (7+) | | |
| 2970 * +---+---------------------------+ | |
| 2971 * | Value String (Length octets) | | |
| 2972 * +-------------------------------+ | |
| 2973 */ | |
| 2974 | |
| 2975 index = ch & ~0xf0; | |
| 2976 | |
| 2977 if (index == 0x0f) { | |
| 2978 ctx->index = index; | |
| 2979 ctx->literal = 1; | |
| 2980 state = sw_index; | |
| 2981 break; | |
| 2982 } | |
| 2983 | |
| 2984 if (index == 0) { | |
| 2985 state = sw_name_length; | |
| 2986 break; | |
| 2987 } | |
| 2988 | |
| 2989 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2990 "grpc literal header never indexed: %ui", | |
| 2991 index); | |
| 2992 | |
| 2993 ctx->index = index; | |
| 2994 ctx->literal = 1; | |
| 2995 | |
| 2996 state = sw_value_length; | |
| 2997 break; | |
| 2998 | |
| 2999 } else if ((ch & 0xf0) == 0x00) { | |
| 3000 /* | |
| 3001 * literal header field without indexing: | |
| 3002 * | |
| 3003 * 0 1 2 3 4 5 6 7 | |
| 3004 * +---+---+---+---+---+---+---+---+ | |
| 3005 * | 0 | 0 | 0 | 0 | Index (4+) | | |
| 3006 * +---+---+-----------------------+ | |
| 3007 * | H | Value Length (7+) | | |
| 3008 * +---+---------------------------+ | |
| 3009 * | Value String (Length octets) | | |
| 3010 * +-------------------------------+ | |
| 3011 * | |
| 3012 * 0 1 2 3 4 5 6 7 | |
| 3013 * +---+---+---+---+---+---+---+---+ | |
| 3014 * | 0 | 0 | 0 | 0 | 0 | | |
| 3015 * +---+---+-----------------------+ | |
| 3016 * | H | Name Length (7+) | | |
| 3017 * +---+---------------------------+ | |
| 3018 * | Name String (Length octets) | | |
| 3019 * +---+---------------------------+ | |
| 3020 * | H | Value Length (7+) | | |
| 3021 * +---+---------------------------+ | |
| 3022 * | Value String (Length octets) | | |
| 3023 * +-------------------------------+ | |
| 3024 */ | |
| 3025 | |
| 3026 index = ch & ~0xf0; | |
| 3027 | |
| 3028 if (index == 0x0f) { | |
| 3029 ctx->index = index; | |
| 3030 ctx->literal = 1; | |
| 3031 state = sw_index; | |
| 3032 break; | |
| 3033 } | |
| 3034 | |
| 3035 if (index == 0) { | |
| 3036 state = sw_name_length; | |
| 3037 break; | |
| 3038 } | |
| 3039 | |
| 3040 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3041 "grpc literal header without indexing: %ui", | |
| 3042 index); | |
| 3043 | |
| 3044 ctx->index = index; | |
| 3045 ctx->literal = 1; | |
| 3046 | |
| 3047 state = sw_value_length; | |
| 3048 break; | |
| 3049 } | |
| 3050 | |
| 3051 /* not reached */ | |
| 3052 | |
| 3053 return NGX_ERROR; | |
| 3054 | |
| 3055 case sw_index: | |
| 3056 ctx->index = ctx->index + (ch & ~0x80); | |
| 3057 | |
| 3058 if (ch & 0x80) { | |
| 3059 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3060 "upstream sent http2 table index " | |
| 3061 "with continuation flag"); | |
| 3062 return NGX_ERROR; | |
| 3063 } | |
| 3064 | |
| 3065 if (ctx->index > 61) { | |
| 3066 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3067 "upstream sent invalid http2 " | |
| 3068 "table index: %ui", ctx->index); | |
| 3069 return NGX_ERROR; | |
| 3070 } | |
| 3071 | |
| 3072 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3073 "grpc header index: %ui", ctx->index); | |
| 3074 | |
| 3075 state = sw_value_length; | |
| 3076 break; | |
| 3077 | |
| 3078 case sw_name_length: | |
| 3079 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
| 3080 ctx->field_length = ch & ~0x80; | |
| 3081 | |
| 3082 if (ctx->field_length == 0x7f) { | |
| 3083 state = sw_name_length_2; | |
| 3084 break; | |
| 3085 } | |
| 3086 | |
| 3087 if (ctx->field_length == 0) { | |
| 3088 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3089 "upstream sent zero http2 " | |
| 3090 "header name length"); | |
| 3091 return NGX_ERROR; | |
| 3092 } | |
| 3093 | |
| 3094 state = sw_name; | |
| 3095 break; | |
| 3096 | |
| 3097 case sw_name_length_2: | |
| 3098 ctx->field_length += ch & ~0x80; | |
| 3099 | |
| 3100 if (ch & 0x80) { | |
| 3101 state = sw_name_length_3; | |
| 3102 break; | |
| 3103 } | |
| 3104 | |
| 3105 state = sw_name; | |
| 3106 break; | |
| 3107 | |
| 3108 case sw_name_length_3: | |
| 3109 ctx->field_length += (ch & ~0x80) << 7; | |
| 3110 | |
| 3111 if (ch & 0x80) { | |
| 3112 state = sw_name_length_4; | |
| 3113 break; | |
| 3114 } | |
| 3115 | |
| 3116 state = sw_name; | |
| 3117 break; | |
| 3118 | |
| 3119 case sw_name_length_4: | |
| 3120 ctx->field_length += (ch & ~0x80) << 14; | |
| 3121 | |
| 3122 if (ch & 0x80) { | |
| 3123 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3124 "upstream sent too large http2 " | |
| 3125 "header name length"); | |
| 3126 return NGX_ERROR; | |
| 3127 } | |
| 3128 | |
| 3129 state = sw_name; | |
| 3130 break; | |
| 3131 | |
| 3132 case sw_name: | |
| 3133 ctx->name.len = ctx->field_huffman ? | |
| 3134 ctx->field_length * 8 / 5 : ctx->field_length; | |
| 3135 | |
| 3136 ctx->name.data = ngx_pnalloc(r->pool, ctx->name.len + 1); | |
| 3137 if (ctx->name.data == NULL) { | |
| 3138 return NGX_ERROR; | |
| 3139 } | |
| 3140 | |
| 3141 ctx->field_end = ctx->name.data; | |
| 3142 ctx->field_rest = ctx->field_length; | |
| 3143 ctx->field_state = 0; | |
| 3144 | |
| 3145 state = sw_name_bytes; | |
| 3146 | |
| 3147 /* fall through */ | |
| 3148 | |
| 3149 case sw_name_bytes: | |
| 3150 | |
| 3151 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3152 "grpc name: len:%uz h:%d last:%uz, rest:%uz", | |
| 3153 ctx->field_length, | |
| 3154 ctx->field_huffman, | |
| 3155 last - p, | |
| 3156 ctx->rest - (p - b->pos)); | |
| 3157 | |
| 3158 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
| 3159 ctx->field_rest -= size; | |
| 3160 | |
| 3161 if (ctx->field_huffman) { | |
| 3162 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
| 3163 &ctx->field_end, | |
| 3164 ctx->field_rest == 0, | |
| 3165 r->connection->log) | |
| 3166 != NGX_OK) | |
| 3167 { | |
| 3168 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3169 "upstream sent invalid encoded header"); | |
| 3170 return NGX_ERROR; | |
| 3171 } | |
| 3172 | |
| 3173 ctx->name.len = ctx->field_end - ctx->name.data; | |
| 3174 ctx->name.data[ctx->name.len] = '\0'; | |
| 3175 | |
| 3176 } else { | |
|
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3177 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
| 7233 | 3178 ctx->name.data[ctx->name.len] = '\0'; |
| 3179 } | |
| 3180 | |
| 3181 p += size - 1; | |
| 3182 | |
| 3183 if (ctx->field_rest == 0) { | |
| 3184 state = sw_value_length; | |
| 3185 } | |
| 3186 | |
| 3187 break; | |
| 3188 | |
| 3189 case sw_value_length: | |
| 3190 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
| 3191 ctx->field_length = ch & ~0x80; | |
| 3192 | |
| 3193 if (ctx->field_length == 0x7f) { | |
| 3194 state = sw_value_length_2; | |
| 3195 break; | |
| 3196 } | |
| 3197 | |
| 3198 if (ctx->field_length == 0) { | |
| 3199 ngx_str_set(&ctx->value, ""); | |
| 3200 goto done; | |
| 3201 } | |
| 3202 | |
| 3203 state = sw_value; | |
| 3204 break; | |
| 3205 | |
| 3206 case sw_value_length_2: | |
| 3207 ctx->field_length += ch & ~0x80; | |
| 3208 | |
| 3209 if (ch & 0x80) { | |
| 3210 state = sw_value_length_3; | |
| 3211 break; | |
| 3212 } | |
| 3213 | |
| 3214 state = sw_value; | |
| 3215 break; | |
| 3216 | |
| 3217 case sw_value_length_3: | |
| 3218 ctx->field_length += (ch & ~0x80) << 7; | |
| 3219 | |
| 3220 if (ch & 0x80) { | |
| 3221 state = sw_value_length_4; | |
| 3222 break; | |
| 3223 } | |
| 3224 | |
| 3225 state = sw_value; | |
| 3226 break; | |
| 3227 | |
| 3228 case sw_value_length_4: | |
| 3229 ctx->field_length += (ch & ~0x80) << 14; | |
| 3230 | |
| 3231 if (ch & 0x80) { | |
| 3232 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3233 "upstream sent too large http2 " | |
| 3234 "header value length"); | |
| 3235 return NGX_ERROR; | |
| 3236 } | |
| 3237 | |
| 3238 state = sw_value; | |
| 3239 break; | |
| 3240 | |
| 3241 case sw_value: | |
| 3242 ctx->value.len = ctx->field_huffman ? | |
| 3243 ctx->field_length * 8 / 5 : ctx->field_length; | |
| 3244 | |
| 3245 ctx->value.data = ngx_pnalloc(r->pool, ctx->value.len + 1); | |
| 3246 if (ctx->value.data == NULL) { | |
| 3247 return NGX_ERROR; | |
| 3248 } | |
| 3249 | |
| 3250 ctx->field_end = ctx->value.data; | |
| 3251 ctx->field_rest = ctx->field_length; | |
| 3252 ctx->field_state = 0; | |
| 3253 | |
| 3254 state = sw_value_bytes; | |
| 3255 | |
| 3256 /* fall through */ | |
| 3257 | |
| 3258 case sw_value_bytes: | |
| 3259 | |
| 3260 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3261 "grpc value: len:%uz h:%d last:%uz, rest:%uz", | |
| 3262 ctx->field_length, | |
| 3263 ctx->field_huffman, | |
| 3264 last - p, | |
| 3265 ctx->rest - (p - b->pos)); | |
| 3266 | |
| 3267 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
| 3268 ctx->field_rest -= size; | |
| 3269 | |
| 3270 if (ctx->field_huffman) { | |
| 3271 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
| 3272 &ctx->field_end, | |
| 3273 ctx->field_rest == 0, | |
| 3274 r->connection->log) | |
| 3275 != NGX_OK) | |
| 3276 { | |
| 3277 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3278 "upstream sent invalid encoded header"); | |
| 3279 return NGX_ERROR; | |
| 3280 } | |
| 3281 | |
| 3282 ctx->value.len = ctx->field_end - ctx->value.data; | |
| 3283 ctx->value.data[ctx->value.len] = '\0'; | |
| 3284 | |
| 3285 } else { | |
|
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3286 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
| 7233 | 3287 ctx->value.data[ctx->value.len] = '\0'; |
| 3288 } | |
| 3289 | |
| 3290 p += size - 1; | |
| 3291 | |
| 3292 if (ctx->field_rest == 0) { | |
| 3293 goto done; | |
| 3294 } | |
| 3295 | |
| 3296 break; | |
| 3297 } | |
| 3298 | |
| 3299 continue; | |
| 3300 | |
| 3301 done: | |
| 3302 | |
| 3303 p++; | |
| 3304 ctx->rest -= p - b->pos; | |
| 3305 ctx->fragment_state = sw_start; | |
| 3306 b->pos = p; | |
| 3307 | |
| 3308 if (ctx->index) { | |
| 3309 ctx->name = *ngx_http_v2_get_static_name(ctx->index); | |
| 3310 } | |
| 3311 | |
| 3312 if (ctx->index && !ctx->literal) { | |
| 3313 ctx->value = *ngx_http_v2_get_static_value(ctx->index); | |
| 3314 } | |
| 3315 | |
| 3316 if (!ctx->index) { | |
| 3317 if (ngx_http_grpc_validate_header_name(r, &ctx->name) != NGX_OK) { | |
| 3318 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3319 "upstream sent invalid header: \"%V: %V\"", | |
| 3320 &ctx->name, &ctx->value); | |
| 3321 return NGX_ERROR; | |
| 3322 } | |
| 3323 } | |
| 3324 | |
| 3325 if (!ctx->index || ctx->literal) { | |
| 3326 if (ngx_http_grpc_validate_header_value(r, &ctx->value) != NGX_OK) { | |
| 3327 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3328 "upstream sent invalid header: \"%V: %V\"", | |
| 3329 &ctx->name, &ctx->value); | |
| 3330 return NGX_ERROR; | |
| 3331 } | |
| 3332 } | |
| 3333 | |
| 3334 return NGX_OK; | |
| 3335 } | |
| 3336 | |
| 3337 ctx->rest -= p - b->pos; | |
| 3338 ctx->fragment_state = state; | |
| 3339 b->pos = p; | |
| 3340 | |
| 3341 if (ctx->rest > ctx->padding) { | |
| 3342 return NGX_AGAIN; | |
| 3343 } | |
| 3344 | |
| 3345 return NGX_DONE; | |
| 3346 } | |
| 3347 | |
| 3348 | |
| 3349 static ngx_int_t | |
| 3350 ngx_http_grpc_validate_header_name(ngx_http_request_t *r, ngx_str_t *s) | |
| 3351 { | |
| 3352 u_char ch; | |
| 3353 ngx_uint_t i; | |
| 3354 | |
| 3355 for (i = 0; i < s->len; i++) { | |
| 3356 ch = s->data[i]; | |
| 3357 | |
| 3358 if (ch == ':' && i > 0) { | |
| 3359 return NGX_ERROR; | |
| 3360 } | |
| 3361 | |
| 3362 if (ch >= 'A' && ch <= 'Z') { | |
| 3363 return NGX_ERROR; | |
| 3364 } | |
| 3365 | |
| 3366 if (ch == '\0' || ch == CR || ch == LF) { | |
| 3367 return NGX_ERROR; | |
| 3368 } | |
| 3369 } | |
| 3370 | |
| 3371 return NGX_OK; | |
| 3372 } | |
| 3373 | |
| 3374 | |
| 3375 static ngx_int_t | |
| 3376 ngx_http_grpc_validate_header_value(ngx_http_request_t *r, ngx_str_t *s) | |
| 3377 { | |
| 3378 u_char ch; | |
| 3379 ngx_uint_t i; | |
| 3380 | |
| 3381 for (i = 0; i < s->len; i++) { | |
| 3382 ch = s->data[i]; | |
| 3383 | |
| 3384 if (ch == '\0' || ch == CR || ch == LF) { | |
| 3385 return NGX_ERROR; | |
| 3386 } | |
| 3387 } | |
| 3388 | |
| 3389 return NGX_OK; | |
| 3390 } | |
| 3391 | |
| 3392 | |
| 3393 static ngx_int_t | |
| 3394 ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3395 ngx_buf_t *b) | |
| 3396 { | |
| 3397 u_char ch, *p, *last; | |
| 3398 enum { | |
| 3399 sw_start = 0, | |
| 3400 sw_error_2, | |
| 3401 sw_error_3, | |
| 3402 sw_error_4 | |
| 3403 } state; | |
| 3404 | |
| 3405 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3406 last = b->last; | |
| 3407 | |
| 3408 } else { | |
| 3409 last = b->pos + ctx->rest; | |
| 3410 } | |
| 3411 | |
| 3412 state = ctx->frame_state; | |
| 3413 | |
| 3414 if (state == sw_start) { | |
| 3415 if (ctx->rest != 4) { | |
| 3416 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3417 "upstream sent rst stream frame " | |
| 3418 "with invalid length: %uz", | |
| 3419 ctx->rest); | |
| 3420 return NGX_ERROR; | |
| 3421 } | |
| 3422 } | |
| 3423 | |
| 3424 for (p = b->pos; p < last; p++) { | |
| 3425 ch = *p; | |
| 3426 | |
| 3427 #if 0 | |
| 3428 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3429 "grpc rst byte: %02Xd s:%d", ch, state); | |
| 3430 #endif | |
| 3431 | |
| 3432 switch (state) { | |
| 3433 | |
| 3434 case sw_start: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3435 ctx->error = (ngx_uint_t) ch << 24; |
| 7233 | 3436 state = sw_error_2; |
| 3437 break; | |
| 3438 | |
| 3439 case sw_error_2: | |
| 3440 ctx->error |= ch << 16; | |
| 3441 state = sw_error_3; | |
| 3442 break; | |
| 3443 | |
| 3444 case sw_error_3: | |
| 3445 ctx->error |= ch << 8; | |
| 3446 state = sw_error_4; | |
| 3447 break; | |
| 3448 | |
| 3449 case sw_error_4: | |
| 3450 ctx->error |= ch; | |
| 3451 state = sw_start; | |
| 3452 | |
| 3453 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3454 "grpc error: %ui", ctx->error); | |
| 3455 | |
| 3456 break; | |
| 3457 } | |
| 3458 } | |
| 3459 | |
| 3460 ctx->rest -= p - b->pos; | |
| 3461 ctx->frame_state = state; | |
| 3462 b->pos = p; | |
| 3463 | |
| 3464 if (ctx->rest > 0) { | |
| 3465 return NGX_AGAIN; | |
| 3466 } | |
| 3467 | |
| 3468 return NGX_OK; | |
| 3469 } | |
| 3470 | |
| 3471 | |
| 3472 static ngx_int_t | |
| 3473 ngx_http_grpc_parse_goaway(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3474 ngx_buf_t *b) | |
| 3475 { | |
| 3476 u_char ch, *p, *last; | |
| 3477 enum { | |
| 3478 sw_start = 0, | |
| 3479 sw_last_stream_id_2, | |
| 3480 sw_last_stream_id_3, | |
| 3481 sw_last_stream_id_4, | |
| 3482 sw_error, | |
| 3483 sw_error_2, | |
| 3484 sw_error_3, | |
| 3485 sw_error_4, | |
| 3486 sw_debug | |
| 3487 } state; | |
| 3488 | |
| 3489 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3490 last = b->last; | |
| 3491 | |
| 3492 } else { | |
| 3493 last = b->pos + ctx->rest; | |
| 3494 } | |
| 3495 | |
| 3496 state = ctx->frame_state; | |
| 3497 | |
| 3498 if (state == sw_start) { | |
| 3499 | |
| 3500 if (ctx->stream_id) { | |
| 3501 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3502 "upstream sent goaway frame " | |
| 3503 "with non-zero stream id: %ui", | |
| 3504 ctx->stream_id); | |
| 3505 return NGX_ERROR; | |
| 3506 } | |
| 3507 | |
| 3508 if (ctx->rest < 8) { | |
| 3509 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3510 "upstream sent goaway frame " | |
| 3511 "with invalid length: %uz", | |
| 3512 ctx->rest); | |
| 3513 return NGX_ERROR; | |
| 3514 } | |
| 3515 } | |
| 3516 | |
| 3517 for (p = b->pos; p < last; p++) { | |
| 3518 ch = *p; | |
| 3519 | |
| 3520 #if 0 | |
| 3521 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3522 "grpc goaway byte: %02Xd s:%d", ch, state); | |
| 3523 #endif | |
| 3524 | |
| 3525 switch (state) { | |
| 3526 | |
| 3527 case sw_start: | |
| 3528 ctx->stream_id = (ch & 0x7f) << 24; | |
| 3529 state = sw_last_stream_id_2; | |
| 3530 break; | |
| 3531 | |
| 3532 case sw_last_stream_id_2: | |
| 3533 ctx->stream_id |= ch << 16; | |
| 3534 state = sw_last_stream_id_3; | |
| 3535 break; | |
| 3536 | |
| 3537 case sw_last_stream_id_3: | |
| 3538 ctx->stream_id |= ch << 8; | |
| 3539 state = sw_last_stream_id_4; | |
| 3540 break; | |
| 3541 | |
| 3542 case sw_last_stream_id_4: | |
| 3543 ctx->stream_id |= ch; | |
| 3544 state = sw_error; | |
| 3545 break; | |
| 3546 | |
| 3547 case sw_error: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3548 ctx->error = (ngx_uint_t) ch << 24; |
| 7233 | 3549 state = sw_error_2; |
| 3550 break; | |
| 3551 | |
| 3552 case sw_error_2: | |
| 3553 ctx->error |= ch << 16; | |
| 3554 state = sw_error_3; | |
| 3555 break; | |
| 3556 | |
| 3557 case sw_error_3: | |
| 3558 ctx->error |= ch << 8; | |
| 3559 state = sw_error_4; | |
| 3560 break; | |
| 3561 | |
| 3562 case sw_error_4: | |
| 3563 ctx->error |= ch; | |
| 3564 state = sw_debug; | |
| 3565 break; | |
| 3566 | |
| 3567 case sw_debug: | |
| 3568 break; | |
| 3569 } | |
| 3570 } | |
| 3571 | |
| 3572 ctx->rest -= p - b->pos; | |
| 3573 ctx->frame_state = state; | |
| 3574 b->pos = p; | |
| 3575 | |
| 3576 if (ctx->rest > 0) { | |
| 3577 return NGX_AGAIN; | |
| 3578 } | |
| 3579 | |
| 3580 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3581 "grpc goaway: %ui, stream %ui", | |
| 3582 ctx->error, ctx->stream_id); | |
| 3583 | |
| 3584 ctx->state = ngx_http_grpc_st_start; | |
| 3585 | |
| 3586 return NGX_OK; | |
| 3587 } | |
| 3588 | |
| 3589 | |
| 3590 static ngx_int_t | |
| 3591 ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
| 3592 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
| 3593 { | |
| 3594 u_char ch, *p, *last; | |
| 3595 enum { | |
| 3596 sw_start = 0, | |
| 3597 sw_size_2, | |
| 3598 sw_size_3, | |
| 3599 sw_size_4 | |
| 3600 } state; | |
| 3601 | |
| 3602 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3603 last = b->last; | |
| 3604 | |
| 3605 } else { | |
| 3606 last = b->pos + ctx->rest; | |
| 3607 } | |
| 3608 | |
| 3609 state = ctx->frame_state; | |
| 3610 | |
| 3611 if (state == sw_start) { | |
| 3612 if (ctx->rest != 4) { | |
| 3613 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3614 "upstream sent window update frame " | |
| 3615 "with invalid length: %uz", | |
| 3616 ctx->rest); | |
| 3617 return NGX_ERROR; | |
| 3618 } | |
| 3619 } | |
| 3620 | |
| 3621 for (p = b->pos; p < last; p++) { | |
| 3622 ch = *p; | |
| 3623 | |
| 3624 #if 0 | |
| 3625 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3626 "grpc window update byte: %02Xd s:%d", ch, state); | |
| 3627 #endif | |
| 3628 | |
| 3629 switch (state) { | |
| 3630 | |
| 3631 case sw_start: | |
| 3632 ctx->window_update = (ch & 0x7f) << 24; | |
| 3633 state = sw_size_2; | |
| 3634 break; | |
| 3635 | |
| 3636 case sw_size_2: | |
| 3637 ctx->window_update |= ch << 16; | |
| 3638 state = sw_size_3; | |
| 3639 break; | |
| 3640 | |
| 3641 case sw_size_3: | |
| 3642 ctx->window_update |= ch << 8; | |
| 3643 state = sw_size_4; | |
| 3644 break; | |
| 3645 | |
| 3646 case sw_size_4: | |
| 3647 ctx->window_update |= ch; | |
| 3648 state = sw_start; | |
| 3649 break; | |
| 3650 } | |
| 3651 } | |
| 3652 | |
| 3653 ctx->rest -= p - b->pos; | |
| 3654 ctx->frame_state = state; | |
| 3655 b->pos = p; | |
| 3656 | |
| 3657 if (ctx->rest > 0) { | |
| 3658 return NGX_AGAIN; | |
| 3659 } | |
| 3660 | |
| 3661 ctx->state = ngx_http_grpc_st_start; | |
| 3662 | |
| 3663 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3664 "grpc window update: %ui", ctx->window_update); | |
| 3665 | |
| 3666 if (ctx->stream_id) { | |
| 3667 | |
| 3668 if (ctx->window_update > (size_t) NGX_HTTP_V2_MAX_WINDOW | |
| 3669 - ctx->send_window) | |
| 3670 { | |
| 3671 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3672 "upstream sent too large window update"); | |
| 3673 return NGX_ERROR; | |
| 3674 } | |
| 3675 | |
| 3676 ctx->send_window += ctx->window_update; | |
| 3677 | |
| 3678 } else { | |
| 3679 | |
| 3680 if (ctx->window_update > NGX_HTTP_V2_MAX_WINDOW | |
| 3681 - ctx->connection->send_window) | |
| 3682 { | |
| 3683 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3684 "upstream sent too large window update"); | |
| 3685 return NGX_ERROR; | |
| 3686 } | |
| 3687 | |
| 3688 ctx->connection->send_window += ctx->window_update; | |
| 3689 } | |
| 3690 | |
| 3691 return NGX_OK; | |
| 3692 } | |
| 3693 | |
| 3694 | |
| 3695 static ngx_int_t | |
| 3696 ngx_http_grpc_parse_settings(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3697 ngx_buf_t *b) | |
| 3698 { | |
| 3699 u_char ch, *p, *last; | |
| 3700 ssize_t window_update; | |
| 3701 enum { | |
| 3702 sw_start = 0, | |
| 3703 sw_id, | |
| 3704 sw_id_2, | |
| 3705 sw_value, | |
| 3706 sw_value_2, | |
| 3707 sw_value_3, | |
| 3708 sw_value_4 | |
| 3709 } state; | |
| 3710 | |
| 3711 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3712 last = b->last; | |
| 3713 | |
| 3714 } else { | |
| 3715 last = b->pos + ctx->rest; | |
| 3716 } | |
| 3717 | |
| 3718 state = ctx->frame_state; | |
| 3719 | |
| 3720 if (state == sw_start) { | |
| 3721 | |
| 3722 if (ctx->stream_id) { | |
| 3723 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3724 "upstream sent settings frame " | |
| 3725 "with non-zero stream id: %ui", | |
| 3726 ctx->stream_id); | |
| 3727 return NGX_ERROR; | |
| 3728 } | |
| 3729 | |
| 3730 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
| 3731 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3732 "grpc settings ack"); | |
| 3733 | |
| 3734 if (ctx->rest != 0) { | |
| 3735 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3736 "upstream sent settings frame " | |
| 3737 "with ack flag and non-zero length: %uz", | |
| 3738 ctx->rest); | |
| 3739 return NGX_ERROR; | |
| 3740 } | |
| 3741 | |
| 3742 ctx->state = ngx_http_grpc_st_start; | |
| 3743 | |
| 3744 return NGX_OK; | |
| 3745 } | |
| 3746 | |
| 3747 if (ctx->rest % 6 != 0) { | |
| 3748 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3749 "upstream sent settings frame " | |
| 3750 "with invalid length: %uz", | |
| 3751 ctx->rest); | |
| 3752 return NGX_ERROR; | |
| 3753 } | |
|
7379
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3754 |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3755 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
|
3756 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
|
3757 "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
|
3758 return NGX_ERROR; |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3759 } |
| 7233 | 3760 } |
| 3761 | |
| 3762 for (p = b->pos; p < last; p++) { | |
| 3763 ch = *p; | |
| 3764 | |
| 3765 #if 0 | |
| 3766 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3767 "grpc settings byte: %02Xd s:%d", ch, state); | |
| 3768 #endif | |
| 3769 | |
| 3770 switch (state) { | |
| 3771 | |
| 3772 case sw_start: | |
| 3773 case sw_id: | |
| 3774 ctx->setting_id = ch << 8; | |
| 3775 state = sw_id_2; | |
| 3776 break; | |
| 3777 | |
| 3778 case sw_id_2: | |
| 3779 ctx->setting_id |= ch; | |
| 3780 state = sw_value; | |
| 3781 break; | |
| 3782 | |
| 3783 case sw_value: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3784 ctx->setting_value = (ngx_uint_t) ch << 24; |
| 7233 | 3785 state = sw_value_2; |
| 3786 break; | |
| 3787 | |
| 3788 case sw_value_2: | |
| 3789 ctx->setting_value |= ch << 16; | |
| 3790 state = sw_value_3; | |
| 3791 break; | |
| 3792 | |
| 3793 case sw_value_3: | |
| 3794 ctx->setting_value |= ch << 8; | |
| 3795 state = sw_value_4; | |
| 3796 break; | |
| 3797 | |
| 3798 case sw_value_4: | |
| 3799 ctx->setting_value |= ch; | |
| 3800 state = sw_id; | |
| 3801 | |
| 3802 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3803 "grpc setting: %ui %ui", | |
| 3804 ctx->setting_id, ctx->setting_value); | |
| 3805 | |
| 3806 /* | |
| 3807 * The following settings are defined by the protocol: | |
| 3808 * | |
| 3809 * SETTINGS_HEADER_TABLE_SIZE, SETTINGS_ENABLE_PUSH, | |
| 3810 * SETTINGS_MAX_CONCURRENT_STREAMS, SETTINGS_INITIAL_WINDOW_SIZE, | |
| 3811 * SETTINGS_MAX_FRAME_SIZE, SETTINGS_MAX_HEADER_LIST_SIZE | |
| 3812 * | |
| 3813 * Only SETTINGS_INITIAL_WINDOW_SIZE seems to be needed in | |
| 3814 * a simple client. | |
| 3815 */ | |
| 3816 | |
| 3817 if (ctx->setting_id == 0x04) { | |
| 3818 /* SETTINGS_INITIAL_WINDOW_SIZE */ | |
| 3819 | |
| 3820 if (ctx->setting_value > NGX_HTTP_V2_MAX_WINDOW) { | |
| 3821 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3822 "upstream sent settings frame " | |
| 3823 "with too large initial window size: %ui", | |
| 3824 ctx->setting_value); | |
| 3825 return NGX_ERROR; | |
| 3826 } | |
| 3827 | |
| 3828 window_update = ctx->setting_value | |
| 3829 - ctx->connection->init_window; | |
| 3830 ctx->connection->init_window = ctx->setting_value; | |
| 3831 | |
| 3832 if (ctx->send_window > 0 | |
| 3833 && window_update > (ssize_t) NGX_HTTP_V2_MAX_WINDOW | |
| 3834 - ctx->send_window) | |
| 3835 { | |
| 3836 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3837 "upstream sent settings frame " | |
| 3838 "with too large initial window size: %ui", | |
| 3839 ctx->setting_value); | |
| 3840 return NGX_ERROR; | |
| 3841 } | |
| 3842 | |
| 3843 ctx->send_window += window_update; | |
| 3844 } | |
| 3845 | |
| 3846 break; | |
| 3847 } | |
| 3848 } | |
| 3849 | |
| 3850 ctx->rest -= p - b->pos; | |
| 3851 ctx->frame_state = state; | |
| 3852 b->pos = p; | |
| 3853 | |
| 3854 if (ctx->rest > 0) { | |
| 3855 return NGX_AGAIN; | |
| 3856 } | |
| 3857 | |
| 3858 ctx->state = ngx_http_grpc_st_start; | |
| 3859 | |
| 3860 return ngx_http_grpc_send_settings_ack(r, ctx); | |
| 3861 } | |
| 3862 | |
| 3863 | |
| 3864 static ngx_int_t | |
| 3865 ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
| 3866 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
| 3867 { | |
| 3868 u_char ch, *p, *last; | |
| 3869 enum { | |
| 3870 sw_start = 0, | |
| 3871 sw_data_2, | |
| 3872 sw_data_3, | |
| 3873 sw_data_4, | |
| 3874 sw_data_5, | |
| 3875 sw_data_6, | |
| 3876 sw_data_7, | |
| 3877 sw_data_8 | |
| 3878 } state; | |
| 3879 | |
| 3880 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3881 last = b->last; | |
| 3882 | |
| 3883 } else { | |
| 3884 last = b->pos + ctx->rest; | |
| 3885 } | |
| 3886 | |
| 3887 state = ctx->frame_state; | |
| 3888 | |
| 3889 if (state == sw_start) { | |
| 3890 | |
| 3891 if (ctx->stream_id) { | |
| 3892 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3893 "upstream sent ping frame " | |
| 3894 "with non-zero stream id: %ui", | |
| 3895 ctx->stream_id); | |
| 3896 return NGX_ERROR; | |
| 3897 } | |
| 3898 | |
| 3899 if (ctx->rest != 8) { | |
| 3900 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3901 "upstream sent ping frame " | |
| 3902 "with invalid length: %uz", | |
| 3903 ctx->rest); | |
| 3904 return NGX_ERROR; | |
| 3905 } | |
| 3906 | |
| 3907 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
| 3908 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3909 "upstream sent ping frame with ack flag"); | |
| 3910 return NGX_ERROR; | |
| 3911 } | |
|
7379
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3912 |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3913 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
|
3914 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
|
3915 "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
|
3916 return NGX_ERROR; |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3917 } |
| 7233 | 3918 } |
| 3919 | |
| 3920 for (p = b->pos; p < last; p++) { | |
| 3921 ch = *p; | |
| 3922 | |
| 3923 #if 0 | |
| 3924 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3925 "grpc ping byte: %02Xd s:%d", ch, state); | |
| 3926 #endif | |
| 3927 | |
| 3928 if (state < sw_data_8) { | |
| 3929 ctx->ping_data[state] = ch; | |
| 3930 state++; | |
| 3931 | |
| 3932 } else { | |
| 3933 ctx->ping_data[7] = ch; | |
| 3934 state = sw_start; | |
| 3935 | |
| 3936 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3937 "grpc ping"); | |
| 3938 } | |
| 3939 } | |
| 3940 | |
| 3941 ctx->rest -= p - b->pos; | |
| 3942 ctx->frame_state = state; | |
| 3943 b->pos = p; | |
| 3944 | |
| 3945 if (ctx->rest > 0) { | |
| 3946 return NGX_AGAIN; | |
| 3947 } | |
| 3948 | |
| 3949 ctx->state = ngx_http_grpc_st_start; | |
| 3950 | |
| 3951 return ngx_http_grpc_send_ping_ack(r, ctx); | |
| 3952 } | |
| 3953 | |
| 3954 | |
| 3955 static ngx_int_t | |
| 3956 ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 3957 { | |
| 3958 ngx_chain_t *cl, **ll; | |
| 3959 ngx_http_grpc_frame_t *f; | |
| 3960 | |
| 3961 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3962 "grpc send settings ack"); | |
| 3963 | |
| 3964 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 3965 ll = &cl->next; | |
| 3966 } | |
| 3967 | |
| 3968 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 3969 if (cl == NULL) { | |
| 3970 return NGX_ERROR; | |
| 3971 } | |
| 3972 | |
| 3973 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 3974 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 3975 | |
| 3976 f->length_0 = 0; | |
| 3977 f->length_1 = 0; | |
| 3978 f->length_2 = 0; | |
| 3979 f->type = NGX_HTTP_V2_SETTINGS_FRAME; | |
| 3980 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
| 3981 f->stream_id_0 = 0; | |
| 3982 f->stream_id_1 = 0; | |
| 3983 f->stream_id_2 = 0; | |
| 3984 f->stream_id_3 = 0; | |
| 3985 | |
| 3986 *ll = cl; | |
| 3987 | |
| 3988 return NGX_OK; | |
| 3989 } | |
| 3990 | |
| 3991 | |
| 3992 static ngx_int_t | |
| 3993 ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 3994 { | |
| 3995 ngx_chain_t *cl, **ll; | |
| 3996 ngx_http_grpc_frame_t *f; | |
| 3997 | |
| 3998 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3999 "grpc send ping ack"); | |
| 4000 | |
| 4001 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 4002 ll = &cl->next; | |
| 4003 } | |
| 4004 | |
| 4005 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 4006 if (cl == NULL) { | |
| 4007 return NGX_ERROR; | |
| 4008 } | |
| 4009 | |
| 4010 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 4011 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 4012 | |
| 4013 f->length_0 = 0; | |
| 4014 f->length_1 = 0; | |
| 4015 f->length_2 = 8; | |
| 4016 f->type = NGX_HTTP_V2_PING_FRAME; | |
| 4017 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
| 4018 f->stream_id_0 = 0; | |
| 4019 f->stream_id_1 = 0; | |
| 4020 f->stream_id_2 = 0; | |
| 4021 f->stream_id_3 = 0; | |
| 4022 | |
| 4023 cl->buf->last = ngx_copy(cl->buf->last, ctx->ping_data, 8); | |
| 4024 | |
| 4025 *ll = cl; | |
| 4026 | |
| 4027 return NGX_OK; | |
| 4028 } | |
| 4029 | |
| 4030 | |
| 4031 static ngx_int_t | |
| 4032 ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
| 4033 ngx_http_grpc_ctx_t *ctx) | |
| 4034 { | |
| 4035 size_t n; | |
| 4036 ngx_chain_t *cl, **ll; | |
| 4037 ngx_http_grpc_frame_t *f; | |
| 4038 | |
| 4039 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4040 "grpc send window update: %uz %uz", | |
| 4041 ctx->connection->recv_window, ctx->recv_window); | |
| 4042 | |
| 4043 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 4044 ll = &cl->next; | |
| 4045 } | |
| 4046 | |
| 4047 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 4048 if (cl == NULL) { | |
| 4049 return NGX_ERROR; | |
| 4050 } | |
| 4051 | |
| 4052 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 4053 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 4054 | |
| 4055 f->length_0 = 0; | |
| 4056 f->length_1 = 0; | |
| 4057 f->length_2 = 4; | |
| 4058 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
| 4059 f->flags = 0; | |
| 4060 f->stream_id_0 = 0; | |
| 4061 f->stream_id_1 = 0; | |
| 4062 f->stream_id_2 = 0; | |
| 4063 f->stream_id_3 = 0; | |
| 4064 | |
| 4065 n = NGX_HTTP_V2_MAX_WINDOW - ctx->connection->recv_window; | |
| 4066 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4067 | |
| 4068 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
| 4069 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
| 4070 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
| 4071 *cl->buf->last++ = (u_char) (n & 0xff); | |
| 4072 | |
| 4073 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 4074 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 4075 | |
| 4076 f->length_0 = 0; | |
| 4077 f->length_1 = 0; | |
| 4078 f->length_2 = 4; | |
| 4079 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
| 4080 f->flags = 0; | |
| 4081 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 4082 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 4083 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 4084 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 4085 | |
| 4086 n = NGX_HTTP_V2_MAX_WINDOW - ctx->recv_window; | |
| 4087 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4088 | |
| 4089 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
| 4090 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
| 4091 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
| 4092 *cl->buf->last++ = (u_char) (n & 0xff); | |
| 4093 | |
| 4094 *ll = cl; | |
| 4095 | |
| 4096 return NGX_OK; | |
| 4097 } | |
| 4098 | |
| 4099 | |
| 4100 static ngx_chain_t * | |
| 4101 ngx_http_grpc_get_buf(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 4102 { | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4103 u_char *start; |
| 7233 | 4104 ngx_buf_t *b; |
| 4105 ngx_chain_t *cl; | |
| 4106 | |
| 4107 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
| 4108 if (cl == NULL) { | |
| 4109 return NULL; | |
| 4110 } | |
| 4111 | |
| 4112 b = cl->buf; | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4113 start = b->start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4114 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4115 if (start == NULL) { |
| 7233 | 4116 |
| 4117 /* | |
| 4118 * each buffer is large enough to hold two window update | |
| 4119 * frames in a row | |
| 4120 */ | |
| 4121 | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4122 start = ngx_palloc(r->pool, 2 * sizeof(ngx_http_grpc_frame_t) + 8); |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
4123 if (start == NULL) { |
| 7233 | 4124 return NULL; |
| 4125 } | |
| 4126 | |
| 4127 } | |
| 4128 | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
4129 ngx_memzero(b, sizeof(ngx_buf_t)); |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
7271
diff
changeset
|
4130 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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7271
diff
changeset
|
4131 b->start = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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diff
changeset
|
4132 b->pos = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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7271
diff
changeset
|
4133 b->last = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4134 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
|
4135 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
7271
diff
changeset
|
4136 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4137 b->temporary = 1; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4138 b->flush = 1; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
4139 |
| 7233 | 4140 return cl; |
| 4141 } | |
| 4142 | |
| 4143 | |
| 4144 static ngx_http_grpc_ctx_t * | |
| 4145 ngx_http_grpc_get_ctx(ngx_http_request_t *r) | |
| 4146 { | |
| 4147 ngx_http_grpc_ctx_t *ctx; | |
| 4148 ngx_http_upstream_t *u; | |
| 4149 | |
| 4150 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
| 4151 | |
| 4152 if (ctx->connection == NULL) { | |
| 4153 u = r->upstream; | |
| 4154 | |
| 4155 if (ngx_http_grpc_get_connection_data(r, ctx, &u->peer) != NGX_OK) { | |
| 4156 return NULL; | |
| 4157 } | |
| 4158 } | |
| 4159 | |
| 4160 return ctx; | |
| 4161 } | |
| 4162 | |
| 4163 | |
| 4164 static ngx_int_t | |
| 4165 ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
| 4166 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc) | |
| 4167 { | |
| 4168 ngx_connection_t *c; | |
| 4169 ngx_pool_cleanup_t *cln; | |
| 4170 | |
| 4171 c = pc->connection; | |
| 4172 | |
| 4173 if (pc->cached) { | |
| 4174 | |
| 4175 /* | |
| 4176 * for cached connections, connection data can be found | |
| 4177 * in the cleanup handler | |
| 4178 */ | |
| 4179 | |
| 4180 for (cln = c->pool->cleanup; cln; cln = cln->next) { | |
| 4181 if (cln->handler == ngx_http_grpc_cleanup) { | |
| 4182 ctx->connection = cln->data; | |
| 4183 break; | |
| 4184 } | |
| 4185 } | |
| 4186 | |
| 4187 if (ctx->connection == NULL) { | |
| 4188 ngx_log_error(NGX_LOG_ERR, c->log, 0, | |
| 4189 "no connection data found for " | |
| 4190 "keepalive http2 connection"); | |
| 4191 return NGX_ERROR; | |
| 4192 } | |
| 4193 | |
| 4194 ctx->send_window = ctx->connection->init_window; | |
| 4195 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4196 | |
| 4197 ctx->connection->last_stream_id += 2; | |
| 4198 ctx->id = ctx->connection->last_stream_id; | |
| 4199 | |
| 4200 return NGX_OK; | |
| 4201 } | |
| 4202 | |
| 4203 cln = ngx_pool_cleanup_add(c->pool, sizeof(ngx_http_grpc_conn_t)); | |
| 4204 if (cln == NULL) { | |
| 4205 return NGX_ERROR; | |
| 4206 } | |
| 4207 | |
| 4208 cln->handler = ngx_http_grpc_cleanup; | |
| 4209 ctx->connection = cln->data; | |
| 4210 | |
| 4211 ctx->connection->init_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4212 ctx->connection->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4213 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4214 | |
| 4215 ctx->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4216 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4217 | |
| 4218 ctx->id = 1; | |
| 4219 ctx->connection->last_stream_id = 1; | |
| 4220 | |
| 4221 return NGX_OK; | |
| 4222 } | |
| 4223 | |
| 4224 | |
| 4225 static void | |
| 4226 ngx_http_grpc_cleanup(void *data) | |
| 4227 { | |
| 4228 #if 0 | |
| 4229 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 4230 "grpc cleanup"); | |
| 4231 #endif | |
| 4232 return; | |
| 4233 } | |
| 4234 | |
| 4235 | |
| 4236 static void | |
| 4237 ngx_http_grpc_abort_request(ngx_http_request_t *r) | |
| 4238 { | |
| 4239 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4240 "abort grpc request"); | |
| 4241 return; | |
| 4242 } | |
| 4243 | |
| 4244 | |
| 4245 static void | |
| 4246 ngx_http_grpc_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
| 4247 { | |
| 4248 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4249 "finalize grpc request"); | |
| 4250 return; | |
| 4251 } | |
| 4252 | |
| 4253 | |
|
7234
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4254 static ngx_int_t |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4255 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
|
4256 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
|
4257 { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4258 ngx_table_elt_t *te; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4259 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4260 te = r->headers_in.te; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4261 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4262 if (te == NULL) { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4263 v->not_found = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4264 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4265 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4266 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4267 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
|
4268 (u_char *) "trailers", 8 - 1) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4269 == NULL) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4270 { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4271 v->not_found = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4272 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4273 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4274 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4275 v->valid = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4276 v->no_cacheable = 0; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4277 v->not_found = 0; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4278 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4279 v->data = (u_char *) "trailers"; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4280 v->len = sizeof("trailers") - 1; |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4281 |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4282 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4283 } |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4284 |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4285 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4286 static ngx_int_t |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4287 ngx_http_grpc_add_variables(ngx_conf_t *cf) |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4288 { |
|
c693daca57f7
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7233
diff
changeset
|
4289 ngx_http_variable_t *var, *v; |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
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changeset
|
4290 |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4291 for (v = ngx_http_grpc_vars; v->name.len; v++) { |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4292 var = ngx_http_add_variable(cf, &v->name, v->flags); |
|
c693daca57f7
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7233
diff
changeset
|
4293 if (var == NULL) { |
|
c693daca57f7
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7233
diff
changeset
|
4294 return NGX_ERROR; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4295 } |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4296 |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4297 var->get_handler = v->get_handler; |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4298 var->data = v->data; |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4299 } |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4300 |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4301 return NGX_OK; |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4302 } |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4303 |
|
c693daca57f7
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7233
diff
changeset
|
4304 |
| 7233 | 4305 static void * |
| 4306 ngx_http_grpc_create_loc_conf(ngx_conf_t *cf) | |
| 4307 { | |
| 4308 ngx_http_grpc_loc_conf_t *conf; | |
| 4309 | |
| 4310 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_grpc_loc_conf_t)); | |
| 4311 if (conf == NULL) { | |
| 4312 return NULL; | |
| 4313 } | |
| 4314 | |
| 4315 /* | |
| 4316 * set by ngx_pcalloc(): | |
| 4317 * | |
| 4318 * conf->upstream.ignore_headers = 0; | |
| 4319 * conf->upstream.next_upstream = 0; | |
| 4320 * conf->upstream.hide_headers_hash = { NULL, 0 }; | |
| 4321 * conf->upstream.ssl_name = NULL; | |
| 4322 * | |
| 4323 * conf->headers.lengths = NULL; | |
| 4324 * conf->headers.values = NULL; | |
| 4325 * conf->headers.hash = { NULL, 0 }; | |
| 4326 * conf->host = { 0, NULL }; | |
| 4327 * conf->host_set = 0; | |
| 4328 * conf->ssl = 0; | |
| 4329 * conf->ssl_protocols = 0; | |
| 4330 * conf->ssl_ciphers = { 0, NULL }; | |
| 4331 * conf->ssl_trusted_certificate = { 0, NULL }; | |
| 4332 * conf->ssl_crl = { 0, NULL }; | |
| 4333 * conf->ssl_certificate = { 0, NULL }; | |
| 4334 * conf->ssl_certificate_key = { 0, NULL }; | |
| 4335 */ | |
| 4336 | |
| 4337 conf->upstream.local = NGX_CONF_UNSET_PTR; | |
|
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4338 conf->upstream.socket_keepalive = NGX_CONF_UNSET; |
| 7233 | 4339 conf->upstream.next_upstream_tries = NGX_CONF_UNSET_UINT; |
| 4340 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; | |
| 4341 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
| 4342 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
| 4343 conf->upstream.next_upstream_timeout = NGX_CONF_UNSET_MSEC; | |
| 4344 | |
| 4345 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
| 4346 | |
| 4347 conf->upstream.hide_headers = NGX_CONF_UNSET_PTR; | |
| 4348 conf->upstream.pass_headers = NGX_CONF_UNSET_PTR; | |
| 4349 | |
| 4350 conf->upstream.intercept_errors = NGX_CONF_UNSET; | |
| 4351 | |
| 4352 #if (NGX_HTTP_SSL) | |
| 4353 conf->upstream.ssl_session_reuse = NGX_CONF_UNSET; | |
| 4354 conf->upstream.ssl_server_name = NGX_CONF_UNSET; | |
| 4355 conf->upstream.ssl_verify = NGX_CONF_UNSET; | |
| 4356 conf->ssl_verify_depth = NGX_CONF_UNSET_UINT; | |
| 4357 conf->ssl_passwords = NGX_CONF_UNSET_PTR; | |
|
7730
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4358 conf->ssl_conf_commands = NGX_CONF_UNSET_PTR; |
| 7233 | 4359 #endif |
| 4360 | |
| 4361 /* the hardcoded values */ | |
| 4362 conf->upstream.cyclic_temp_file = 0; | |
| 4363 conf->upstream.buffering = 0; | |
| 4364 conf->upstream.ignore_client_abort = 0; | |
| 4365 conf->upstream.send_lowat = 0; | |
| 4366 conf->upstream.bufs.num = 0; | |
| 4367 conf->upstream.busy_buffers_size = 0; | |
| 4368 conf->upstream.max_temp_file_size = 0; | |
| 4369 conf->upstream.temp_file_write_size = 0; | |
| 4370 conf->upstream.pass_request_headers = 1; | |
| 4371 conf->upstream.pass_request_body = 1; | |
| 4372 conf->upstream.force_ranges = 0; | |
| 4373 conf->upstream.pass_trailers = 1; | |
| 4374 conf->upstream.preserve_output = 1; | |
| 4375 | |
|
7728
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4376 conf->headers_source = NGX_CONF_UNSET_PTR; |
|
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4377 |
| 7233 | 4378 ngx_str_set(&conf->upstream.module, "grpc"); |
| 4379 | |
| 4380 return conf; | |
| 4381 } | |
| 4382 | |
| 4383 | |
| 4384 static char * | |
| 4385 ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 4386 { | |
| 4387 ngx_http_grpc_loc_conf_t *prev = parent; | |
| 4388 ngx_http_grpc_loc_conf_t *conf = child; | |
| 4389 | |
| 4390 ngx_int_t rc; | |
| 4391 ngx_hash_init_t hash; | |
| 4392 ngx_http_core_loc_conf_t *clcf; | |
| 4393 | |
| 4394 ngx_conf_merge_ptr_value(conf->upstream.local, | |
| 4395 prev->upstream.local, NULL); | |
| 4396 | |
|
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4397 ngx_conf_merge_value(conf->upstream.socket_keepalive, |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4398 prev->upstream.socket_keepalive, 0); |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4399 |
| 7233 | 4400 ngx_conf_merge_uint_value(conf->upstream.next_upstream_tries, |
| 4401 prev->upstream.next_upstream_tries, 0); | |
| 4402 | |
| 4403 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, | |
| 4404 prev->upstream.connect_timeout, 60000); | |
| 4405 | |
| 4406 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
| 4407 prev->upstream.send_timeout, 60000); | |
| 4408 | |
| 4409 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
| 4410 prev->upstream.read_timeout, 60000); | |
| 4411 | |
| 4412 ngx_conf_merge_msec_value(conf->upstream.next_upstream_timeout, | |
| 4413 prev->upstream.next_upstream_timeout, 0); | |
| 4414 | |
| 4415 ngx_conf_merge_size_value(conf->upstream.buffer_size, | |
| 4416 prev->upstream.buffer_size, | |
| 4417 (size_t) ngx_pagesize); | |
| 4418 | |
| 4419 ngx_conf_merge_bitmask_value(conf->upstream.ignore_headers, | |
| 4420 prev->upstream.ignore_headers, | |
| 4421 NGX_CONF_BITMASK_SET); | |
| 4422 | |
| 4423 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
| 4424 prev->upstream.next_upstream, | |
| 4425 (NGX_CONF_BITMASK_SET | |
| 4426 |NGX_HTTP_UPSTREAM_FT_ERROR | |
| 4427 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
| 4428 | |
| 4429 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { | |
| 4430 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
| 4431 |NGX_HTTP_UPSTREAM_FT_OFF; | |
| 4432 } | |
| 4433 | |
| 4434 ngx_conf_merge_value(conf->upstream.intercept_errors, | |
| 4435 prev->upstream.intercept_errors, 0); | |
| 4436 | |
| 4437 #if (NGX_HTTP_SSL) | |
| 4438 | |
| 4439 ngx_conf_merge_value(conf->upstream.ssl_session_reuse, | |
| 4440 prev->upstream.ssl_session_reuse, 1); | |
| 4441 | |
| 4442 ngx_conf_merge_bitmask_value(conf->ssl_protocols, prev->ssl_protocols, | |
| 4443 (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1 | |
| 4444 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); | |
| 4445 | |
| 4446 ngx_conf_merge_str_value(conf->ssl_ciphers, prev->ssl_ciphers, | |
| 4447 "DEFAULT"); | |
| 4448 | |
| 4449 if (conf->upstream.ssl_name == NULL) { | |
| 4450 conf->upstream.ssl_name = prev->upstream.ssl_name; | |
| 4451 } | |
| 4452 | |
| 4453 ngx_conf_merge_value(conf->upstream.ssl_server_name, | |
| 4454 prev->upstream.ssl_server_name, 0); | |
| 4455 ngx_conf_merge_value(conf->upstream.ssl_verify, | |
| 4456 prev->upstream.ssl_verify, 0); | |
| 4457 ngx_conf_merge_uint_value(conf->ssl_verify_depth, | |
| 4458 prev->ssl_verify_depth, 1); | |
| 4459 ngx_conf_merge_str_value(conf->ssl_trusted_certificate, | |
| 4460 prev->ssl_trusted_certificate, ""); | |
| 4461 ngx_conf_merge_str_value(conf->ssl_crl, prev->ssl_crl, ""); | |
| 4462 | |
| 4463 ngx_conf_merge_str_value(conf->ssl_certificate, | |
| 4464 prev->ssl_certificate, ""); | |
| 4465 ngx_conf_merge_str_value(conf->ssl_certificate_key, | |
| 4466 prev->ssl_certificate_key, ""); | |
| 4467 ngx_conf_merge_ptr_value(conf->ssl_passwords, prev->ssl_passwords, NULL); | |
| 4468 | |
|
7730
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4469 ngx_conf_merge_ptr_value(conf->ssl_conf_commands, |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4470 prev->ssl_conf_commands, NULL); |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4471 |
| 7233 | 4472 if (conf->ssl && ngx_http_grpc_set_ssl(cf, conf) != NGX_OK) { |
| 4473 return NGX_CONF_ERROR; | |
| 4474 } | |
| 4475 | |
| 4476 #endif | |
| 4477 | |
| 4478 hash.max_size = 512; | |
| 4479 hash.bucket_size = ngx_align(64, ngx_cacheline_size); | |
| 4480 hash.name = "grpc_headers_hash"; | |
| 4481 | |
| 4482 if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream, | |
| 4483 &prev->upstream, ngx_http_grpc_hide_headers, &hash) | |
| 4484 != NGX_OK) | |
| 4485 { | |
| 4486 return NGX_CONF_ERROR; | |
| 4487 } | |
| 4488 | |
| 4489 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
| 4490 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4491 if (clcf->noname |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4492 && 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
|
4493 { |
| 7233 | 4494 conf->upstream.upstream = prev->upstream.upstream; |
| 4495 conf->host = prev->host; | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4496 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4497 conf->grpc_lengths = prev->grpc_lengths; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4498 conf->grpc_values = prev->grpc_values; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4499 |
| 7233 | 4500 #if (NGX_HTTP_SSL) |
| 4501 conf->upstream.ssl = prev->upstream.ssl; | |
| 4502 #endif | |
| 4503 } | |
| 4504 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4505 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
|
4506 && (conf->upstream.upstream || conf->grpc_lengths)) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4507 { |
| 7233 | 4508 clcf->handler = ngx_http_grpc_handler; |
| 4509 } | |
| 4510 | |
|
7728
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4511 ngx_conf_merge_ptr_value(conf->headers_source, prev->headers_source, NULL); |
|
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4512 |
|
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4513 if (conf->headers_source == prev->headers_source) { |
| 7233 | 4514 conf->headers = prev->headers; |
| 4515 conf->host_set = prev->host_set; | |
| 4516 } | |
| 4517 | |
| 4518 rc = ngx_http_grpc_init_headers(cf, conf, &conf->headers, | |
| 4519 ngx_http_grpc_headers); | |
| 4520 if (rc != NGX_OK) { | |
| 4521 return NGX_CONF_ERROR; | |
| 4522 } | |
| 4523 | |
| 4524 /* | |
| 4525 * special handling to preserve conf->headers in the "http" section | |
| 4526 * to inherit it to all servers | |
| 4527 */ | |
| 4528 | |
| 4529 if (prev->headers.hash.buckets == NULL | |
| 4530 && conf->headers_source == prev->headers_source) | |
| 4531 { | |
| 4532 prev->headers = conf->headers; | |
| 4533 prev->host_set = conf->host_set; | |
| 4534 } | |
| 4535 | |
| 4536 return NGX_CONF_OK; | |
| 4537 } | |
| 4538 | |
| 4539 | |
| 4540 static ngx_int_t | |
| 4541 ngx_http_grpc_init_headers(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *conf, | |
| 4542 ngx_http_grpc_headers_t *headers, ngx_keyval_t *default_headers) | |
| 4543 { | |
| 4544 u_char *p; | |
| 4545 size_t size; | |
| 4546 uintptr_t *code; | |
| 4547 ngx_uint_t i; | |
| 4548 ngx_array_t headers_names, headers_merged; | |
| 4549 ngx_keyval_t *src, *s, *h; | |
| 4550 ngx_hash_key_t *hk; | |
| 4551 ngx_hash_init_t hash; | |
| 4552 ngx_http_script_compile_t sc; | |
| 4553 ngx_http_script_copy_code_t *copy; | |
| 4554 | |
| 4555 if (headers->hash.buckets) { | |
| 4556 return NGX_OK; | |
| 4557 } | |
| 4558 | |
| 4559 if (ngx_array_init(&headers_names, cf->temp_pool, 4, sizeof(ngx_hash_key_t)) | |
| 4560 != NGX_OK) | |
| 4561 { | |
| 4562 return NGX_ERROR; | |
| 4563 } | |
| 4564 | |
| 4565 if (ngx_array_init(&headers_merged, cf->temp_pool, 4, sizeof(ngx_keyval_t)) | |
| 4566 != NGX_OK) | |
| 4567 { | |
| 4568 return NGX_ERROR; | |
| 4569 } | |
| 4570 | |
| 4571 headers->lengths = ngx_array_create(cf->pool, 64, 1); | |
| 4572 if (headers->lengths == NULL) { | |
| 4573 return NGX_ERROR; | |
| 4574 } | |
| 4575 | |
| 4576 headers->values = ngx_array_create(cf->pool, 512, 1); | |
| 4577 if (headers->values == NULL) { | |
| 4578 return NGX_ERROR; | |
| 4579 } | |
| 4580 | |
| 4581 if (conf->headers_source) { | |
| 4582 | |
| 4583 src = conf->headers_source->elts; | |
| 4584 for (i = 0; i < conf->headers_source->nelts; i++) { | |
| 4585 | |
| 4586 if (src[i].key.len == 4 | |
| 4587 && ngx_strncasecmp(src[i].key.data, (u_char *) "Host", 4) == 0) | |
| 4588 { | |
| 4589 conf->host_set = 1; | |
| 4590 } | |
| 4591 | |
| 4592 s = ngx_array_push(&headers_merged); | |
| 4593 if (s == NULL) { | |
| 4594 return NGX_ERROR; | |
| 4595 } | |
| 4596 | |
| 4597 *s = src[i]; | |
| 4598 } | |
| 4599 } | |
| 4600 | |
| 4601 h = default_headers; | |
| 4602 | |
| 4603 while (h->key.len) { | |
| 4604 | |
| 4605 src = headers_merged.elts; | |
| 4606 for (i = 0; i < headers_merged.nelts; i++) { | |
| 4607 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) { | |
| 4608 goto next; | |
| 4609 } | |
| 4610 } | |
| 4611 | |
| 4612 s = ngx_array_push(&headers_merged); | |
| 4613 if (s == NULL) { | |
| 4614 return NGX_ERROR; | |
| 4615 } | |
| 4616 | |
| 4617 *s = *h; | |
| 4618 | |
| 4619 next: | |
| 4620 | |
| 4621 h++; | |
| 4622 } | |
| 4623 | |
| 4624 | |
| 4625 src = headers_merged.elts; | |
| 4626 for (i = 0; i < headers_merged.nelts; i++) { | |
| 4627 | |
| 4628 hk = ngx_array_push(&headers_names); | |
| 4629 if (hk == NULL) { | |
| 4630 return NGX_ERROR; | |
| 4631 } | |
| 4632 | |
| 4633 hk->key = src[i].key; | |
| 4634 hk->key_hash = ngx_hash_key_lc(src[i].key.data, src[i].key.len); | |
| 4635 hk->value = (void *) 1; | |
| 4636 | |
| 4637 if (src[i].value.len == 0) { | |
| 4638 continue; | |
| 4639 } | |
| 4640 | |
| 4641 copy = ngx_array_push_n(headers->lengths, | |
| 4642 sizeof(ngx_http_script_copy_code_t)); | |
| 4643 if (copy == NULL) { | |
| 4644 return NGX_ERROR; | |
| 4645 } | |
| 4646 | |
|
7271
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
7249
diff
changeset
|
4647 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
|
4648 ngx_http_script_copy_len_code; |
| 7233 | 4649 copy->len = src[i].key.len; |
| 4650 | |
| 4651 size = (sizeof(ngx_http_script_copy_code_t) | |
| 4652 + src[i].key.len + sizeof(uintptr_t) - 1) | |
| 4653 & ~(sizeof(uintptr_t) - 1); | |
| 4654 | |
| 4655 copy = ngx_array_push_n(headers->values, size); | |
| 4656 if (copy == NULL) { | |
| 4657 return NGX_ERROR; | |
| 4658 } | |
| 4659 | |
| 4660 copy->code = ngx_http_script_copy_code; | |
| 4661 copy->len = src[i].key.len; | |
| 4662 | |
| 4663 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); | |
| 4664 ngx_memcpy(p, src[i].key.data, src[i].key.len); | |
| 4665 | |
| 4666 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
| 4667 | |
| 4668 sc.cf = cf; | |
| 4669 sc.source = &src[i].value; | |
| 4670 sc.flushes = &headers->flushes; | |
| 4671 sc.lengths = &headers->lengths; | |
| 4672 sc.values = &headers->values; | |
| 4673 | |
| 4674 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
| 4675 return NGX_ERROR; | |
| 4676 } | |
| 4677 | |
| 4678 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
| 4679 if (code == NULL) { | |
| 4680 return NGX_ERROR; | |
| 4681 } | |
| 4682 | |
| 4683 *code = (uintptr_t) NULL; | |
| 4684 | |
| 4685 code = ngx_array_push_n(headers->values, sizeof(uintptr_t)); | |
| 4686 if (code == NULL) { | |
| 4687 return NGX_ERROR; | |
| 4688 } | |
| 4689 | |
| 4690 *code = (uintptr_t) NULL; | |
| 4691 } | |
| 4692 | |
| 4693 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
| 4694 if (code == NULL) { | |
| 4695 return NGX_ERROR; | |
| 4696 } | |
| 4697 | |
| 4698 *code = (uintptr_t) NULL; | |
| 4699 | |
| 4700 | |
| 4701 hash.hash = &headers->hash; | |
| 4702 hash.key = ngx_hash_key_lc; | |
| 4703 hash.max_size = 512; | |
| 4704 hash.bucket_size = 64; | |
| 4705 hash.name = "grpc_headers_hash"; | |
| 4706 hash.pool = cf->pool; | |
| 4707 hash.temp_pool = NULL; | |
| 4708 | |
| 4709 return ngx_hash_init(&hash, headers_names.elts, headers_names.nelts); | |
| 4710 } | |
| 4711 | |
| 4712 | |
| 4713 static char * | |
| 4714 ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 4715 { | |
| 4716 ngx_http_grpc_loc_conf_t *glcf = conf; | |
| 4717 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4718 size_t add; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4719 ngx_str_t *value, *url; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4720 ngx_url_t u; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4721 ngx_uint_t n; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4722 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
|
4723 ngx_http_script_compile_t sc; |
|
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 if (glcf->upstream.upstream || glcf->grpc_lengths) { |
| 7233 | 4726 return "is duplicate"; |
| 4727 } | |
| 4728 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4729 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
|
4730 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4731 clcf->handler = ngx_http_grpc_handler; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4732 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4733 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
|
4734 clcf->auto_redirect = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4735 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4736 |
| 7233 | 4737 value = cf->args->elts; |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4738 |
| 7233 | 4739 url = &value[1]; |
| 4740 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4741 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
|
4742 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4743 if (n) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4744 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4745 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
|
4746 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4747 sc.cf = cf; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4748 sc.source = url; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4749 sc.lengths = &glcf->grpc_lengths; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4750 sc.values = &glcf->grpc_values; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4751 sc.variables = n; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4752 sc.complete_lengths = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4753 sc.complete_values = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4754 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4755 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
|
4756 return NGX_CONF_ERROR; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4757 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4758 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4759 #if (NGX_HTTP_SSL) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4760 glcf->ssl = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4761 #endif |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4762 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4763 return NGX_CONF_OK; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4764 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4765 |
| 7233 | 4766 if (ngx_strncasecmp(url->data, (u_char *) "grpc://", 7) == 0) { |
| 4767 add = 7; | |
| 4768 | |
| 4769 } else if (ngx_strncasecmp(url->data, (u_char *) "grpcs://", 8) == 0) { | |
| 4770 | |
| 4771 #if (NGX_HTTP_SSL) | |
| 4772 glcf->ssl = 1; | |
| 4773 | |
| 4774 add = 8; | |
| 4775 #else | |
| 4776 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 4777 "grpcs protocol requires SSL support"); | |
| 4778 return NGX_CONF_ERROR; | |
| 4779 #endif | |
| 4780 | |
| 4781 } else { | |
| 4782 add = 0; | |
| 4783 } | |
| 4784 | |
| 4785 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 4786 | |
| 4787 u.url.len = url->len - add; | |
| 4788 u.url.data = url->data + add; | |
| 4789 u.no_resolve = 1; | |
| 4790 | |
| 4791 glcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); | |
| 4792 if (glcf->upstream.upstream == NULL) { | |
| 4793 return NGX_CONF_ERROR; | |
| 4794 } | |
| 4795 | |
| 4796 if (u.family != AF_UNIX) { | |
| 4797 | |
| 4798 if (u.no_port) { | |
| 4799 glcf->host = u.host; | |
| 4800 | |
| 4801 } else { | |
| 4802 glcf->host.len = u.host.len + 1 + u.port_text.len; | |
| 4803 glcf->host.data = u.host.data; | |
| 4804 } | |
| 4805 | |
| 4806 } else { | |
| 4807 ngx_str_set(&glcf->host, "localhost"); | |
| 4808 } | |
| 4809 | |
| 4810 return NGX_CONF_OK; | |
| 4811 } | |
| 4812 | |
| 4813 | |
| 4814 #if (NGX_HTTP_SSL) | |
| 4815 | |
| 4816 static char * | |
| 4817 ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 4818 { | |
| 4819 ngx_http_grpc_loc_conf_t *glcf = conf; | |
| 4820 | |
| 4821 ngx_str_t *value; | |
| 4822 | |
| 4823 if (glcf->ssl_passwords != NGX_CONF_UNSET_PTR) { | |
| 4824 return "is duplicate"; | |
| 4825 } | |
| 4826 | |
| 4827 value = cf->args->elts; | |
| 4828 | |
| 4829 glcf->ssl_passwords = ngx_ssl_read_password_file(cf, &value[1]); | |
| 4830 | |
| 4831 if (glcf->ssl_passwords == NULL) { | |
| 4832 return NGX_CONF_ERROR; | |
| 4833 } | |
| 4834 | |
| 4835 return NGX_CONF_OK; | |
| 4836 } | |
| 4837 | |
| 4838 | |
|
7730
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4839 static char * |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4840 ngx_http_grpc_ssl_conf_command_check(ngx_conf_t *cf, void *post, void *data) |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4841 { |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4842 #ifndef SSL_CONF_FLAG_FILE |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4843 return "is not supported on this platform"; |
|
7787
7ce28b4cc57e
SSL: fixed build by Sun C with old OpenSSL versions.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7746
diff
changeset
|
4844 #else |
|
7ce28b4cc57e
SSL: fixed build by Sun C with old OpenSSL versions.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7746
diff
changeset
|
4845 return NGX_CONF_OK; |
|
7730
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4846 #endif |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4847 } |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4848 |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4849 |
| 7233 | 4850 static ngx_int_t |
| 4851 ngx_http_grpc_set_ssl(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *glcf) | |
| 4852 { | |
| 4853 ngx_pool_cleanup_t *cln; | |
| 4854 | |
| 4855 glcf->upstream.ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t)); | |
| 4856 if (glcf->upstream.ssl == NULL) { | |
| 4857 return NGX_ERROR; | |
| 4858 } | |
| 4859 | |
| 4860 glcf->upstream.ssl->log = cf->log; | |
| 4861 | |
| 4862 if (ngx_ssl_create(glcf->upstream.ssl, glcf->ssl_protocols, NULL) | |
| 4863 != NGX_OK) | |
| 4864 { | |
| 4865 return NGX_ERROR; | |
| 4866 } | |
| 4867 | |
| 4868 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
| 4869 if (cln == NULL) { | |
|
7473
8981dbb12254
SSL: fixed potential leak on memory allocation errors.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7379
diff
changeset
|
4870 ngx_ssl_cleanup_ctx(glcf->upstream.ssl); |
| 7233 | 4871 return NGX_ERROR; |
| 4872 } | |
| 4873 | |
| 4874 cln->handler = ngx_ssl_cleanup_ctx; | |
| 4875 cln->data = glcf->upstream.ssl; | |
| 4876 | |
| 4877 if (glcf->ssl_certificate.len) { | |
| 4878 | |
| 4879 if (glcf->ssl_certificate_key.len == 0) { | |
| 4880 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4881 "no \"grpc_ssl_certificate_key\" is defined " | |
| 4882 "for certificate \"%V\"", &glcf->ssl_certificate); | |
| 4883 return NGX_ERROR; | |
| 4884 } | |
| 4885 | |
| 4886 if (ngx_ssl_certificate(cf, glcf->upstream.ssl, &glcf->ssl_certificate, | |
| 4887 &glcf->ssl_certificate_key, glcf->ssl_passwords) | |
| 4888 != NGX_OK) | |
| 4889 { | |
| 4890 return NGX_ERROR; | |
| 4891 } | |
| 4892 } | |
| 4893 | |
| 4894 if (ngx_ssl_ciphers(cf, glcf->upstream.ssl, &glcf->ssl_ciphers, 0) | |
| 4895 != NGX_OK) | |
| 4896 { | |
| 4897 return NGX_ERROR; | |
| 4898 } | |
| 4899 | |
| 4900 if (glcf->upstream.ssl_verify) { | |
| 4901 if (glcf->ssl_trusted_certificate.len == 0) { | |
| 4902 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4903 "no grpc_ssl_trusted_certificate for grpc_ssl_verify"); | |
| 4904 return NGX_ERROR; | |
| 4905 } | |
| 4906 | |
| 4907 if (ngx_ssl_trusted_certificate(cf, glcf->upstream.ssl, | |
| 4908 &glcf->ssl_trusted_certificate, | |
| 4909 glcf->ssl_verify_depth) | |
| 4910 != NGX_OK) | |
| 4911 { | |
| 4912 return NGX_ERROR; | |
| 4913 } | |
| 4914 | |
| 4915 if (ngx_ssl_crl(cf, glcf->upstream.ssl, &glcf->ssl_crl) != NGX_OK) { | |
| 4916 return NGX_ERROR; | |
| 4917 } | |
| 4918 } | |
| 4919 | |
|
7320
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4920 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
|
4921 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
|
4922 != NGX_OK) |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4923 { |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4924 return NGX_ERROR; |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4925 } |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4926 |
| 7233 | 4927 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
| 4928 | |
| 4929 if (SSL_CTX_set_alpn_protos(glcf->upstream.ssl->ctx, | |
| 4930 (u_char *) "\x02h2", 3) | |
| 4931 != 0) | |
| 4932 { | |
| 4933 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4934 "SSL_CTX_set_alpn_protos() failed"); | |
| 4935 return NGX_ERROR; | |
| 4936 } | |
| 4937 | |
| 4938 #endif | |
| 4939 | |
|
7730
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4940 if (ngx_ssl_conf_commands(cf, glcf->upstream.ssl, glcf->ssl_conf_commands) |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4941 != NGX_OK) |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4942 { |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4943 return NGX_ERROR; |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4944 } |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4945 |
| 7233 | 4946 return NGX_OK; |
| 4947 } | |
| 4948 | |
| 4949 #endif |