Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_grpc_module.c @ 8734:f5732fa038ad stable-1.20
gRPC: handling GOAWAY with a higher last stream identifier.
Previously, once received from upstream, it couldn't limit
opening additional streams in a cached keepalive connection.
| author | Sergey Kandaurov <pluknet@nginx.com> |
|---|---|
| date | Thu, 17 Jun 2021 11:43:55 +0300 |
| parents | 6df9d7df2784 |
| children |
| 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; |
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127 unsigned goaway:1; |
| 7233 | 128 |
| 129 ngx_http_request_t *request; | |
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130 |
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131 ngx_str_t host; |
| 7233 | 132 } ngx_http_grpc_ctx_t; |
| 133 | |
| 134 | |
| 135 typedef struct { | |
| 136 u_char length_0; | |
| 137 u_char length_1; | |
| 138 u_char length_2; | |
| 139 u_char type; | |
| 140 u_char flags; | |
| 141 u_char stream_id_0; | |
| 142 u_char stream_id_1; | |
| 143 u_char stream_id_2; | |
| 144 u_char stream_id_3; | |
| 145 } ngx_http_grpc_frame_t; | |
| 146 | |
| 147 | |
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148 static ngx_int_t ngx_http_grpc_eval(ngx_http_request_t *r, |
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149 ngx_http_grpc_ctx_t *ctx, ngx_http_grpc_loc_conf_t *glcf); |
| 7233 | 150 static ngx_int_t ngx_http_grpc_create_request(ngx_http_request_t *r); |
| 151 static ngx_int_t ngx_http_grpc_reinit_request(ngx_http_request_t *r); | |
| 152 static ngx_int_t ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in); | |
| 153 static ngx_int_t ngx_http_grpc_process_header(ngx_http_request_t *r); | |
| 154 static ngx_int_t ngx_http_grpc_filter_init(void *data); | |
| 155 static ngx_int_t ngx_http_grpc_filter(void *data, ssize_t bytes); | |
| 156 | |
| 157 static ngx_int_t ngx_http_grpc_parse_frame(ngx_http_request_t *r, | |
| 158 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 159 static ngx_int_t ngx_http_grpc_parse_header(ngx_http_request_t *r, | |
| 160 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 161 static ngx_int_t ngx_http_grpc_parse_fragment(ngx_http_request_t *r, | |
| 162 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 163 static ngx_int_t ngx_http_grpc_validate_header_name(ngx_http_request_t *r, | |
| 164 ngx_str_t *s); | |
| 165 static ngx_int_t ngx_http_grpc_validate_header_value(ngx_http_request_t *r, | |
| 166 ngx_str_t *s); | |
| 167 static ngx_int_t ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, | |
| 168 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 169 static ngx_int_t ngx_http_grpc_parse_goaway(ngx_http_request_t *r, | |
| 170 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 171 static ngx_int_t ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
| 172 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 173 static ngx_int_t ngx_http_grpc_parse_settings(ngx_http_request_t *r, | |
| 174 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 175 static ngx_int_t ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
| 176 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 177 | |
| 178 static ngx_int_t ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, | |
| 179 ngx_http_grpc_ctx_t *ctx); | |
| 180 static ngx_int_t ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, | |
| 181 ngx_http_grpc_ctx_t *ctx); | |
| 182 static ngx_int_t ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
| 183 ngx_http_grpc_ctx_t *ctx); | |
| 184 | |
| 185 static ngx_chain_t *ngx_http_grpc_get_buf(ngx_http_request_t *r, | |
| 186 ngx_http_grpc_ctx_t *ctx); | |
| 187 static ngx_http_grpc_ctx_t *ngx_http_grpc_get_ctx(ngx_http_request_t *r); | |
| 188 static ngx_int_t ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
| 189 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc); | |
| 190 static void ngx_http_grpc_cleanup(void *data); | |
| 191 | |
| 192 static void ngx_http_grpc_abort_request(ngx_http_request_t *r); | |
| 193 static void ngx_http_grpc_finalize_request(ngx_http_request_t *r, | |
| 194 ngx_int_t rc); | |
| 195 | |
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196 static ngx_int_t ngx_http_grpc_internal_trailers_variable( |
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197 ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); |
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198 |
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199 static ngx_int_t ngx_http_grpc_add_variables(ngx_conf_t *cf); |
| 7233 | 200 static void *ngx_http_grpc_create_loc_conf(ngx_conf_t *cf); |
| 201 static char *ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, | |
| 202 void *parent, void *child); | |
| 203 static ngx_int_t ngx_http_grpc_init_headers(ngx_conf_t *cf, | |
| 204 ngx_http_grpc_loc_conf_t *conf, ngx_http_grpc_headers_t *headers, | |
| 205 ngx_keyval_t *default_headers); | |
| 206 | |
| 207 static char *ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 208 void *conf); | |
| 209 | |
| 210 #if (NGX_HTTP_SSL) | |
| 211 static char *ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, | |
| 212 ngx_command_t *cmd, void *conf); | |
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213 static char *ngx_http_grpc_ssl_conf_command_check(ngx_conf_t *cf, void *post, |
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214 void *data); |
| 7233 | 215 static ngx_int_t ngx_http_grpc_set_ssl(ngx_conf_t *cf, |
| 216 ngx_http_grpc_loc_conf_t *glcf); | |
| 217 #endif | |
| 218 | |
| 219 | |
| 220 static ngx_conf_bitmask_t ngx_http_grpc_next_upstream_masks[] = { | |
| 221 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, | |
| 222 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, | |
| 223 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, | |
| 224 { ngx_string("non_idempotent"), NGX_HTTP_UPSTREAM_FT_NON_IDEMPOTENT }, | |
| 225 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 }, | |
| 226 { ngx_string("http_502"), NGX_HTTP_UPSTREAM_FT_HTTP_502 }, | |
| 227 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 }, | |
| 228 { ngx_string("http_504"), NGX_HTTP_UPSTREAM_FT_HTTP_504 }, | |
| 229 { ngx_string("http_403"), NGX_HTTP_UPSTREAM_FT_HTTP_403 }, | |
| 230 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, | |
| 231 { ngx_string("http_429"), NGX_HTTP_UPSTREAM_FT_HTTP_429 }, | |
| 232 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, | |
| 233 { ngx_null_string, 0 } | |
| 234 }; | |
| 235 | |
| 236 | |
| 237 #if (NGX_HTTP_SSL) | |
| 238 | |
| 239 static ngx_conf_bitmask_t ngx_http_grpc_ssl_protocols[] = { | |
| 240 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
| 241 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
| 242 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
| 243 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, | |
| 244 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, | |
| 245 { ngx_string("TLSv1.3"), NGX_SSL_TLSv1_3 }, | |
| 246 { ngx_null_string, 0 } | |
| 247 }; | |
| 248 | |
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249 static ngx_conf_post_t ngx_http_grpc_ssl_conf_command_post = |
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250 { ngx_http_grpc_ssl_conf_command_check }; |
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251 |
| 7233 | 252 #endif |
| 253 | |
| 254 | |
| 255 static ngx_command_t ngx_http_grpc_commands[] = { | |
| 256 | |
| 257 { ngx_string("grpc_pass"), | |
| 258 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
| 259 ngx_http_grpc_pass, | |
| 260 NGX_HTTP_LOC_CONF_OFFSET, | |
| 261 0, | |
| 262 NULL }, | |
| 263 | |
| 264 { ngx_string("grpc_bind"), | |
| 265 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, | |
| 266 ngx_http_upstream_bind_set_slot, | |
| 267 NGX_HTTP_LOC_CONF_OFFSET, | |
| 268 offsetof(ngx_http_grpc_loc_conf_t, upstream.local), | |
| 269 NULL }, | |
| 270 | |
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271 { ngx_string("grpc_socket_keepalive"), |
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272 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
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273 ngx_conf_set_flag_slot, |
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274 NGX_HTTP_LOC_CONF_OFFSET, |
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275 offsetof(ngx_http_grpc_loc_conf_t, upstream.socket_keepalive), |
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276 NULL }, |
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277 |
| 7233 | 278 { ngx_string("grpc_connect_timeout"), |
| 279 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 280 ngx_conf_set_msec_slot, | |
| 281 NGX_HTTP_LOC_CONF_OFFSET, | |
| 282 offsetof(ngx_http_grpc_loc_conf_t, upstream.connect_timeout), | |
| 283 NULL }, | |
| 284 | |
| 285 { ngx_string("grpc_send_timeout"), | |
| 286 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 287 ngx_conf_set_msec_slot, | |
| 288 NGX_HTTP_LOC_CONF_OFFSET, | |
| 289 offsetof(ngx_http_grpc_loc_conf_t, upstream.send_timeout), | |
| 290 NULL }, | |
| 291 | |
| 292 { ngx_string("grpc_intercept_errors"), | |
| 293 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 294 ngx_conf_set_flag_slot, | |
| 295 NGX_HTTP_LOC_CONF_OFFSET, | |
| 296 offsetof(ngx_http_grpc_loc_conf_t, upstream.intercept_errors), | |
| 297 NULL }, | |
| 298 | |
| 299 { ngx_string("grpc_buffer_size"), | |
| 300 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 301 ngx_conf_set_size_slot, | |
| 302 NGX_HTTP_LOC_CONF_OFFSET, | |
| 303 offsetof(ngx_http_grpc_loc_conf_t, upstream.buffer_size), | |
| 304 NULL }, | |
| 305 | |
| 306 { ngx_string("grpc_read_timeout"), | |
| 307 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 308 ngx_conf_set_msec_slot, | |
| 309 NGX_HTTP_LOC_CONF_OFFSET, | |
| 310 offsetof(ngx_http_grpc_loc_conf_t, upstream.read_timeout), | |
| 311 NULL }, | |
| 312 | |
| 313 { ngx_string("grpc_next_upstream"), | |
| 314 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 315 ngx_conf_set_bitmask_slot, | |
| 316 NGX_HTTP_LOC_CONF_OFFSET, | |
| 317 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream), | |
| 318 &ngx_http_grpc_next_upstream_masks }, | |
| 319 | |
| 320 { ngx_string("grpc_next_upstream_tries"), | |
| 321 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 322 ngx_conf_set_num_slot, | |
| 323 NGX_HTTP_LOC_CONF_OFFSET, | |
| 324 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_tries), | |
| 325 NULL }, | |
| 326 | |
| 327 { ngx_string("grpc_next_upstream_timeout"), | |
| 328 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 329 ngx_conf_set_msec_slot, | |
| 330 NGX_HTTP_LOC_CONF_OFFSET, | |
| 331 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_timeout), | |
| 332 NULL }, | |
| 333 | |
| 334 { ngx_string("grpc_set_header"), | |
| 335 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
| 336 ngx_conf_set_keyval_slot, | |
| 337 NGX_HTTP_LOC_CONF_OFFSET, | |
| 338 offsetof(ngx_http_grpc_loc_conf_t, headers_source), | |
| 339 NULL }, | |
| 340 | |
| 341 { ngx_string("grpc_pass_header"), | |
| 342 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 343 ngx_conf_set_str_array_slot, | |
| 344 NGX_HTTP_LOC_CONF_OFFSET, | |
| 345 offsetof(ngx_http_grpc_loc_conf_t, upstream.pass_headers), | |
| 346 NULL }, | |
| 347 | |
| 348 { ngx_string("grpc_hide_header"), | |
| 349 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 350 ngx_conf_set_str_array_slot, | |
| 351 NGX_HTTP_LOC_CONF_OFFSET, | |
| 352 offsetof(ngx_http_grpc_loc_conf_t, upstream.hide_headers), | |
| 353 NULL }, | |
| 354 | |
| 355 { ngx_string("grpc_ignore_headers"), | |
| 356 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 357 ngx_conf_set_bitmask_slot, | |
| 358 NGX_HTTP_LOC_CONF_OFFSET, | |
| 359 offsetof(ngx_http_grpc_loc_conf_t, upstream.ignore_headers), | |
| 360 &ngx_http_upstream_ignore_headers_masks }, | |
| 361 | |
| 362 #if (NGX_HTTP_SSL) | |
| 363 | |
| 364 { ngx_string("grpc_ssl_session_reuse"), | |
| 365 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 366 ngx_conf_set_flag_slot, | |
| 367 NGX_HTTP_LOC_CONF_OFFSET, | |
| 368 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_session_reuse), | |
| 369 NULL }, | |
| 370 | |
| 371 { ngx_string("grpc_ssl_protocols"), | |
| 372 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 373 ngx_conf_set_bitmask_slot, | |
| 374 NGX_HTTP_LOC_CONF_OFFSET, | |
| 375 offsetof(ngx_http_grpc_loc_conf_t, ssl_protocols), | |
| 376 &ngx_http_grpc_ssl_protocols }, | |
| 377 | |
| 378 { ngx_string("grpc_ssl_ciphers"), | |
| 379 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 380 ngx_conf_set_str_slot, | |
| 381 NGX_HTTP_LOC_CONF_OFFSET, | |
| 382 offsetof(ngx_http_grpc_loc_conf_t, ssl_ciphers), | |
| 383 NULL }, | |
| 384 | |
| 385 { ngx_string("grpc_ssl_name"), | |
| 386 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 387 ngx_http_set_complex_value_slot, | |
| 388 NGX_HTTP_LOC_CONF_OFFSET, | |
| 389 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_name), | |
| 390 NULL }, | |
| 391 | |
| 392 { ngx_string("grpc_ssl_server_name"), | |
| 393 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 394 ngx_conf_set_flag_slot, | |
| 395 NGX_HTTP_LOC_CONF_OFFSET, | |
| 396 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_server_name), | |
| 397 NULL }, | |
| 398 | |
| 399 { ngx_string("grpc_ssl_verify"), | |
| 400 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 401 ngx_conf_set_flag_slot, | |
| 402 NGX_HTTP_LOC_CONF_OFFSET, | |
| 403 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_verify), | |
| 404 NULL }, | |
| 405 | |
| 406 { ngx_string("grpc_ssl_verify_depth"), | |
| 407 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 408 ngx_conf_set_num_slot, | |
| 409 NGX_HTTP_LOC_CONF_OFFSET, | |
| 410 offsetof(ngx_http_grpc_loc_conf_t, ssl_verify_depth), | |
| 411 NULL }, | |
| 412 | |
| 413 { ngx_string("grpc_ssl_trusted_certificate"), | |
| 414 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 415 ngx_conf_set_str_slot, | |
| 416 NGX_HTTP_LOC_CONF_OFFSET, | |
| 417 offsetof(ngx_http_grpc_loc_conf_t, ssl_trusted_certificate), | |
| 418 NULL }, | |
| 419 | |
| 420 { ngx_string("grpc_ssl_crl"), | |
| 421 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 422 ngx_conf_set_str_slot, | |
| 423 NGX_HTTP_LOC_CONF_OFFSET, | |
| 424 offsetof(ngx_http_grpc_loc_conf_t, ssl_crl), | |
| 425 NULL }, | |
| 426 | |
| 427 { ngx_string("grpc_ssl_certificate"), | |
| 428 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 429 ngx_conf_set_str_slot, | |
| 430 NGX_HTTP_LOC_CONF_OFFSET, | |
| 431 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate), | |
| 432 NULL }, | |
| 433 | |
| 434 { ngx_string("grpc_ssl_certificate_key"), | |
| 435 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 436 ngx_conf_set_str_slot, | |
| 437 NGX_HTTP_LOC_CONF_OFFSET, | |
| 438 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate_key), | |
| 439 NULL }, | |
| 440 | |
| 441 { ngx_string("grpc_ssl_password_file"), | |
| 442 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 443 ngx_http_grpc_ssl_password_file, | |
| 444 NGX_HTTP_LOC_CONF_OFFSET, | |
| 445 0, | |
| 446 NULL }, | |
| 447 | |
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448 { ngx_string("grpc_ssl_conf_command"), |
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449 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, |
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450 ngx_conf_set_keyval_slot, |
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451 NGX_HTTP_LOC_CONF_OFFSET, |
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452 offsetof(ngx_http_grpc_loc_conf_t, ssl_conf_commands), |
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453 &ngx_http_grpc_ssl_conf_command_post }, |
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454 |
| 7233 | 455 #endif |
| 456 | |
| 457 ngx_null_command | |
| 458 }; | |
| 459 | |
| 460 | |
| 461 static ngx_http_module_t ngx_http_grpc_module_ctx = { | |
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462 ngx_http_grpc_add_variables, /* preconfiguration */ |
| 7233 | 463 NULL, /* postconfiguration */ |
| 464 | |
| 465 NULL, /* create main configuration */ | |
| 466 NULL, /* init main configuration */ | |
| 467 | |
| 468 NULL, /* create server configuration */ | |
| 469 NULL, /* merge server configuration */ | |
| 470 | |
| 471 ngx_http_grpc_create_loc_conf, /* create location configuration */ | |
| 472 ngx_http_grpc_merge_loc_conf /* merge location configuration */ | |
| 473 }; | |
| 474 | |
| 475 | |
| 476 ngx_module_t ngx_http_grpc_module = { | |
| 477 NGX_MODULE_V1, | |
| 478 &ngx_http_grpc_module_ctx, /* module context */ | |
| 479 ngx_http_grpc_commands, /* module directives */ | |
| 480 NGX_HTTP_MODULE, /* module type */ | |
| 481 NULL, /* init master */ | |
| 482 NULL, /* init module */ | |
| 483 NULL, /* init process */ | |
| 484 NULL, /* init thread */ | |
| 485 NULL, /* exit thread */ | |
| 486 NULL, /* exit process */ | |
| 487 NULL, /* exit master */ | |
| 488 NGX_MODULE_V1_PADDING | |
| 489 }; | |
| 490 | |
| 491 | |
| 492 static u_char ngx_http_grpc_connection_start[] = | |
| 493 "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" /* connection preface */ | |
| 494 | |
| 495 "\x00\x00\x12\x04\x00\x00\x00\x00\x00" /* settings frame */ | |
| 496 "\x00\x01\x00\x00\x00\x00" /* header table size */ | |
| 497 "\x00\x02\x00\x00\x00\x00" /* disable push */ | |
| 498 "\x00\x04\x7f\xff\xff\xff" /* initial window */ | |
| 499 | |
| 500 "\x00\x00\x04\x08\x00\x00\x00\x00\x00" /* window update frame */ | |
| 501 "\x7f\xff\x00\x00"; | |
| 502 | |
| 503 | |
| 504 static ngx_keyval_t ngx_http_grpc_headers[] = { | |
| 505 { ngx_string("Content-Length"), ngx_string("$content_length") }, | |
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506 { ngx_string("TE"), ngx_string("$grpc_internal_trailers") }, |
| 7233 | 507 { ngx_string("Host"), ngx_string("") }, |
| 508 { ngx_string("Connection"), ngx_string("") }, | |
| 509 { ngx_string("Transfer-Encoding"), ngx_string("") }, | |
| 510 { ngx_string("Keep-Alive"), ngx_string("") }, | |
| 511 { ngx_string("Expect"), ngx_string("") }, | |
| 512 { ngx_string("Upgrade"), ngx_string("") }, | |
| 513 { ngx_null_string, ngx_null_string } | |
| 514 }; | |
| 515 | |
| 516 | |
| 517 static ngx_str_t ngx_http_grpc_hide_headers[] = { | |
| 518 ngx_string("Date"), | |
| 519 ngx_string("Server"), | |
| 520 ngx_string("X-Accel-Expires"), | |
| 521 ngx_string("X-Accel-Redirect"), | |
| 522 ngx_string("X-Accel-Limit-Rate"), | |
| 523 ngx_string("X-Accel-Buffering"), | |
| 524 ngx_string("X-Accel-Charset"), | |
| 525 ngx_null_string | |
| 526 }; | |
| 527 | |
| 528 | |
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529 static ngx_http_variable_t ngx_http_grpc_vars[] = { |
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530 |
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531 { ngx_string("grpc_internal_trailers"), NULL, |
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532 ngx_http_grpc_internal_trailers_variable, 0, |
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533 NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, |
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534 |
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535 ngx_http_null_variable |
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536 }; |
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537 |
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538 |
| 7233 | 539 static ngx_int_t |
| 540 ngx_http_grpc_handler(ngx_http_request_t *r) | |
| 541 { | |
| 542 ngx_int_t rc; | |
| 543 ngx_http_upstream_t *u; | |
| 544 ngx_http_grpc_ctx_t *ctx; | |
| 545 ngx_http_grpc_loc_conf_t *glcf; | |
| 546 | |
| 547 if (ngx_http_upstream_create(r) != NGX_OK) { | |
| 548 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 549 } | |
| 550 | |
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551 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_grpc_ctx_t)); |
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552 if (ctx == NULL) { |
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553 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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554 } |
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555 |
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556 ctx->request = r; |
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557 |
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558 ngx_http_set_ctx(r, ctx, ngx_http_grpc_module); |
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559 |
| 7233 | 560 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); |
| 561 | |
| 562 u = r->upstream; | |
| 563 | |
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564 if (glcf->grpc_lengths == NULL) { |
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565 ctx->host = glcf->host; |
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566 |
| 7233 | 567 #if (NGX_HTTP_SSL) |
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568 u->ssl = (glcf->upstream.ssl != NULL); |
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569 |
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570 if (u->ssl) { |
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571 ngx_str_set(&u->schema, "grpcs://"); |
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572 |
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573 } else { |
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574 ngx_str_set(&u->schema, "grpc://"); |
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575 } |
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576 #else |
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577 ngx_str_set(&u->schema, "grpc://"); |
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578 #endif |
| 7233 | 579 |
| 580 } else { | |
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581 if (ngx_http_grpc_eval(r, ctx, glcf) != NGX_OK) { |
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582 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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583 } |
| 7233 | 584 } |
| 585 | |
| 586 u->output.tag = (ngx_buf_tag_t) &ngx_http_grpc_module; | |
| 587 | |
| 588 u->conf = &glcf->upstream; | |
| 589 | |
| 590 u->create_request = ngx_http_grpc_create_request; | |
| 591 u->reinit_request = ngx_http_grpc_reinit_request; | |
| 592 u->process_header = ngx_http_grpc_process_header; | |
| 593 u->abort_request = ngx_http_grpc_abort_request; | |
| 594 u->finalize_request = ngx_http_grpc_finalize_request; | |
| 595 | |
| 596 u->input_filter_init = ngx_http_grpc_filter_init; | |
| 597 u->input_filter = ngx_http_grpc_filter; | |
| 598 u->input_filter_ctx = ctx; | |
| 599 | |
| 600 r->request_body_no_buffering = 1; | |
| 601 | |
| 602 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init); | |
| 603 | |
| 604 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { | |
| 605 return rc; | |
| 606 } | |
| 607 | |
| 608 return NGX_DONE; | |
| 609 } | |
| 610 | |
| 611 | |
| 612 static ngx_int_t | |
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613 ngx_http_grpc_eval(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, |
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614 ngx_http_grpc_loc_conf_t *glcf) |
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615 { |
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616 size_t add; |
|
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617 ngx_url_t url; |
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618 ngx_http_upstream_t *u; |
|
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619 |
|
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620 ngx_memzero(&url, sizeof(ngx_url_t)); |
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621 |
|
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622 if (ngx_http_script_run(r, &url.url, glcf->grpc_lengths->elts, 0, |
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623 glcf->grpc_values->elts) |
|
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624 == NULL) |
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625 { |
|
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626 return NGX_ERROR; |
|
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627 } |
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628 |
|
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629 if (url.url.len > 7 |
|
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630 && ngx_strncasecmp(url.url.data, (u_char *) "grpc://", 7) == 0) |
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631 { |
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632 add = 7; |
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633 |
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634 } else if (url.url.len > 8 |
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635 && ngx_strncasecmp(url.url.data, (u_char *) "grpcs://", 8) == 0) |
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636 { |
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637 |
|
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638 #if (NGX_HTTP_SSL) |
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639 add = 8; |
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640 r->upstream->ssl = 1; |
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641 #else |
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642 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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643 "grpcs protocol requires SSL support"); |
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644 return NGX_ERROR; |
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645 #endif |
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646 |
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647 } else { |
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648 add = 0; |
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649 } |
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650 |
|
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651 u = r->upstream; |
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652 |
|
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653 if (add) { |
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654 u->schema.len = add; |
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655 u->schema.data = url.url.data; |
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656 |
|
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657 url.url.data += add; |
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658 url.url.len -= add; |
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659 |
|
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660 } else { |
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661 ngx_str_set(&u->schema, "grpc://"); |
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662 } |
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663 |
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664 url.no_resolve = 1; |
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665 |
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666 if (ngx_parse_url(r->pool, &url) != NGX_OK) { |
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667 if (url.err) { |
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668 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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669 "%s in upstream \"%V\"", url.err, &url.url); |
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670 } |
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671 |
|
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672 return NGX_ERROR; |
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673 } |
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674 |
|
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675 u->resolved = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_resolved_t)); |
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676 if (u->resolved == NULL) { |
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677 return NGX_ERROR; |
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678 } |
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679 |
|
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680 if (url.addrs) { |
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681 u->resolved->sockaddr = url.addrs[0].sockaddr; |
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682 u->resolved->socklen = url.addrs[0].socklen; |
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683 u->resolved->name = url.addrs[0].name; |
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684 u->resolved->naddrs = 1; |
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685 } |
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|
686 |
|
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687 u->resolved->host = url.host; |
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688 u->resolved->port = url.port; |
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689 u->resolved->no_port = url.no_port; |
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|
690 |
|
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691 if (url.family != AF_UNIX) { |
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|
692 |
|
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693 if (url.no_port) { |
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694 ctx->host = url.host; |
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|
695 |
|
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696 } else { |
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697 ctx->host.len = url.host.len + 1 + url.port_text.len; |
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698 ctx->host.data = url.host.data; |
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699 } |
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|
700 |
|
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701 } else { |
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702 ngx_str_set(&ctx->host, "localhost"); |
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703 } |
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|
704 |
|
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705 return NGX_OK; |
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706 } |
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|
707 |
|
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|
708 |
|
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|
709 static ngx_int_t |
| 7233 | 710 ngx_http_grpc_create_request(ngx_http_request_t *r) |
| 711 { | |
| 712 u_char *p, *tmp, *key_tmp, *val_tmp, *headers_frame; | |
| 713 size_t len, tmp_len, key_len, val_len, uri_len; | |
| 714 uintptr_t escape; | |
| 715 ngx_buf_t *b; | |
| 716 ngx_uint_t i, next; | |
| 717 ngx_chain_t *cl, *body; | |
| 718 ngx_list_part_t *part; | |
| 719 ngx_table_elt_t *header; | |
|
7619
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720 ngx_http_grpc_ctx_t *ctx; |
| 7233 | 721 ngx_http_upstream_t *u; |
| 722 ngx_http_grpc_frame_t *f; | |
| 723 ngx_http_script_code_pt code; | |
| 724 ngx_http_grpc_loc_conf_t *glcf; | |
| 725 ngx_http_script_engine_t e, le; | |
| 726 ngx_http_script_len_code_pt lcode; | |
| 727 | |
| 728 u = r->upstream; | |
| 729 | |
| 730 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); | |
| 731 | |
|
7619
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732 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); |
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733 |
| 7233 | 734 len = sizeof(ngx_http_grpc_connection_start) - 1 |
| 735 + sizeof(ngx_http_grpc_frame_t); /* headers frame */ | |
| 736 | |
| 737 /* :method header */ | |
| 738 | |
| 739 if (r->method == NGX_HTTP_GET || r->method == NGX_HTTP_POST) { | |
| 740 len += 1; | |
| 741 tmp_len = 0; | |
| 742 | |
| 743 } else { | |
| 744 len += 1 + NGX_HTTP_V2_INT_OCTETS + r->method_name.len; | |
| 745 tmp_len = r->method_name.len; | |
| 746 } | |
| 747 | |
| 748 /* :scheme header */ | |
| 749 | |
| 750 len += 1; | |
| 751 | |
| 752 /* :path header */ | |
| 753 | |
| 754 if (r->valid_unparsed_uri) { | |
| 755 escape = 0; | |
| 756 uri_len = r->unparsed_uri.len; | |
| 757 | |
| 758 } else { | |
| 759 escape = 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len, | |
| 760 NGX_ESCAPE_URI); | |
| 761 uri_len = r->uri.len + escape + sizeof("?") - 1 + r->args.len; | |
| 762 } | |
| 763 | |
| 764 len += 1 + NGX_HTTP_V2_INT_OCTETS + uri_len; | |
| 765 | |
| 766 if (tmp_len < uri_len) { | |
| 767 tmp_len = uri_len; | |
| 768 } | |
| 769 | |
| 770 /* :authority header */ | |
| 771 | |
| 772 if (!glcf->host_set) { | |
|
7619
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|
773 len += 1 + NGX_HTTP_V2_INT_OCTETS + ctx->host.len; |
|
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gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
774 |
|
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gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
775 if (tmp_len < ctx->host.len) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
776 tmp_len = ctx->host.len; |
| 7233 | 777 } |
| 778 } | |
| 779 | |
| 780 /* other headers */ | |
| 781 | |
| 782 ngx_http_script_flush_no_cacheable_variables(r, glcf->headers.flushes); | |
| 783 ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); | |
| 784 | |
| 785 le.ip = glcf->headers.lengths->elts; | |
| 786 le.request = r; | |
| 787 le.flushed = 1; | |
| 788 | |
| 789 while (*(uintptr_t *) le.ip) { | |
| 790 | |
| 791 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 792 key_len = lcode(&le); | |
| 793 | |
| 794 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
| 795 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 796 } | |
| 797 le.ip += sizeof(uintptr_t); | |
| 798 | |
| 799 if (val_len == 0) { | |
| 800 continue; | |
| 801 } | |
| 802 | |
| 803 len += 1 + NGX_HTTP_V2_INT_OCTETS + key_len | |
| 804 + NGX_HTTP_V2_INT_OCTETS + val_len; | |
| 805 | |
| 806 if (tmp_len < key_len) { | |
| 807 tmp_len = key_len; | |
| 808 } | |
| 809 | |
| 810 if (tmp_len < val_len) { | |
| 811 tmp_len = val_len; | |
| 812 } | |
| 813 } | |
| 814 | |
| 815 if (glcf->upstream.pass_request_headers) { | |
| 816 part = &r->headers_in.headers.part; | |
| 817 header = part->elts; | |
| 818 | |
| 819 for (i = 0; /* void */; i++) { | |
| 820 | |
| 821 if (i >= part->nelts) { | |
| 822 if (part->next == NULL) { | |
| 823 break; | |
| 824 } | |
| 825 | |
| 826 part = part->next; | |
| 827 header = part->elts; | |
| 828 i = 0; | |
| 829 } | |
| 830 | |
| 831 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
| 832 header[i].lowcase_key, header[i].key.len)) | |
| 833 { | |
| 834 continue; | |
| 835 } | |
| 836 | |
| 837 len += 1 + NGX_HTTP_V2_INT_OCTETS + header[i].key.len | |
| 838 + NGX_HTTP_V2_INT_OCTETS + header[i].value.len; | |
| 839 | |
| 840 if (tmp_len < header[i].key.len) { | |
| 841 tmp_len = header[i].key.len; | |
| 842 } | |
| 843 | |
| 844 if (tmp_len < header[i].value.len) { | |
| 845 tmp_len = header[i].value.len; | |
| 846 } | |
| 847 } | |
| 848 } | |
| 849 | |
| 850 /* continuation frames */ | |
| 851 | |
| 852 len += sizeof(ngx_http_grpc_frame_t) | |
| 853 * (len / NGX_HTTP_V2_DEFAULT_FRAME_SIZE); | |
| 854 | |
| 855 | |
| 856 b = ngx_create_temp_buf(r->pool, len); | |
| 857 if (b == NULL) { | |
| 858 return NGX_ERROR; | |
| 859 } | |
| 860 | |
| 861 cl = ngx_alloc_chain_link(r->pool); | |
| 862 if (cl == NULL) { | |
| 863 return NGX_ERROR; | |
| 864 } | |
| 865 | |
| 866 cl->buf = b; | |
| 867 cl->next = NULL; | |
| 868 | |
| 869 tmp = ngx_palloc(r->pool, tmp_len * 3); | |
| 870 if (tmp == NULL) { | |
| 871 return NGX_ERROR; | |
| 872 } | |
| 873 | |
| 874 key_tmp = tmp + tmp_len; | |
| 875 val_tmp = tmp + 2 * tmp_len; | |
| 876 | |
| 877 /* connection preface */ | |
| 878 | |
| 879 b->last = ngx_copy(b->last, ngx_http_grpc_connection_start, | |
| 880 sizeof(ngx_http_grpc_connection_start) - 1); | |
| 881 | |
| 882 /* headers frame */ | |
| 883 | |
| 884 headers_frame = b->last; | |
| 885 | |
| 886 f = (ngx_http_grpc_frame_t *) b->last; | |
| 887 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 888 | |
| 889 f->length_0 = 0; | |
| 890 f->length_1 = 0; | |
| 891 f->length_2 = 0; | |
| 892 f->type = NGX_HTTP_V2_HEADERS_FRAME; | |
| 893 f->flags = 0; | |
| 894 f->stream_id_0 = 0; | |
| 895 f->stream_id_1 = 0; | |
| 896 f->stream_id_2 = 0; | |
| 897 f->stream_id_3 = 1; | |
| 898 | |
| 899 if (r->method == NGX_HTTP_GET) { | |
| 900 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_GET_INDEX); | |
| 901 | |
| 902 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 903 "grpc header: \":method: GET\""); | |
| 904 | |
| 905 } else if (r->method == NGX_HTTP_POST) { | |
| 906 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_POST_INDEX); | |
| 907 | |
| 908 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 909 "grpc header: \":method: POST\""); | |
| 910 | |
| 911 } else { | |
| 912 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_METHOD_INDEX); | |
| 913 b->last = ngx_http_v2_write_value(b->last, r->method_name.data, | |
| 914 r->method_name.len, tmp); | |
| 915 | |
| 916 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 917 "grpc header: \":method: %V\"", &r->method_name); | |
| 918 } | |
| 919 | |
| 920 #if (NGX_HTTP_SSL) | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
921 if (u->ssl) { |
| 7233 | 922 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTPS_INDEX); |
| 923 | |
| 924 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 925 "grpc header: \":scheme: https\""); | |
| 926 } else | |
| 927 #endif | |
| 928 { | |
| 929 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTP_INDEX); | |
| 930 | |
| 931 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 932 "grpc header: \":scheme: http\""); | |
| 933 } | |
| 934 | |
| 935 if (r->valid_unparsed_uri) { | |
| 936 | |
| 937 if (r->unparsed_uri.len == 1 && r->unparsed_uri.data[0] == '/') { | |
| 938 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_PATH_ROOT_INDEX); | |
| 939 | |
| 940 } else { | |
| 941 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 942 b->last = ngx_http_v2_write_value(b->last, r->unparsed_uri.data, | |
| 943 r->unparsed_uri.len, tmp); | |
| 944 } | |
| 945 | |
| 946 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 947 "grpc header: \":path: %V\"", &r->unparsed_uri); | |
| 948 | |
| 949 } else if (escape || r->args.len > 0) { | |
| 950 p = val_tmp; | |
| 951 | |
| 952 if (escape) { | |
| 953 p = (u_char *) ngx_escape_uri(p, r->uri.data, r->uri.len, | |
| 954 NGX_ESCAPE_URI); | |
| 955 | |
| 956 } else { | |
| 957 p = ngx_copy(p, r->uri.data, r->uri.len); | |
| 958 } | |
| 959 | |
| 960 if (r->args.len > 0) { | |
| 961 *p++ = '?'; | |
| 962 p = ngx_copy(p, r->args.data, r->args.len); | |
| 963 } | |
| 964 | |
| 965 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 966 b->last = ngx_http_v2_write_value(b->last, val_tmp, p - val_tmp, tmp); | |
| 967 | |
| 968 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 969 "grpc header: \":path: %*s\"", p - val_tmp, val_tmp); | |
| 970 | |
| 971 } else { | |
| 972 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 973 b->last = ngx_http_v2_write_value(b->last, r->uri.data, | |
| 974 r->uri.len, tmp); | |
| 975 | |
| 976 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 977 "grpc header: \":path: %V\"", &r->uri); | |
| 978 } | |
| 979 | |
| 980 if (!glcf->host_set) { | |
| 981 *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
|
982 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
|
983 ctx->host.len, tmp); |
| 7233 | 984 |
| 985 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
|
986 "grpc header: \":authority: %V\"", &ctx->host); |
| 7233 | 987 } |
| 988 | |
| 989 ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); | |
| 990 | |
| 991 e.ip = glcf->headers.values->elts; | |
| 992 e.request = r; | |
| 993 e.flushed = 1; | |
| 994 | |
| 995 le.ip = glcf->headers.lengths->elts; | |
| 996 | |
| 997 while (*(uintptr_t *) le.ip) { | |
| 998 | |
| 999 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 1000 key_len = lcode(&le); | |
| 1001 | |
| 1002 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
| 1003 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 1004 } | |
| 1005 le.ip += sizeof(uintptr_t); | |
| 1006 | |
| 1007 if (val_len == 0) { | |
| 1008 e.skip = 1; | |
| 1009 | |
| 1010 while (*(uintptr_t *) e.ip) { | |
| 1011 code = *(ngx_http_script_code_pt *) e.ip; | |
| 1012 code((ngx_http_script_engine_t *) &e); | |
| 1013 } | |
| 1014 e.ip += sizeof(uintptr_t); | |
| 1015 | |
| 1016 e.skip = 0; | |
| 1017 | |
| 1018 continue; | |
| 1019 } | |
| 1020 | |
| 1021 *b->last++ = 0; | |
| 1022 | |
| 1023 e.pos = key_tmp; | |
| 1024 | |
| 1025 code = *(ngx_http_script_code_pt *) e.ip; | |
| 1026 code((ngx_http_script_engine_t *) &e); | |
| 1027 | |
| 1028 b->last = ngx_http_v2_write_name(b->last, key_tmp, key_len, tmp); | |
| 1029 | |
| 1030 e.pos = val_tmp; | |
| 1031 | |
| 1032 while (*(uintptr_t *) e.ip) { | |
| 1033 code = *(ngx_http_script_code_pt *) e.ip; | |
| 1034 code((ngx_http_script_engine_t *) &e); | |
| 1035 } | |
| 1036 e.ip += sizeof(uintptr_t); | |
| 1037 | |
| 1038 b->last = ngx_http_v2_write_value(b->last, val_tmp, val_len, tmp); | |
| 1039 | |
| 1040 #if (NGX_DEBUG) | |
| 1041 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1042 ngx_strlow(key_tmp, key_tmp, key_len); | |
| 1043 | |
| 1044 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1045 "grpc header: \"%*s: %*s\"", | |
| 1046 key_len, key_tmp, val_len, val_tmp); | |
| 1047 } | |
| 1048 #endif | |
| 1049 } | |
| 1050 | |
| 1051 if (glcf->upstream.pass_request_headers) { | |
| 1052 part = &r->headers_in.headers.part; | |
| 1053 header = part->elts; | |
| 1054 | |
| 1055 for (i = 0; /* void */; i++) { | |
| 1056 | |
| 1057 if (i >= part->nelts) { | |
| 1058 if (part->next == NULL) { | |
| 1059 break; | |
| 1060 } | |
| 1061 | |
| 1062 part = part->next; | |
| 1063 header = part->elts; | |
| 1064 i = 0; | |
| 1065 } | |
| 1066 | |
| 1067 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
| 1068 header[i].lowcase_key, header[i].key.len)) | |
| 1069 { | |
| 1070 continue; | |
| 1071 } | |
| 1072 | |
| 1073 *b->last++ = 0; | |
| 1074 | |
| 1075 b->last = ngx_http_v2_write_name(b->last, header[i].key.data, | |
| 1076 header[i].key.len, tmp); | |
| 1077 | |
| 1078 b->last = ngx_http_v2_write_value(b->last, header[i].value.data, | |
| 1079 header[i].value.len, tmp); | |
| 1080 | |
| 1081 #if (NGX_DEBUG) | |
| 1082 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1083 ngx_strlow(tmp, header[i].key.data, header[i].key.len); | |
| 1084 | |
| 1085 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1086 "grpc header: \"%*s: %V\"", | |
| 1087 header[i].key.len, tmp, &header[i].value); | |
| 1088 } | |
| 1089 #endif | |
| 1090 } | |
| 1091 } | |
| 1092 | |
| 1093 /* update headers frame length */ | |
| 1094 | |
| 1095 len = b->last - headers_frame - sizeof(ngx_http_grpc_frame_t); | |
| 1096 | |
| 1097 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 1098 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1099 next = 1; | |
| 1100 | |
| 1101 } else { | |
| 1102 next = 0; | |
| 1103 } | |
| 1104 | |
| 1105 f = (ngx_http_grpc_frame_t *) headers_frame; | |
| 1106 | |
| 1107 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1108 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1109 f->length_2 = (u_char) (len & 0xff); | |
| 1110 | |
| 1111 /* create additional continuation frames */ | |
| 1112 | |
| 1113 p = headers_frame; | |
| 1114 | |
| 1115 while (next) { | |
| 1116 p += sizeof(ngx_http_grpc_frame_t) + NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1117 len = b->last - p; | |
| 1118 | |
| 1119 ngx_memmove(p + sizeof(ngx_http_grpc_frame_t), p, len); | |
| 1120 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1121 | |
| 1122 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 1123 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1124 next = 1; | |
| 1125 | |
| 1126 } else { | |
| 1127 next = 0; | |
| 1128 } | |
| 1129 | |
| 1130 f = (ngx_http_grpc_frame_t *) p; | |
| 1131 | |
| 1132 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1133 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1134 f->length_2 = (u_char) (len & 0xff); | |
| 1135 f->type = NGX_HTTP_V2_CONTINUATION_FRAME; | |
| 1136 f->flags = 0; | |
| 1137 f->stream_id_0 = 0; | |
| 1138 f->stream_id_1 = 0; | |
| 1139 f->stream_id_2 = 0; | |
| 1140 f->stream_id_3 = 1; | |
| 1141 } | |
| 1142 | |
| 1143 f->flags |= NGX_HTTP_V2_END_HEADERS_FLAG; | |
| 1144 | |
|
8218
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
8183
diff
changeset
|
1145 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:
8183
diff
changeset
|
1146 "grpc header: %*xs%s, len: %uz", |
|
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
8183
diff
changeset
|
1147 (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:
8183
diff
changeset
|
1148 b->last - b->pos > 256 ? "..." : "", |
|
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
8183
diff
changeset
|
1149 b->last - b->pos); |
| 7233 | 1150 |
| 1151 if (r->request_body_no_buffering) { | |
| 1152 | |
| 1153 u->request_bufs = cl; | |
| 1154 | |
| 1155 } else { | |
| 1156 | |
| 1157 body = u->request_bufs; | |
| 1158 u->request_bufs = cl; | |
| 1159 | |
| 1160 if (body == NULL) { | |
| 1161 f = (ngx_http_grpc_frame_t *) headers_frame; | |
| 1162 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1163 } | |
| 1164 | |
| 1165 while (body) { | |
| 1166 b = ngx_alloc_buf(r->pool); | |
| 1167 if (b == NULL) { | |
| 1168 return NGX_ERROR; | |
| 1169 } | |
| 1170 | |
| 1171 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t)); | |
| 1172 | |
| 1173 cl->next = ngx_alloc_chain_link(r->pool); | |
| 1174 if (cl->next == NULL) { | |
| 1175 return NGX_ERROR; | |
| 1176 } | |
| 1177 | |
| 1178 cl = cl->next; | |
| 1179 cl->buf = b; | |
| 1180 | |
| 1181 body = body->next; | |
| 1182 } | |
| 1183 | |
| 1184 b->last_buf = 1; | |
| 1185 } | |
| 1186 | |
| 1187 u->output.output_filter = ngx_http_grpc_body_output_filter; | |
| 1188 u->output.filter_ctx = r; | |
| 1189 | |
| 1190 b->flush = 1; | |
| 1191 cl->next = NULL; | |
| 1192 | |
| 1193 return NGX_OK; | |
| 1194 } | |
| 1195 | |
| 1196 | |
| 1197 static ngx_int_t | |
| 1198 ngx_http_grpc_reinit_request(ngx_http_request_t *r) | |
| 1199 { | |
| 1200 ngx_http_grpc_ctx_t *ctx; | |
| 1201 | |
| 1202 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
| 1203 | |
| 1204 if (ctx == NULL) { | |
| 1205 return NGX_OK; | |
| 1206 } | |
| 1207 | |
| 1208 ctx->state = 0; | |
| 1209 ctx->header_sent = 0; | |
| 1210 ctx->output_closed = 0; | |
|
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1211 ctx->output_blocked = 0; |
| 7233 | 1212 ctx->parsing_headers = 0; |
| 1213 ctx->end_stream = 0; | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1214 ctx->done = 0; |
| 7233 | 1215 ctx->status = 0; |
|
7892
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
1216 ctx->rst = 0; |
|
8734
f5732fa038ad
gRPC: handling GOAWAY with a higher last stream identifier.
Sergey Kandaurov <pluknet@nginx.com>
parents:
8366
diff
changeset
|
1217 ctx->goaway = 0; |
| 7233 | 1218 ctx->connection = NULL; |
| 1219 | |
| 1220 return NGX_OK; | |
| 1221 } | |
| 1222 | |
| 1223 | |
| 1224 static ngx_int_t | |
| 1225 ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in) | |
| 1226 { | |
| 1227 ngx_http_request_t *r = data; | |
| 1228 | |
| 1229 off_t file_pos; | |
| 1230 u_char *p, *pos, *start; | |
| 1231 size_t len, limit; | |
| 1232 ngx_buf_t *b; | |
| 1233 ngx_int_t rc; | |
| 1234 ngx_uint_t next, last; | |
| 1235 ngx_chain_t *cl, *out, **ll; | |
|
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changeset
|
1236 ngx_http_upstream_t *u; |
| 7233 | 1237 ngx_http_grpc_ctx_t *ctx; |
| 1238 ngx_http_grpc_frame_t *f; | |
| 1239 | |
| 1240 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1241 "grpc output filter"); | |
| 1242 | |
| 1243 ctx = ngx_http_grpc_get_ctx(r); | |
| 1244 | |
| 1245 if (ctx == NULL) { | |
| 1246 return NGX_ERROR; | |
| 1247 } | |
| 1248 | |
| 1249 if (in) { | |
| 1250 if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) { | |
| 1251 return NGX_ERROR; | |
| 1252 } | |
| 1253 } | |
| 1254 | |
| 1255 out = NULL; | |
| 1256 ll = &out; | |
| 1257 | |
| 1258 if (!ctx->header_sent) { | |
| 1259 /* first buffer contains headers */ | |
| 1260 | |
| 1261 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1262 "grpc output header"); | |
| 1263 | |
| 1264 ctx->header_sent = 1; | |
| 1265 | |
| 1266 if (ctx->id != 1) { | |
| 1267 /* | |
| 1268 * keepalive connection: skip connection preface, | |
| 1269 * update stream identifiers | |
| 1270 */ | |
| 1271 | |
| 1272 b = ctx->in->buf; | |
| 1273 b->pos += sizeof(ngx_http_grpc_connection_start) - 1; | |
| 1274 | |
| 1275 p = b->pos; | |
| 1276 | |
| 1277 while (p < b->last) { | |
| 1278 f = (ngx_http_grpc_frame_t *) p; | |
| 1279 p += sizeof(ngx_http_grpc_frame_t); | |
| 1280 | |
| 1281 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1282 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1283 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1284 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1285 | |
| 1286 p += (f->length_0 << 16) + (f->length_1 << 8) + f->length_2; | |
| 1287 } | |
| 1288 } | |
| 1289 | |
| 1290 if (ctx->in->buf->last_buf) { | |
| 1291 ctx->output_closed = 1; | |
| 1292 } | |
| 1293 | |
| 1294 *ll = ctx->in; | |
| 1295 ll = &ctx->in->next; | |
| 1296 | |
| 1297 ctx->in = ctx->in->next; | |
| 1298 } | |
| 1299 | |
| 1300 if (ctx->out) { | |
| 1301 /* queued control frames */ | |
| 1302 | |
| 1303 *ll = ctx->out; | |
| 1304 | |
| 1305 for (cl = ctx->out, ll = &cl->next; cl; cl = cl->next) { | |
| 1306 ll = &cl->next; | |
| 1307 } | |
| 1308 | |
| 1309 ctx->out = NULL; | |
| 1310 } | |
| 1311 | |
| 1312 f = NULL; | |
| 1313 last = 0; | |
| 1314 | |
| 1315 limit = ngx_max(0, ctx->send_window); | |
| 1316 | |
| 1317 if (limit > ctx->connection->send_window) { | |
| 1318 limit = ctx->connection->send_window; | |
| 1319 } | |
| 1320 | |
| 1321 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1322 "grpc output limit: %uz w:%z:%uz", | |
| 1323 limit, ctx->send_window, ctx->connection->send_window); | |
| 1324 | |
| 1325 #if (NGX_SUPPRESS_WARN) | |
| 1326 file_pos = 0; | |
| 1327 pos = NULL; | |
| 1328 cl = NULL; | |
| 1329 #endif | |
| 1330 | |
| 1331 in = ctx->in; | |
| 1332 | |
| 1333 while (in && limit > 0) { | |
| 1334 | |
| 1335 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
| 1336 "grpc output in l:%d f:%d %p, pos %p, size: %z " | |
| 1337 "file: %O, size: %O", | |
| 1338 in->buf->last_buf, | |
| 1339 in->buf->in_file, | |
| 1340 in->buf->start, in->buf->pos, | |
| 1341 in->buf->last - in->buf->pos, | |
| 1342 in->buf->file_pos, | |
| 1343 in->buf->file_last - in->buf->file_pos); | |
| 1344 | |
| 1345 if (ngx_buf_special(in->buf)) { | |
| 1346 goto next; | |
| 1347 } | |
| 1348 | |
| 1349 if (in->buf->in_file) { | |
| 1350 file_pos = in->buf->file_pos; | |
| 1351 | |
| 1352 } else { | |
| 1353 pos = in->buf->pos; | |
| 1354 } | |
| 1355 | |
| 1356 next = 0; | |
| 1357 | |
| 1358 do { | |
| 1359 | |
| 1360 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 1361 if (cl == NULL) { | |
| 1362 return NGX_ERROR; | |
| 1363 } | |
| 1364 | |
| 1365 b = cl->buf; | |
| 1366 | |
| 1367 f = (ngx_http_grpc_frame_t *) b->last; | |
| 1368 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1369 | |
| 1370 *ll = cl; | |
| 1371 ll = &cl->next; | |
| 1372 | |
| 1373 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
| 1374 if (cl == NULL) { | |
| 1375 return NGX_ERROR; | |
| 1376 } | |
| 1377 | |
| 1378 b = cl->buf; | |
| 1379 start = b->start; | |
| 1380 | |
| 1381 ngx_memcpy(b, in->buf, sizeof(ngx_buf_t)); | |
| 1382 | |
| 1383 /* | |
| 1384 * restore b->start to preserve memory allocated in the buffer, | |
| 1385 * to reuse it later for headers and control frames | |
| 1386 */ | |
| 1387 | |
| 1388 b->start = start; | |
| 1389 | |
| 1390 if (in->buf->in_file) { | |
| 1391 b->file_pos = file_pos; | |
| 1392 file_pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
| 1393 | |
| 1394 if (file_pos >= in->buf->file_last) { | |
| 1395 file_pos = in->buf->file_last; | |
| 1396 next = 1; | |
| 1397 } | |
| 1398 | |
| 1399 b->file_last = file_pos; | |
| 1400 len = (ngx_uint_t) (file_pos - b->file_pos); | |
| 1401 | |
| 1402 } else { | |
| 1403 b->pos = pos; | |
| 1404 pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
| 1405 | |
| 1406 if (pos >= in->buf->last) { | |
| 1407 pos = in->buf->last; | |
| 1408 next = 1; | |
| 1409 } | |
| 1410 | |
| 1411 b->last = pos; | |
| 1412 len = (ngx_uint_t) (pos - b->pos); | |
| 1413 } | |
| 1414 | |
| 1415 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; | |
| 1416 b->shadow = in->buf; | |
| 1417 b->last_shadow = next; | |
| 1418 | |
| 1419 b->last_buf = 0; | |
| 1420 b->last_in_chain = 0; | |
| 1421 | |
| 1422 *ll = cl; | |
| 1423 ll = &cl->next; | |
| 1424 | |
| 1425 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1426 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1427 f->length_2 = (u_char) (len & 0xff); | |
| 1428 f->type = NGX_HTTP_V2_DATA_FRAME; | |
| 1429 f->flags = 0; | |
| 1430 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1431 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1432 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1433 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1434 | |
| 1435 limit -= len; | |
| 1436 ctx->send_window -= len; | |
| 1437 ctx->connection->send_window -= len; | |
| 1438 | |
| 1439 } while (!next && limit > 0); | |
| 1440 | |
| 1441 if (!next) { | |
| 1442 /* | |
| 1443 * if the buffer wasn't fully sent due to flow control limits, | |
| 1444 * preserve position for future use | |
| 1445 */ | |
| 1446 | |
| 1447 if (in->buf->in_file) { | |
| 1448 in->buf->file_pos = file_pos; | |
| 1449 | |
| 1450 } else { | |
| 1451 in->buf->pos = pos; | |
| 1452 } | |
| 1453 | |
| 1454 break; | |
| 1455 } | |
| 1456 | |
| 1457 next: | |
| 1458 | |
| 1459 if (in->buf->last_buf) { | |
| 1460 last = 1; | |
| 1461 } | |
| 1462 | |
| 1463 in = in->next; | |
| 1464 } | |
| 1465 | |
| 1466 ctx->in = in; | |
| 1467 | |
| 1468 if (last) { | |
| 1469 | |
| 1470 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1471 "grpc output last"); | |
| 1472 | |
| 1473 ctx->output_closed = 1; | |
| 1474 | |
| 1475 if (f) { | |
| 1476 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1477 | |
| 1478 } else { | |
| 1479 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 1480 if (cl == NULL) { | |
| 1481 return NGX_ERROR; | |
| 1482 } | |
| 1483 | |
| 1484 b = cl->buf; | |
| 1485 | |
| 1486 f = (ngx_http_grpc_frame_t *) b->last; | |
| 1487 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1488 | |
| 1489 f->length_0 = 0; | |
| 1490 f->length_1 = 0; | |
| 1491 f->length_2 = 0; | |
| 1492 f->type = NGX_HTTP_V2_DATA_FRAME; | |
| 1493 f->flags = NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1494 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1495 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1496 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1497 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1498 | |
| 1499 *ll = cl; | |
| 1500 ll = &cl->next; | |
| 1501 } | |
| 1502 | |
| 1503 cl->buf->last_buf = 1; | |
| 1504 } | |
| 1505 | |
| 1506 *ll = NULL; | |
| 1507 | |
| 1508 #if (NGX_DEBUG) | |
| 1509 | |
| 1510 for (cl = out; cl; cl = cl->next) { | |
| 1511 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
| 1512 "grpc output out l:%d f:%d %p, pos %p, size: %z " | |
| 1513 "file: %O, size: %O", | |
| 1514 cl->buf->last_buf, | |
| 1515 cl->buf->in_file, | |
| 1516 cl->buf->start, cl->buf->pos, | |
| 1517 cl->buf->last - cl->buf->pos, | |
| 1518 cl->buf->file_pos, | |
| 1519 cl->buf->file_last - cl->buf->file_pos); | |
| 1520 } | |
| 1521 | |
| 1522 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1523 "grpc output limit: %uz w:%z:%uz", | |
| 1524 limit, ctx->send_window, ctx->connection->send_window); | |
| 1525 | |
| 1526 #endif | |
| 1527 | |
| 1528 rc = ngx_chain_writer(&r->upstream->writer, out); | |
| 1529 | |
| 1530 ngx_chain_update_chains(r->pool, &ctx->free, &ctx->busy, &out, | |
| 1531 (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter); | |
| 1532 | |
| 1533 for (cl = ctx->free; cl; cl = cl->next) { | |
| 1534 | |
| 1535 /* mark original buffers as sent */ | |
| 1536 | |
| 1537 if (cl->buf->shadow) { | |
| 1538 if (cl->buf->last_shadow) { | |
| 1539 b = cl->buf->shadow; | |
| 1540 b->pos = b->last; | |
| 1541 } | |
| 1542 | |
| 1543 cl->buf->shadow = NULL; | |
| 1544 } | |
| 1545 } | |
| 1546 | |
| 1547 if (rc == NGX_OK && ctx->in) { | |
| 1548 rc = NGX_AGAIN; | |
| 1549 } | |
| 1550 | |
|
7350
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gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
1551 if (rc == NGX_AGAIN) { |
|
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parents:
7349
diff
changeset
|
1552 ctx->output_blocked = 1; |
|
67c6cb7f477c
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
1553 |
|
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parents:
7349
diff
changeset
|
1554 } else { |
|
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1555 ctx->output_blocked = 0; |
|
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
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parents:
7349
diff
changeset
|
1556 } |
|
67c6cb7f477c
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
1557 |
|
7349
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parents:
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diff
changeset
|
1558 if (ctx->done) { |
|
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parents:
7321
diff
changeset
|
1559 |
|
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gRPC: improved keepalive handling.
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parents:
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diff
changeset
|
1560 /* |
|
f6047a579ca1
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parents:
7321
diff
changeset
|
1561 * We have already got the response and were sending some additional |
|
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
changeset
|
1562 * control frames. Even if there is still something unsent, stop |
|
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gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1563 * here anyway. |
|
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gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
1564 */ |
|
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gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1565 |
|
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parents:
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diff
changeset
|
1566 u = r->upstream; |
|
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parents:
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diff
changeset
|
1567 u->length = 0; |
|
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parents:
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diff
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|
1568 |
|
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parents:
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diff
changeset
|
1569 if (ctx->in == NULL |
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parents:
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diff
changeset
|
1570 && ctx->out == NULL |
|
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parents:
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diff
changeset
|
1571 && ctx->output_closed |
|
7350
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1572 && !ctx->output_blocked |
|
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gRPC: handling GOAWAY with a higher last stream identifier.
Sergey Kandaurov <pluknet@nginx.com>
parents:
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|
1573 && !ctx->goaway |
|
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
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|
1574 && ctx->state == ngx_http_grpc_st_start) |
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parents:
7321
diff
changeset
|
1575 { |
|
f6047a579ca1
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parents:
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diff
changeset
|
1576 u->keepalive = 1; |
|
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parents:
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|
1577 } |
|
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parents:
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diff
changeset
|
1578 |
|
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parents:
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diff
changeset
|
1579 ngx_post_event(u->peer.connection->read, &ngx_posted_events); |
|
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gRPC: improved keepalive handling.
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parents:
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diff
changeset
|
1580 } |
|
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parents:
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diff
changeset
|
1581 |
| 7233 | 1582 return rc; |
| 1583 } | |
| 1584 | |
| 1585 | |
| 1586 static ngx_int_t | |
| 1587 ngx_http_grpc_process_header(ngx_http_request_t *r) | |
| 1588 { | |
| 1589 ngx_str_t *status_line; | |
| 1590 ngx_int_t rc, status; | |
| 1591 ngx_buf_t *b; | |
| 1592 ngx_table_elt_t *h; | |
| 1593 ngx_http_upstream_t *u; | |
| 1594 ngx_http_grpc_ctx_t *ctx; | |
| 1595 ngx_http_upstream_header_t *hh; | |
| 1596 ngx_http_upstream_main_conf_t *umcf; | |
| 1597 | |
| 1598 u = r->upstream; | |
| 1599 b = &u->buffer; | |
| 1600 | |
|
8218
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Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
1601 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
|
a46fcf101cfc
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Vladimir Homutov <vl@nginx.com>
parents:
8183
diff
changeset
|
1602 "grpc response: %*xs%s, len: %uz", |
|
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
8183
diff
changeset
|
1603 (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:
8183
diff
changeset
|
1604 b->pos, b->last - b->pos > 256 ? "..." : "", |
|
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
8183
diff
changeset
|
1605 b->last - b->pos); |
| 7233 | 1606 |
| 1607 ctx = ngx_http_grpc_get_ctx(r); | |
| 1608 | |
| 1609 if (ctx == NULL) { | |
| 1610 return NGX_ERROR; | |
| 1611 } | |
| 1612 | |
| 1613 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); | |
| 1614 | |
| 1615 for ( ;; ) { | |
| 1616 | |
| 1617 if (ctx->state < ngx_http_grpc_st_payload) { | |
| 1618 | |
| 1619 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
| 1620 | |
| 1621 if (rc == NGX_AGAIN) { | |
| 1622 | |
| 1623 /* | |
| 1624 * there can be a lot of window update frames, | |
| 1625 * so we reset buffer if it is empty and we haven't | |
| 1626 * started parsing headers yet | |
| 1627 */ | |
| 1628 | |
| 1629 if (!ctx->parsing_headers) { | |
| 1630 b->pos = b->start; | |
| 1631 b->last = b->pos; | |
| 1632 } | |
| 1633 | |
| 1634 return NGX_AGAIN; | |
| 1635 } | |
| 1636 | |
| 1637 if (rc == NGX_ERROR) { | |
| 1638 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1639 } | |
| 1640 | |
| 1641 /* | |
| 1642 * RFC 7540 says that implementations MUST discard frames | |
| 1643 * that have unknown or unsupported types. However, extension | |
| 1644 * frames that appear in the middle of a header block are | |
| 1645 * not permitted. Also, for obvious reasons CONTINUATION frames | |
| 1646 * cannot appear before headers, and DATA frames are not expected | |
| 1647 * to appear before all headers are parsed. | |
| 1648 */ | |
| 1649 | |
| 1650 if (ctx->type == NGX_HTTP_V2_DATA_FRAME | |
| 1651 || (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
| 1652 && !ctx->parsing_headers) | |
| 1653 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
| 1654 && ctx->parsing_headers)) | |
| 1655 { | |
| 1656 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1657 "upstream sent unexpected http2 frame: %d", | |
| 1658 ctx->type); | |
| 1659 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1660 } | |
| 1661 | |
| 1662 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
| 1663 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1664 "upstream sent frame for unknown stream %ui", | |
| 1665 ctx->stream_id); | |
| 1666 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1667 } | |
| 1668 } | |
| 1669 | |
| 1670 /* frame payload */ | |
| 1671 | |
| 1672 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
| 1673 | |
| 1674 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
| 1675 | |
| 1676 if (rc == NGX_AGAIN) { | |
| 1677 return NGX_AGAIN; | |
| 1678 } | |
| 1679 | |
| 1680 if (rc == NGX_ERROR) { | |
| 1681 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1682 } | |
| 1683 | |
| 1684 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1685 "upstream rejected request with error %ui", | |
| 1686 ctx->error); | |
| 1687 | |
| 1688 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1689 } | |
| 1690 | |
| 1691 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
| 1692 | |
| 1693 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
| 1694 | |
| 1695 if (rc == NGX_AGAIN) { | |
| 1696 return NGX_AGAIN; | |
| 1697 } | |
| 1698 | |
| 1699 if (rc == NGX_ERROR) { | |
| 1700 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1701 } | |
| 1702 | |
| 1703 /* | |
| 1704 * If stream_id is lower than one we use, our | |
| 1705 * request won't be processed and needs to be retried. | |
| 1706 * If stream_id is greater or equal to the one we use, | |
| 1707 * we can continue normally (except we can't use this | |
| 1708 * connection for additional requests). If there is | |
| 1709 * a real error, the connection will be closed. | |
| 1710 */ | |
| 1711 | |
| 1712 if (ctx->stream_id < ctx->id) { | |
| 1713 | |
| 1714 /* TODO: we can retry non-idempotent requests */ | |
| 1715 | |
| 1716 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1717 "upstream sent goaway with error %ui", | |
| 1718 ctx->error); | |
| 1719 | |
| 1720 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1721 } | |
| 1722 | |
|
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1723 ctx->goaway = 1; |
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1724 |
| 7233 | 1725 continue; |
| 1726 } | |
| 1727 | |
| 1728 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
| 1729 | |
| 1730 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
| 1731 | |
| 1732 if (rc == NGX_AGAIN) { | |
| 1733 return NGX_AGAIN; | |
| 1734 } | |
| 1735 | |
| 1736 if (rc == NGX_ERROR) { | |
| 1737 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1738 } | |
| 1739 | |
| 1740 if (ctx->in) { | |
| 1741 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1742 } | |
| 1743 | |
| 1744 continue; | |
| 1745 } | |
| 1746 | |
| 1747 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
| 1748 | |
| 1749 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
| 1750 | |
| 1751 if (rc == NGX_AGAIN) { | |
| 1752 return NGX_AGAIN; | |
| 1753 } | |
| 1754 | |
| 1755 if (rc == NGX_ERROR) { | |
| 1756 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1757 } | |
| 1758 | |
| 1759 if (ctx->in) { | |
| 1760 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1761 } | |
| 1762 | |
| 1763 continue; | |
| 1764 } | |
| 1765 | |
| 1766 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
| 1767 | |
| 1768 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
| 1769 | |
| 1770 if (rc == NGX_AGAIN) { | |
| 1771 return NGX_AGAIN; | |
| 1772 } | |
| 1773 | |
| 1774 if (rc == NGX_ERROR) { | |
| 1775 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1776 } | |
| 1777 | |
| 1778 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1779 continue; | |
| 1780 } | |
| 1781 | |
| 1782 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
| 1783 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1784 "upstream sent unexpected push promise frame"); | |
| 1785 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1786 } | |
| 1787 | |
| 1788 if (ctx->type != NGX_HTTP_V2_HEADERS_FRAME | |
| 1789 && ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME) | |
| 1790 { | |
| 1791 /* priority, unknown frames */ | |
| 1792 | |
| 1793 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 1794 ctx->rest -= b->last - b->pos; | |
| 1795 b->pos = b->last; | |
| 1796 return NGX_AGAIN; | |
| 1797 } | |
| 1798 | |
| 1799 b->pos += ctx->rest; | |
| 1800 ctx->rest = 0; | |
| 1801 ctx->state = ngx_http_grpc_st_start; | |
| 1802 | |
| 1803 continue; | |
| 1804 } | |
| 1805 | |
| 1806 /* headers */ | |
| 1807 | |
| 1808 for ( ;; ) { | |
| 1809 | |
| 1810 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
| 1811 | |
| 1812 if (rc == NGX_AGAIN) { | |
| 1813 break; | |
| 1814 } | |
| 1815 | |
| 1816 if (rc == NGX_OK) { | |
| 1817 | |
| 1818 /* a header line has been parsed successfully */ | |
| 1819 | |
| 1820 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1821 "grpc header: \"%V: %V\"", | |
| 1822 &ctx->name, &ctx->value); | |
| 1823 | |
| 1824 if (ctx->name.len && ctx->name.data[0] == ':') { | |
| 1825 | |
| 1826 if (ctx->name.len != sizeof(":status") - 1 | |
| 1827 || ngx_strncmp(ctx->name.data, ":status", | |
| 1828 sizeof(":status") - 1) | |
| 1829 != 0) | |
| 1830 { | |
| 1831 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1832 "upstream sent invalid header \"%V: %V\"", | |
| 1833 &ctx->name, &ctx->value); | |
| 1834 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1835 } | |
| 1836 | |
| 1837 if (ctx->status) { | |
| 1838 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1839 "upstream sent duplicate :status header"); | |
| 1840 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1841 } | |
| 1842 | |
| 1843 status_line = &ctx->value; | |
| 1844 | |
| 1845 if (status_line->len != 3) { | |
| 1846 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1847 "upstream sent invalid :status \"%V\"", | |
| 1848 status_line); | |
| 1849 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1850 } | |
| 1851 | |
| 1852 status = ngx_atoi(status_line->data, 3); | |
| 1853 | |
| 1854 if (status == NGX_ERROR) { | |
| 1855 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1856 "upstream sent invalid :status \"%V\"", | |
| 1857 status_line); | |
| 1858 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1859 } | |
| 1860 | |
| 1861 if (status < NGX_HTTP_OK) { | |
| 1862 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1863 "upstream sent unexpected :status \"%V\"", | |
| 1864 status_line); | |
| 1865 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1866 } | |
| 1867 | |
| 1868 u->headers_in.status_n = status; | |
| 1869 | |
| 1870 if (u->state && u->state->status == 0) { | |
| 1871 u->state->status = status; | |
| 1872 } | |
| 1873 | |
| 1874 ctx->status = 1; | |
| 1875 | |
| 1876 continue; | |
| 1877 | |
| 1878 } else if (!ctx->status) { | |
| 1879 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1880 "upstream sent no :status header"); | |
| 1881 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1882 } | |
| 1883 | |
| 1884 h = ngx_list_push(&u->headers_in.headers); | |
| 1885 if (h == NULL) { | |
| 1886 return NGX_ERROR; | |
| 1887 } | |
| 1888 | |
| 1889 h->key = ctx->name; | |
| 1890 h->value = ctx->value; | |
| 1891 h->lowcase_key = h->key.data; | |
| 1892 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
| 1893 | |
| 1894 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash, | |
| 1895 h->lowcase_key, h->key.len); | |
| 1896 | |
| 1897 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) { | |
| 1898 return NGX_ERROR; | |
| 1899 } | |
| 1900 | |
| 1901 continue; | |
| 1902 } | |
| 1903 | |
| 1904 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
| 1905 | |
| 1906 /* a whole header has been parsed successfully */ | |
| 1907 | |
| 1908 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1909 "grpc header done"); | |
| 1910 | |
|
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1911 if (ctx->end_stream) { |
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1912 u->headers_in.content_length_n = 0; |
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1913 |
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1914 if (ctx->in == NULL |
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1915 && ctx->out == NULL |
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1916 && ctx->output_closed |
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1917 && !ctx->output_blocked |
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1918 && !ctx->goaway |
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1919 && b->last == b->pos) |
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1920 { |
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1921 u->keepalive = 1; |
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1922 } |
| 7233 | 1923 } |
| 1924 | |
| 1925 return NGX_OK; | |
| 1926 } | |
| 1927 | |
| 1928 /* there was error while a header line parsing */ | |
| 1929 | |
| 1930 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1931 "upstream sent invalid header"); | |
| 1932 | |
| 1933 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1934 } | |
| 1935 | |
| 1936 /* rc == NGX_AGAIN */ | |
| 1937 | |
| 1938 if (ctx->rest == 0) { | |
| 1939 ctx->state = ngx_http_grpc_st_start; | |
| 1940 continue; | |
| 1941 } | |
| 1942 | |
| 1943 return NGX_AGAIN; | |
| 1944 } | |
| 1945 } | |
| 1946 | |
| 1947 | |
| 1948 static ngx_int_t | |
| 1949 ngx_http_grpc_filter_init(void *data) | |
| 1950 { | |
| 1951 ngx_http_grpc_ctx_t *ctx = data; | |
| 1952 | |
| 1953 ngx_http_request_t *r; | |
| 1954 ngx_http_upstream_t *u; | |
| 1955 | |
| 1956 r = ctx->request; | |
| 1957 u = r->upstream; | |
| 1958 | |
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1959 if (u->headers_in.status_n == NGX_HTTP_NO_CONTENT |
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1960 || u->headers_in.status_n == NGX_HTTP_NOT_MODIFIED |
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1961 || r->method == NGX_HTTP_HEAD) |
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1962 { |
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1963 ctx->length = 0; |
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1964 |
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1965 } else { |
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1966 ctx->length = u->headers_in.content_length_n; |
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1967 } |
| 7233 | 1968 |
| 1969 if (ctx->end_stream) { | |
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1970 |
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1971 if (ctx->length > 0) { |
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1972 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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1973 "upstream prematurely closed stream"); |
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1974 return NGX_ERROR; |
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1975 } |
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1976 |
| 7233 | 1977 u->length = 0; |
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1978 ctx->done = 1; |
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1979 |
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1980 } else { |
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1981 u->length = 1; |
| 7233 | 1982 } |
| 1983 | |
| 1984 return NGX_OK; | |
| 1985 } | |
| 1986 | |
| 1987 | |
| 1988 static ngx_int_t | |
| 1989 ngx_http_grpc_filter(void *data, ssize_t bytes) | |
| 1990 { | |
| 1991 ngx_http_grpc_ctx_t *ctx = data; | |
| 1992 | |
| 1993 ngx_int_t rc; | |
| 1994 ngx_buf_t *b, *buf; | |
| 1995 ngx_chain_t *cl, **ll; | |
| 1996 ngx_table_elt_t *h; | |
| 1997 ngx_http_request_t *r; | |
| 1998 ngx_http_upstream_t *u; | |
| 1999 | |
| 2000 r = ctx->request; | |
| 2001 u = r->upstream; | |
| 2002 b = &u->buffer; | |
| 2003 | |
| 2004 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2005 "grpc filter bytes:%z", bytes); | |
| 2006 | |
| 2007 b->pos = b->last; | |
| 2008 b->last += bytes; | |
| 2009 | |
| 2010 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
| 2011 ll = &cl->next; | |
| 2012 } | |
| 2013 | |
| 2014 for ( ;; ) { | |
| 2015 | |
| 2016 if (ctx->state < ngx_http_grpc_st_payload) { | |
| 2017 | |
| 2018 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
| 2019 | |
| 2020 if (rc == NGX_AGAIN) { | |
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2021 |
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2022 if (ctx->done) { |
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2023 |
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2024 if (ctx->length > 0) { |
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2025 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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2026 "upstream prematurely closed stream"); |
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2027 return NGX_ERROR; |
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2028 } |
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2029 |
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2030 /* |
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2031 * We have finished parsing the response and the |
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2032 * remaining control frames. If there are unsent |
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2033 * control frames, post a write event to send them. |
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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 if (ctx->out) { |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2037 ngx_post_event(u->peer.connection->write, |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2038 &ngx_posted_events); |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2039 return NGX_AGAIN; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2040 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2041 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2042 u->length = 0; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2043 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2044 if (ctx->in == NULL |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2045 && ctx->output_closed |
|
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
2046 && !ctx->output_blocked |
|
8734
f5732fa038ad
gRPC: handling GOAWAY with a higher last stream identifier.
Sergey Kandaurov <pluknet@nginx.com>
parents:
8366
diff
changeset
|
2047 && !ctx->goaway |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2048 && ctx->state == ngx_http_grpc_st_start) |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2049 { |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2050 u->keepalive = 1; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2051 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2052 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2053 break; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2054 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2055 |
| 7233 | 2056 return NGX_AGAIN; |
| 2057 } | |
| 2058 | |
| 2059 if (rc == NGX_ERROR) { | |
| 2060 return NGX_ERROR; | |
| 2061 } | |
| 2062 | |
| 2063 if ((ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
| 2064 && !ctx->parsing_headers) | |
| 2065 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
| 2066 && ctx->parsing_headers)) | |
| 2067 { | |
| 2068 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2069 "upstream sent unexpected http2 frame: %d", | |
| 2070 ctx->type); | |
| 2071 return NGX_ERROR; | |
| 2072 } | |
| 2073 | |
| 2074 if (ctx->type == NGX_HTTP_V2_DATA_FRAME) { | |
| 2075 | |
| 2076 if (ctx->stream_id != ctx->id) { | |
| 2077 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2078 "upstream sent data frame " | |
| 2079 "for unknown stream %ui", | |
| 2080 ctx->stream_id); | |
| 2081 return NGX_ERROR; | |
| 2082 } | |
| 2083 | |
| 2084 if (ctx->rest > ctx->recv_window) { | |
| 2085 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2086 "upstream violated stream flow control, " | |
| 2087 "received %uz data frame with window %uz", | |
| 2088 ctx->rest, ctx->recv_window); | |
| 2089 return NGX_ERROR; | |
| 2090 } | |
| 2091 | |
| 2092 if (ctx->rest > ctx->connection->recv_window) { | |
| 2093 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2094 "upstream violated connection flow control, " | |
| 2095 "received %uz data frame with window %uz", | |
| 2096 ctx->rest, ctx->connection->recv_window); | |
| 2097 return NGX_ERROR; | |
| 2098 } | |
| 2099 | |
| 2100 ctx->recv_window -= ctx->rest; | |
| 2101 ctx->connection->recv_window -= ctx->rest; | |
| 2102 | |
| 2103 if (ctx->connection->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4 | |
| 2104 || ctx->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4) | |
| 2105 { | |
| 2106 if (ngx_http_grpc_send_window_update(r, ctx) != NGX_OK) { | |
| 2107 return NGX_ERROR; | |
| 2108 } | |
| 2109 | |
| 2110 ngx_post_event(u->peer.connection->write, | |
| 2111 &ngx_posted_events); | |
| 2112 } | |
| 2113 } | |
| 2114 | |
| 2115 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
| 2116 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2117 "upstream sent frame for unknown stream %ui", | |
| 2118 ctx->stream_id); | |
| 2119 return NGX_ERROR; | |
| 2120 } | |
| 2121 | |
|
7892
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2122 if (ctx->stream_id && ctx->done |
|
7893
716eddd74bc2
gRPC: WINDOW_UPDATE after END_STREAM handling (ticket #1797).
Ruslan Ermilov <ru@nginx.com>
parents:
7892
diff
changeset
|
2123 && ctx->type != NGX_HTTP_V2_RST_STREAM_FRAME |
|
716eddd74bc2
gRPC: WINDOW_UPDATE after END_STREAM handling (ticket #1797).
Ruslan Ermilov <ru@nginx.com>
parents:
7892
diff
changeset
|
2124 && ctx->type != NGX_HTTP_V2_WINDOW_UPDATE_FRAME) |
|
7892
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2125 { |
|
7349
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gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2126 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2127 "upstream sent frame for closed stream %ui", |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2128 ctx->stream_id); |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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changeset
|
2129 return NGX_ERROR; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2130 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2131 |
| 7233 | 2132 ctx->padding = 0; |
| 2133 } | |
| 2134 | |
| 2135 if (ctx->state == ngx_http_grpc_st_padding) { | |
| 2136 | |
| 2137 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2138 ctx->rest -= b->last - b->pos; | |
| 2139 b->pos = b->last; | |
| 2140 return NGX_AGAIN; | |
| 2141 } | |
| 2142 | |
| 2143 b->pos += ctx->rest; | |
| 2144 ctx->rest = 0; | |
| 2145 ctx->state = ngx_http_grpc_st_start; | |
| 2146 | |
| 2147 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
|
2148 ctx->done = 1; |
| 7233 | 2149 } |
| 2150 | |
| 2151 continue; | |
| 2152 } | |
| 2153 | |
| 2154 /* frame payload */ | |
| 2155 | |
| 2156 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
| 2157 | |
| 2158 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
| 2159 | |
| 2160 if (rc == NGX_AGAIN) { | |
| 2161 return NGX_AGAIN; | |
| 2162 } | |
| 2163 | |
| 2164 if (rc == NGX_ERROR) { | |
| 2165 return NGX_ERROR; | |
| 2166 } | |
| 2167 | |
|
7892
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2168 if (ctx->error || !ctx->done) { |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2169 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
|
2170 "upstream rejected request with error %ui", |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2171 ctx->error); |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2172 return NGX_ERROR; |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2173 } |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2174 |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2175 if (ctx->rst) { |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2176 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
|
2177 "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
|
2178 ctx->stream_id); |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2179 return NGX_ERROR; |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2180 } |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2181 |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2182 ctx->rst = 1; |
| 7233 | 2183 } |
| 2184 | |
| 2185 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
| 2186 | |
| 2187 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
| 2188 | |
| 2189 if (rc == NGX_AGAIN) { | |
| 2190 return NGX_AGAIN; | |
| 2191 } | |
| 2192 | |
| 2193 if (rc == NGX_ERROR) { | |
| 2194 return NGX_ERROR; | |
| 2195 } | |
| 2196 | |
| 2197 /* | |
| 2198 * If stream_id is lower than one we use, our | |
| 2199 * request won't be processed and needs to be retried. | |
| 2200 * If stream_id is greater or equal to the one we use, | |
| 2201 * we can continue normally (except we can't use this | |
| 2202 * connection for additional requests). If there is | |
| 2203 * a real error, the connection will be closed. | |
| 2204 */ | |
| 2205 | |
| 2206 if (ctx->stream_id < ctx->id) { | |
| 2207 | |
| 2208 /* TODO: we can retry non-idempotent requests */ | |
| 2209 | |
| 2210 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2211 "upstream sent goaway with error %ui", | |
| 2212 ctx->error); | |
| 2213 | |
| 2214 return NGX_ERROR; | |
| 2215 } | |
| 2216 | |
|
8734
f5732fa038ad
gRPC: handling GOAWAY with a higher last stream identifier.
Sergey Kandaurov <pluknet@nginx.com>
parents:
8366
diff
changeset
|
2217 ctx->goaway = 1; |
|
f5732fa038ad
gRPC: handling GOAWAY with a higher last stream identifier.
Sergey Kandaurov <pluknet@nginx.com>
parents:
8366
diff
changeset
|
2218 |
| 7233 | 2219 continue; |
| 2220 } | |
| 2221 | |
| 2222 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
| 2223 | |
| 2224 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
| 2225 | |
| 2226 if (rc == NGX_AGAIN) { | |
| 2227 return NGX_AGAIN; | |
| 2228 } | |
| 2229 | |
| 2230 if (rc == NGX_ERROR) { | |
| 2231 return NGX_ERROR; | |
| 2232 } | |
| 2233 | |
| 2234 if (ctx->in) { | |
| 2235 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2236 } | |
| 2237 | |
| 2238 continue; | |
| 2239 } | |
| 2240 | |
| 2241 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
| 2242 | |
| 2243 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
| 2244 | |
| 2245 if (rc == NGX_AGAIN) { | |
| 2246 return NGX_AGAIN; | |
| 2247 } | |
| 2248 | |
| 2249 if (rc == NGX_ERROR) { | |
| 2250 return NGX_ERROR; | |
| 2251 } | |
| 2252 | |
| 2253 if (ctx->in) { | |
| 2254 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2255 } | |
| 2256 | |
| 2257 continue; | |
| 2258 } | |
| 2259 | |
| 2260 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
| 2261 | |
| 2262 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
| 2263 | |
| 2264 if (rc == NGX_AGAIN) { | |
| 2265 return NGX_AGAIN; | |
| 2266 } | |
| 2267 | |
| 2268 if (rc == NGX_ERROR) { | |
| 2269 return NGX_ERROR; | |
| 2270 } | |
| 2271 | |
| 2272 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2273 continue; | |
| 2274 } | |
| 2275 | |
| 2276 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
| 2277 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2278 "upstream sent unexpected push promise frame"); | |
| 2279 return NGX_ERROR; | |
| 2280 } | |
| 2281 | |
| 2282 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME | |
| 2283 || ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) | |
| 2284 { | |
| 2285 for ( ;; ) { | |
| 2286 | |
| 2287 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
| 2288 | |
| 2289 if (rc == NGX_AGAIN) { | |
| 2290 break; | |
| 2291 } | |
| 2292 | |
| 2293 if (rc == NGX_OK) { | |
| 2294 | |
| 2295 /* a header line has been parsed successfully */ | |
| 2296 | |
| 2297 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2298 "grpc trailer: \"%V: %V\"", | |
| 2299 &ctx->name, &ctx->value); | |
| 2300 | |
| 2301 if (ctx->name.len && ctx->name.data[0] == ':') { | |
| 2302 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2303 "upstream sent invalid " | |
| 2304 "trailer \"%V: %V\"", | |
| 2305 &ctx->name, &ctx->value); | |
| 2306 return NGX_ERROR; | |
| 2307 } | |
| 2308 | |
| 2309 h = ngx_list_push(&u->headers_in.trailers); | |
| 2310 if (h == NULL) { | |
| 2311 return NGX_ERROR; | |
| 2312 } | |
| 2313 | |
| 2314 h->key = ctx->name; | |
| 2315 h->value = ctx->value; | |
| 2316 h->lowcase_key = h->key.data; | |
| 2317 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
| 2318 | |
| 2319 continue; | |
| 2320 } | |
| 2321 | |
| 2322 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
| 2323 | |
| 2324 /* a whole header has been parsed successfully */ | |
| 2325 | |
| 2326 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2327 "grpc trailer done"); | |
| 2328 | |
| 2329 if (ctx->end_stream) { | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2330 ctx->done = 1; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2331 break; |
| 7233 | 2332 } |
| 2333 | |
| 2334 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2335 "upstream sent trailer without " | |
| 2336 "end stream flag"); | |
| 2337 return NGX_ERROR; | |
| 2338 } | |
| 2339 | |
| 2340 /* there was error while a header line parsing */ | |
| 2341 | |
| 2342 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2343 "upstream sent invalid trailer"); | |
| 2344 | |
| 2345 return NGX_ERROR; | |
| 2346 } | |
| 2347 | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2348 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2349 continue; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2350 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2351 |
| 7233 | 2352 /* rc == NGX_AGAIN */ |
| 2353 | |
| 2354 if (ctx->rest == 0) { | |
| 2355 ctx->state = ngx_http_grpc_st_start; | |
| 2356 continue; | |
| 2357 } | |
| 2358 | |
| 2359 return NGX_AGAIN; | |
| 2360 } | |
| 2361 | |
| 2362 if (ctx->type != NGX_HTTP_V2_DATA_FRAME) { | |
| 2363 | |
| 2364 /* priority, unknown frames */ | |
| 2365 | |
| 2366 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2367 ctx->rest -= b->last - b->pos; | |
| 2368 b->pos = b->last; | |
| 2369 return NGX_AGAIN; | |
| 2370 } | |
| 2371 | |
| 2372 b->pos += ctx->rest; | |
| 2373 ctx->rest = 0; | |
| 2374 ctx->state = ngx_http_grpc_st_start; | |
| 2375 | |
| 2376 continue; | |
| 2377 } | |
| 2378 | |
| 2379 /* | |
| 2380 * data frame: | |
| 2381 * | |
| 2382 * +---------------+ | |
| 2383 * |Pad Length? (8)| | |
| 2384 * +---------------+-----------------------------------------------+ | |
| 2385 * | Data (*) ... | |
| 2386 * +---------------------------------------------------------------+ | |
| 2387 * | Padding (*) ... | |
| 2388 * +---------------------------------------------------------------+ | |
| 2389 */ | |
| 2390 | |
| 2391 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
| 2392 | |
| 2393 if (ctx->rest == 0) { | |
| 2394 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2395 "upstream sent too short http2 frame"); | |
| 2396 return NGX_ERROR; | |
| 2397 } | |
| 2398 | |
| 2399 if (b->pos == b->last) { | |
| 2400 return NGX_AGAIN; | |
| 2401 } | |
| 2402 | |
| 2403 ctx->flags &= ~NGX_HTTP_V2_PADDED_FLAG; | |
| 2404 ctx->padding = *b->pos++; | |
| 2405 ctx->rest -= 1; | |
| 2406 | |
| 2407 if (ctx->padding > ctx->rest) { | |
| 2408 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2409 "upstream sent http2 frame with too long " | |
| 2410 "padding: %d in frame %uz", | |
| 2411 ctx->padding, ctx->rest); | |
| 2412 return NGX_ERROR; | |
| 2413 } | |
| 2414 | |
| 2415 continue; | |
| 2416 } | |
| 2417 | |
| 2418 if (ctx->rest == ctx->padding) { | |
| 2419 goto done; | |
| 2420 } | |
| 2421 | |
| 2422 if (b->pos == b->last) { | |
| 2423 return NGX_AGAIN; | |
| 2424 } | |
| 2425 | |
| 2426 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
| 2427 if (cl == NULL) { | |
| 2428 return NGX_ERROR; | |
| 2429 } | |
| 2430 | |
| 2431 *ll = cl; | |
| 2432 ll = &cl->next; | |
| 2433 | |
| 2434 buf = cl->buf; | |
| 2435 | |
| 2436 buf->flush = 1; | |
| 2437 buf->memory = 1; | |
| 2438 | |
| 2439 buf->pos = b->pos; | |
| 2440 buf->tag = u->output.tag; | |
| 2441 | |
| 2442 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2443 "grpc output buf %p", buf->pos); | |
| 2444 | |
| 2445 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
| 2446 | |
| 2447 ctx->rest -= b->last - b->pos; | |
| 2448 b->pos = b->last; | |
| 2449 buf->last = b->pos; | |
| 2450 | |
|
8366
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2451 if (ctx->length != -1) { |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2452 |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2453 if (buf->last - buf->pos > ctx->length) { |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2454 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2455 "upstream sent response body larger " |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2456 "than indicated content length"); |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2457 return NGX_ERROR; |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2458 } |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2459 |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2460 ctx->length -= buf->last - buf->pos; |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2461 } |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2462 |
| 7233 | 2463 return NGX_AGAIN; |
| 2464 } | |
| 2465 | |
| 2466 b->pos += ctx->rest - ctx->padding; | |
| 2467 buf->last = b->pos; | |
| 2468 ctx->rest = ctx->padding; | |
| 2469 | |
|
8366
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2470 if (ctx->length != -1) { |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2471 |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2472 if (buf->last - buf->pos > ctx->length) { |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2473 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2474 "upstream sent response body larger " |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2475 "than indicated content length"); |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2476 return NGX_ERROR; |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2477 } |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2478 |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2479 ctx->length -= buf->last - buf->pos; |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2480 } |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8336
diff
changeset
|
2481 |
| 7233 | 2482 done: |
| 2483 | |
| 2484 if (ctx->padding) { | |
| 2485 ctx->state = ngx_http_grpc_st_padding; | |
| 2486 continue; | |
| 2487 } | |
| 2488 | |
| 2489 ctx->state = ngx_http_grpc_st_start; | |
| 2490 | |
| 2491 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2492 ctx->done = 1; |
| 7233 | 2493 } |
| 2494 } | |
| 2495 | |
| 2496 return NGX_OK; | |
| 2497 } | |
| 2498 | |
| 2499 | |
| 2500 static ngx_int_t | |
| 2501 ngx_http_grpc_parse_frame(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2502 ngx_buf_t *b) | |
| 2503 { | |
| 2504 u_char ch, *p; | |
| 2505 ngx_http_grpc_state_e state; | |
| 2506 | |
| 2507 state = ctx->state; | |
| 2508 | |
| 2509 for (p = b->pos; p < b->last; p++) { | |
| 2510 ch = *p; | |
| 2511 | |
| 2512 #if 0 | |
| 2513 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2514 "grpc frame byte: %02Xd, s:%d", ch, state); | |
| 2515 #endif | |
| 2516 | |
| 2517 switch (state) { | |
| 2518 | |
| 2519 case ngx_http_grpc_st_start: | |
| 2520 ctx->rest = ch << 16; | |
| 2521 state = ngx_http_grpc_st_length_2; | |
| 2522 break; | |
| 2523 | |
| 2524 case ngx_http_grpc_st_length_2: | |
| 2525 ctx->rest |= ch << 8; | |
| 2526 state = ngx_http_grpc_st_length_3; | |
| 2527 break; | |
| 2528 | |
| 2529 case ngx_http_grpc_st_length_3: | |
| 2530 ctx->rest |= ch; | |
| 2531 | |
| 2532 if (ctx->rest > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 2533 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2534 "upstream sent too large http2 frame: %uz", | |
| 2535 ctx->rest); | |
| 2536 return NGX_ERROR; | |
| 2537 } | |
| 2538 | |
| 2539 state = ngx_http_grpc_st_type; | |
| 2540 break; | |
| 2541 | |
| 2542 case ngx_http_grpc_st_type: | |
| 2543 ctx->type = ch; | |
| 2544 state = ngx_http_grpc_st_flags; | |
| 2545 break; | |
| 2546 | |
| 2547 case ngx_http_grpc_st_flags: | |
| 2548 ctx->flags = ch; | |
| 2549 state = ngx_http_grpc_st_stream_id; | |
| 2550 break; | |
| 2551 | |
| 2552 case ngx_http_grpc_st_stream_id: | |
| 2553 ctx->stream_id = (ch & 0x7f) << 24; | |
| 2554 state = ngx_http_grpc_st_stream_id_2; | |
| 2555 break; | |
| 2556 | |
| 2557 case ngx_http_grpc_st_stream_id_2: | |
| 2558 ctx->stream_id |= ch << 16; | |
| 2559 state = ngx_http_grpc_st_stream_id_3; | |
| 2560 break; | |
| 2561 | |
| 2562 case ngx_http_grpc_st_stream_id_3: | |
| 2563 ctx->stream_id |= ch << 8; | |
| 2564 state = ngx_http_grpc_st_stream_id_4; | |
| 2565 break; | |
| 2566 | |
| 2567 case ngx_http_grpc_st_stream_id_4: | |
| 2568 ctx->stream_id |= ch; | |
| 2569 | |
| 2570 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2571 "grpc frame: %d, len: %uz, f:%d, i:%ui", | |
| 2572 ctx->type, ctx->rest, ctx->flags, ctx->stream_id); | |
| 2573 | |
| 2574 b->pos = p + 1; | |
| 2575 | |
| 2576 ctx->state = ngx_http_grpc_st_payload; | |
| 2577 ctx->frame_state = 0; | |
| 2578 | |
| 2579 return NGX_OK; | |
| 2580 | |
| 2581 /* suppress warning */ | |
| 2582 case ngx_http_grpc_st_payload: | |
| 2583 case ngx_http_grpc_st_padding: | |
| 2584 break; | |
| 2585 } | |
| 2586 } | |
| 2587 | |
| 2588 b->pos = p; | |
| 2589 ctx->state = state; | |
| 2590 | |
| 2591 return NGX_AGAIN; | |
| 2592 } | |
| 2593 | |
| 2594 | |
| 2595 static ngx_int_t | |
| 2596 ngx_http_grpc_parse_header(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2597 ngx_buf_t *b) | |
| 2598 { | |
| 2599 u_char ch, *p, *last; | |
| 2600 size_t min; | |
| 2601 ngx_int_t rc; | |
| 2602 enum { | |
| 2603 sw_start = 0, | |
| 2604 sw_padding_length, | |
| 2605 sw_dependency, | |
| 2606 sw_dependency_2, | |
| 2607 sw_dependency_3, | |
| 2608 sw_dependency_4, | |
| 2609 sw_weight, | |
| 2610 sw_fragment, | |
| 2611 sw_padding | |
| 2612 } state; | |
| 2613 | |
| 2614 state = ctx->frame_state; | |
| 2615 | |
| 2616 if (state == sw_start) { | |
| 2617 | |
| 2618 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2619 "grpc parse header: start"); | |
| 2620 | |
| 2621 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME) { | |
| 2622 ctx->parsing_headers = 1; | |
| 2623 ctx->fragment_state = 0; | |
| 2624 | |
| 2625 min = (ctx->flags & NGX_HTTP_V2_PADDED_FLAG ? 1 : 0) | |
| 2626 + (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG ? 5 : 0); | |
| 2627 | |
| 2628 if (ctx->rest < min) { | |
| 2629 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2630 "upstream sent headers frame " | |
| 2631 "with invalid length: %uz", | |
| 2632 ctx->rest); | |
| 2633 return NGX_ERROR; | |
| 2634 } | |
| 2635 | |
| 2636 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
| 2637 ctx->end_stream = 1; | |
| 2638 } | |
| 2639 | |
| 2640 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
| 2641 state = sw_padding_length; | |
| 2642 | |
| 2643 } else if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
| 2644 state = sw_dependency; | |
| 2645 | |
| 2646 } else { | |
| 2647 state = sw_fragment; | |
| 2648 } | |
| 2649 | |
| 2650 } else if (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) { | |
| 2651 state = sw_fragment; | |
| 2652 } | |
| 2653 | |
| 2654 ctx->padding = 0; | |
|
7242
25a4353633a0
gRPC: fixed missing state save in frame header parsing.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7240
diff
changeset
|
2655 ctx->frame_state = state; |
| 7233 | 2656 } |
| 2657 | |
| 2658 if (state < sw_fragment) { | |
| 2659 | |
| 2660 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2661 last = b->last; | |
| 2662 | |
| 2663 } else { | |
| 2664 last = b->pos + ctx->rest; | |
| 2665 } | |
| 2666 | |
| 2667 for (p = b->pos; p < last; p++) { | |
| 2668 ch = *p; | |
| 2669 | |
| 2670 #if 0 | |
| 2671 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2672 "grpc header byte: %02Xd s:%d", ch, state); | |
| 2673 #endif | |
| 2674 | |
| 2675 /* | |
| 2676 * headers frame: | |
| 2677 * | |
| 2678 * +---------------+ | |
| 2679 * |Pad Length? (8)| | |
| 2680 * +-+-------------+----------------------------------------------+ | |
| 2681 * |E| Stream Dependency? (31) | | |
| 2682 * +-+-------------+----------------------------------------------+ | |
| 2683 * | Weight? (8) | | |
| 2684 * +-+-------------+----------------------------------------------+ | |
| 2685 * | Header Block Fragment (*) ... | |
| 2686 * +--------------------------------------------------------------+ | |
| 2687 * | Padding (*) ... | |
| 2688 * +--------------------------------------------------------------+ | |
| 2689 */ | |
| 2690 | |
| 2691 switch (state) { | |
| 2692 | |
| 2693 case sw_padding_length: | |
| 2694 | |
| 2695 ctx->padding = ch; | |
| 2696 | |
| 2697 if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
| 2698 state = sw_dependency; | |
| 2699 break; | |
| 2700 } | |
| 2701 | |
| 2702 goto fragment; | |
| 2703 | |
| 2704 case sw_dependency: | |
| 2705 state = sw_dependency_2; | |
| 2706 break; | |
| 2707 | |
| 2708 case sw_dependency_2: | |
| 2709 state = sw_dependency_3; | |
| 2710 break; | |
| 2711 | |
| 2712 case sw_dependency_3: | |
| 2713 state = sw_dependency_4; | |
| 2714 break; | |
| 2715 | |
| 2716 case sw_dependency_4: | |
| 2717 state = sw_weight; | |
| 2718 break; | |
| 2719 | |
| 2720 case sw_weight: | |
| 2721 goto fragment; | |
| 2722 | |
| 2723 /* suppress warning */ | |
| 2724 case sw_start: | |
| 2725 case sw_fragment: | |
| 2726 case sw_padding: | |
| 2727 break; | |
| 2728 } | |
| 2729 } | |
| 2730 | |
| 2731 ctx->rest -= p - b->pos; | |
| 2732 b->pos = p; | |
| 2733 | |
| 2734 ctx->frame_state = state; | |
| 2735 return NGX_AGAIN; | |
| 2736 | |
| 2737 fragment: | |
| 2738 | |
| 2739 p++; | |
| 2740 ctx->rest -= p - b->pos; | |
| 2741 b->pos = p; | |
| 2742 | |
| 2743 if (ctx->padding > ctx->rest) { | |
| 2744 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2745 "upstream sent http2 frame with too long " | |
| 2746 "padding: %d in frame %uz", | |
| 2747 ctx->padding, ctx->rest); | |
| 2748 return NGX_ERROR; | |
| 2749 } | |
| 2750 | |
| 2751 state = sw_fragment; | |
| 2752 ctx->frame_state = state; | |
| 2753 } | |
| 2754 | |
| 2755 if (state == sw_fragment) { | |
| 2756 | |
| 2757 rc = ngx_http_grpc_parse_fragment(r, ctx, b); | |
| 2758 | |
| 2759 if (rc == NGX_AGAIN) { | |
| 2760 return NGX_AGAIN; | |
| 2761 } | |
| 2762 | |
| 2763 if (rc == NGX_ERROR) { | |
| 2764 return NGX_ERROR; | |
| 2765 } | |
| 2766 | |
| 2767 if (rc == NGX_OK) { | |
| 2768 return NGX_OK; | |
| 2769 } | |
| 2770 | |
| 2771 /* rc == NGX_DONE */ | |
| 2772 | |
| 2773 state = sw_padding; | |
| 2774 ctx->frame_state = state; | |
| 2775 } | |
| 2776 | |
| 2777 if (state == sw_padding) { | |
| 2778 | |
| 2779 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2780 | |
| 2781 ctx->rest -= b->last - b->pos; | |
| 2782 b->pos = b->last; | |
| 2783 | |
| 2784 return NGX_AGAIN; | |
| 2785 } | |
| 2786 | |
| 2787 b->pos += ctx->rest; | |
| 2788 ctx->rest = 0; | |
| 2789 | |
| 2790 ctx->state = ngx_http_grpc_st_start; | |
| 2791 | |
| 2792 if (ctx->flags & NGX_HTTP_V2_END_HEADERS_FLAG) { | |
| 2793 | |
| 2794 if (ctx->fragment_state) { | |
| 2795 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2796 "upstream sent truncated http2 header"); | |
| 2797 return NGX_ERROR; | |
| 2798 } | |
| 2799 | |
| 2800 ctx->parsing_headers = 0; | |
| 2801 | |
| 2802 return NGX_HTTP_PARSE_HEADER_DONE; | |
| 2803 } | |
| 2804 | |
| 2805 return NGX_AGAIN; | |
| 2806 } | |
| 2807 | |
| 2808 /* unreachable */ | |
| 2809 | |
| 2810 return NGX_ERROR; | |
| 2811 } | |
| 2812 | |
| 2813 | |
| 2814 static ngx_int_t | |
| 2815 ngx_http_grpc_parse_fragment(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2816 ngx_buf_t *b) | |
| 2817 { | |
| 2818 u_char ch, *p, *last; | |
| 2819 size_t size; | |
| 2820 ngx_uint_t index, size_update; | |
| 2821 enum { | |
| 2822 sw_start = 0, | |
| 2823 sw_index, | |
| 2824 sw_name_length, | |
| 2825 sw_name_length_2, | |
| 2826 sw_name_length_3, | |
| 2827 sw_name_length_4, | |
| 2828 sw_name, | |
| 2829 sw_name_bytes, | |
| 2830 sw_value_length, | |
| 2831 sw_value_length_2, | |
| 2832 sw_value_length_3, | |
| 2833 sw_value_length_4, | |
| 2834 sw_value, | |
| 2835 sw_value_bytes | |
| 2836 } state; | |
| 2837 | |
| 2838 /* header block fragment */ | |
| 2839 | |
| 2840 #if 0 | |
| 2841 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2842 "grpc header fragment %p:%p rest:%uz", | |
| 2843 b->pos, b->last, ctx->rest); | |
| 2844 #endif | |
| 2845 | |
| 2846 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
| 2847 last = b->last; | |
| 2848 | |
| 2849 } else { | |
| 2850 last = b->pos + ctx->rest - ctx->padding; | |
| 2851 } | |
| 2852 | |
| 2853 state = ctx->fragment_state; | |
| 2854 | |
| 2855 for (p = b->pos; p < last; p++) { | |
| 2856 ch = *p; | |
| 2857 | |
| 2858 #if 0 | |
| 2859 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2860 "grpc header byte: %02Xd s:%d", ch, state); | |
| 2861 #endif | |
| 2862 | |
| 2863 switch (state) { | |
| 2864 | |
| 2865 case sw_start: | |
| 2866 ctx->index = 0; | |
| 2867 | |
| 2868 if ((ch & 0x80) == 0x80) { | |
| 2869 /* | |
| 2870 * indexed header: | |
| 2871 * | |
| 2872 * 0 1 2 3 4 5 6 7 | |
| 2873 * +---+---+---+---+---+---+---+---+ | |
| 2874 * | 1 | Index (7+) | | |
| 2875 * +---+---------------------------+ | |
| 2876 */ | |
| 2877 | |
| 2878 index = ch & ~0x80; | |
| 2879 | |
| 2880 if (index == 0 || index > 61) { | |
| 2881 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2882 "upstream sent invalid http2 " | |
| 2883 "table index: %ui", index); | |
| 2884 return NGX_ERROR; | |
| 2885 } | |
| 2886 | |
| 2887 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2888 "grpc indexed header: %ui", index); | |
| 2889 | |
| 2890 ctx->index = index; | |
| 2891 ctx->literal = 0; | |
| 2892 | |
| 2893 goto done; | |
| 2894 | |
| 2895 } else if ((ch & 0xc0) == 0x40) { | |
| 2896 /* | |
| 2897 * literal header with incremental indexing: | |
| 2898 * | |
| 2899 * 0 1 2 3 4 5 6 7 | |
| 2900 * +---+---+---+---+---+---+---+---+ | |
| 2901 * | 0 | 1 | Index (6+) | | |
| 2902 * +---+---+-----------------------+ | |
| 2903 * | H | Value Length (7+) | | |
| 2904 * +---+---------------------------+ | |
| 2905 * | Value String (Length octets) | | |
| 2906 * +-------------------------------+ | |
| 2907 * | |
| 2908 * 0 1 2 3 4 5 6 7 | |
| 2909 * +---+---+---+---+---+---+---+---+ | |
| 2910 * | 0 | 1 | 0 | | |
| 2911 * +---+---+-----------------------+ | |
| 2912 * | H | Name Length (7+) | | |
| 2913 * +---+---------------------------+ | |
| 2914 * | Name String (Length octets) | | |
| 2915 * +---+---------------------------+ | |
| 2916 * | H | Value Length (7+) | | |
| 2917 * +---+---------------------------+ | |
| 2918 * | Value String (Length octets) | | |
| 2919 * +-------------------------------+ | |
| 2920 */ | |
| 2921 | |
| 2922 index = ch & ~0xc0; | |
| 2923 | |
| 2924 if (index > 61) { | |
| 2925 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2926 "upstream sent invalid http2 " | |
| 2927 "table index: %ui", index); | |
| 2928 return NGX_ERROR; | |
| 2929 } | |
| 2930 | |
| 2931 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2932 "grpc literal header: %ui", index); | |
| 2933 | |
| 2934 if (index == 0) { | |
| 2935 state = sw_name_length; | |
| 2936 break; | |
| 2937 } | |
| 2938 | |
| 2939 ctx->index = index; | |
| 2940 ctx->literal = 1; | |
| 2941 | |
| 2942 state = sw_value_length; | |
| 2943 break; | |
| 2944 | |
| 2945 } else if ((ch & 0xe0) == 0x20) { | |
| 2946 /* | |
| 2947 * dynamic table size update: | |
| 2948 * | |
| 2949 * 0 1 2 3 4 5 6 7 | |
| 2950 * +---+---+---+---+---+---+---+---+ | |
| 2951 * | 0 | 0 | 1 | Max size (5+) | | |
| 2952 * +---+---------------------------+ | |
| 2953 */ | |
| 2954 | |
| 2955 size_update = ch & ~0xe0; | |
| 2956 | |
| 2957 if (size_update > 0) { | |
| 2958 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2959 "upstream sent invalid http2 " | |
| 2960 "dynamic table size update: %ui", | |
| 2961 size_update); | |
| 2962 return NGX_ERROR; | |
| 2963 } | |
| 2964 | |
| 2965 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2966 "grpc table size update: %ui", size_update); | |
| 2967 | |
| 2968 break; | |
| 2969 | |
| 2970 } else if ((ch & 0xf0) == 0x10) { | |
| 2971 /* | |
| 2972 * literal header field never indexed: | |
| 2973 * | |
| 2974 * 0 1 2 3 4 5 6 7 | |
| 2975 * +---+---+---+---+---+---+---+---+ | |
| 2976 * | 0 | 0 | 0 | 1 | Index (4+) | | |
| 2977 * +---+---+-----------------------+ | |
| 2978 * | H | Value Length (7+) | | |
| 2979 * +---+---------------------------+ | |
| 2980 * | Value String (Length octets) | | |
| 2981 * +-------------------------------+ | |
| 2982 * | |
| 2983 * 0 1 2 3 4 5 6 7 | |
| 2984 * +---+---+---+---+---+---+---+---+ | |
| 2985 * | 0 | 0 | 0 | 1 | 0 | | |
| 2986 * +---+---+-----------------------+ | |
| 2987 * | H | Name Length (7+) | | |
| 2988 * +---+---------------------------+ | |
| 2989 * | Name String (Length octets) | | |
| 2990 * +---+---------------------------+ | |
| 2991 * | H | Value Length (7+) | | |
| 2992 * +---+---------------------------+ | |
| 2993 * | Value String (Length octets) | | |
| 2994 * +-------------------------------+ | |
| 2995 */ | |
| 2996 | |
| 2997 index = ch & ~0xf0; | |
| 2998 | |
| 2999 if (index == 0x0f) { | |
| 3000 ctx->index = index; | |
| 3001 ctx->literal = 1; | |
| 3002 state = sw_index; | |
| 3003 break; | |
| 3004 } | |
| 3005 | |
| 3006 if (index == 0) { | |
| 3007 state = sw_name_length; | |
| 3008 break; | |
| 3009 } | |
| 3010 | |
| 3011 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3012 "grpc literal header never indexed: %ui", | |
| 3013 index); | |
| 3014 | |
| 3015 ctx->index = index; | |
| 3016 ctx->literal = 1; | |
| 3017 | |
| 3018 state = sw_value_length; | |
| 3019 break; | |
| 3020 | |
| 3021 } else if ((ch & 0xf0) == 0x00) { | |
| 3022 /* | |
| 3023 * literal header field without indexing: | |
| 3024 * | |
| 3025 * 0 1 2 3 4 5 6 7 | |
| 3026 * +---+---+---+---+---+---+---+---+ | |
| 3027 * | 0 | 0 | 0 | 0 | Index (4+) | | |
| 3028 * +---+---+-----------------------+ | |
| 3029 * | H | Value Length (7+) | | |
| 3030 * +---+---------------------------+ | |
| 3031 * | Value String (Length octets) | | |
| 3032 * +-------------------------------+ | |
| 3033 * | |
| 3034 * 0 1 2 3 4 5 6 7 | |
| 3035 * +---+---+---+---+---+---+---+---+ | |
| 3036 * | 0 | 0 | 0 | 0 | 0 | | |
| 3037 * +---+---+-----------------------+ | |
| 3038 * | H | Name Length (7+) | | |
| 3039 * +---+---------------------------+ | |
| 3040 * | Name String (Length octets) | | |
| 3041 * +---+---------------------------+ | |
| 3042 * | H | Value Length (7+) | | |
| 3043 * +---+---------------------------+ | |
| 3044 * | Value String (Length octets) | | |
| 3045 * +-------------------------------+ | |
| 3046 */ | |
| 3047 | |
| 3048 index = ch & ~0xf0; | |
| 3049 | |
| 3050 if (index == 0x0f) { | |
| 3051 ctx->index = index; | |
| 3052 ctx->literal = 1; | |
| 3053 state = sw_index; | |
| 3054 break; | |
| 3055 } | |
| 3056 | |
| 3057 if (index == 0) { | |
| 3058 state = sw_name_length; | |
| 3059 break; | |
| 3060 } | |
| 3061 | |
| 3062 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3063 "grpc literal header without indexing: %ui", | |
| 3064 index); | |
| 3065 | |
| 3066 ctx->index = index; | |
| 3067 ctx->literal = 1; | |
| 3068 | |
| 3069 state = sw_value_length; | |
| 3070 break; | |
| 3071 } | |
| 3072 | |
| 3073 /* not reached */ | |
| 3074 | |
| 3075 return NGX_ERROR; | |
| 3076 | |
| 3077 case sw_index: | |
| 3078 ctx->index = ctx->index + (ch & ~0x80); | |
| 3079 | |
| 3080 if (ch & 0x80) { | |
| 3081 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3082 "upstream sent http2 table index " | |
| 3083 "with continuation flag"); | |
| 3084 return NGX_ERROR; | |
| 3085 } | |
| 3086 | |
| 3087 if (ctx->index > 61) { | |
| 3088 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3089 "upstream sent invalid http2 " | |
| 3090 "table index: %ui", ctx->index); | |
| 3091 return NGX_ERROR; | |
| 3092 } | |
| 3093 | |
| 3094 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3095 "grpc header index: %ui", ctx->index); | |
| 3096 | |
| 3097 state = sw_value_length; | |
| 3098 break; | |
| 3099 | |
| 3100 case sw_name_length: | |
| 3101 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
| 3102 ctx->field_length = ch & ~0x80; | |
| 3103 | |
| 3104 if (ctx->field_length == 0x7f) { | |
| 3105 state = sw_name_length_2; | |
| 3106 break; | |
| 3107 } | |
| 3108 | |
| 3109 if (ctx->field_length == 0) { | |
| 3110 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3111 "upstream sent zero http2 " | |
| 3112 "header name length"); | |
| 3113 return NGX_ERROR; | |
| 3114 } | |
| 3115 | |
| 3116 state = sw_name; | |
| 3117 break; | |
| 3118 | |
| 3119 case sw_name_length_2: | |
| 3120 ctx->field_length += ch & ~0x80; | |
| 3121 | |
| 3122 if (ch & 0x80) { | |
| 3123 state = sw_name_length_3; | |
| 3124 break; | |
| 3125 } | |
| 3126 | |
| 3127 state = sw_name; | |
| 3128 break; | |
| 3129 | |
| 3130 case sw_name_length_3: | |
| 3131 ctx->field_length += (ch & ~0x80) << 7; | |
| 3132 | |
| 3133 if (ch & 0x80) { | |
| 3134 state = sw_name_length_4; | |
| 3135 break; | |
| 3136 } | |
| 3137 | |
| 3138 state = sw_name; | |
| 3139 break; | |
| 3140 | |
| 3141 case sw_name_length_4: | |
| 3142 ctx->field_length += (ch & ~0x80) << 14; | |
| 3143 | |
| 3144 if (ch & 0x80) { | |
| 3145 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3146 "upstream sent too large http2 " | |
| 3147 "header name length"); | |
| 3148 return NGX_ERROR; | |
| 3149 } | |
| 3150 | |
| 3151 state = sw_name; | |
| 3152 break; | |
| 3153 | |
| 3154 case sw_name: | |
| 3155 ctx->name.len = ctx->field_huffman ? | |
| 3156 ctx->field_length * 8 / 5 : ctx->field_length; | |
| 3157 | |
| 3158 ctx->name.data = ngx_pnalloc(r->pool, ctx->name.len + 1); | |
| 3159 if (ctx->name.data == NULL) { | |
| 3160 return NGX_ERROR; | |
| 3161 } | |
| 3162 | |
| 3163 ctx->field_end = ctx->name.data; | |
| 3164 ctx->field_rest = ctx->field_length; | |
| 3165 ctx->field_state = 0; | |
| 3166 | |
| 3167 state = sw_name_bytes; | |
| 3168 | |
| 3169 /* fall through */ | |
| 3170 | |
| 3171 case sw_name_bytes: | |
| 3172 | |
| 3173 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3174 "grpc name: len:%uz h:%d last:%uz, rest:%uz", | |
| 3175 ctx->field_length, | |
| 3176 ctx->field_huffman, | |
| 3177 last - p, | |
| 3178 ctx->rest - (p - b->pos)); | |
| 3179 | |
| 3180 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
| 3181 ctx->field_rest -= size; | |
| 3182 | |
| 3183 if (ctx->field_huffman) { | |
| 3184 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
| 3185 &ctx->field_end, | |
| 3186 ctx->field_rest == 0, | |
| 3187 r->connection->log) | |
| 3188 != NGX_OK) | |
| 3189 { | |
| 3190 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3191 "upstream sent invalid encoded header"); | |
| 3192 return NGX_ERROR; | |
| 3193 } | |
| 3194 | |
| 3195 ctx->name.len = ctx->field_end - ctx->name.data; | |
| 3196 ctx->name.data[ctx->name.len] = '\0'; | |
| 3197 | |
| 3198 } else { | |
|
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3199 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
| 7233 | 3200 ctx->name.data[ctx->name.len] = '\0'; |
| 3201 } | |
| 3202 | |
| 3203 p += size - 1; | |
| 3204 | |
| 3205 if (ctx->field_rest == 0) { | |
| 3206 state = sw_value_length; | |
| 3207 } | |
| 3208 | |
| 3209 break; | |
| 3210 | |
| 3211 case sw_value_length: | |
| 3212 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
| 3213 ctx->field_length = ch & ~0x80; | |
| 3214 | |
| 3215 if (ctx->field_length == 0x7f) { | |
| 3216 state = sw_value_length_2; | |
| 3217 break; | |
| 3218 } | |
| 3219 | |
| 3220 if (ctx->field_length == 0) { | |
| 3221 ngx_str_set(&ctx->value, ""); | |
| 3222 goto done; | |
| 3223 } | |
| 3224 | |
| 3225 state = sw_value; | |
| 3226 break; | |
| 3227 | |
| 3228 case sw_value_length_2: | |
| 3229 ctx->field_length += ch & ~0x80; | |
| 3230 | |
| 3231 if (ch & 0x80) { | |
| 3232 state = sw_value_length_3; | |
| 3233 break; | |
| 3234 } | |
| 3235 | |
| 3236 state = sw_value; | |
| 3237 break; | |
| 3238 | |
| 3239 case sw_value_length_3: | |
| 3240 ctx->field_length += (ch & ~0x80) << 7; | |
| 3241 | |
| 3242 if (ch & 0x80) { | |
| 3243 state = sw_value_length_4; | |
| 3244 break; | |
| 3245 } | |
| 3246 | |
| 3247 state = sw_value; | |
| 3248 break; | |
| 3249 | |
| 3250 case sw_value_length_4: | |
| 3251 ctx->field_length += (ch & ~0x80) << 14; | |
| 3252 | |
| 3253 if (ch & 0x80) { | |
| 3254 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3255 "upstream sent too large http2 " | |
| 3256 "header value length"); | |
| 3257 return NGX_ERROR; | |
| 3258 } | |
| 3259 | |
| 3260 state = sw_value; | |
| 3261 break; | |
| 3262 | |
| 3263 case sw_value: | |
| 3264 ctx->value.len = ctx->field_huffman ? | |
| 3265 ctx->field_length * 8 / 5 : ctx->field_length; | |
| 3266 | |
| 3267 ctx->value.data = ngx_pnalloc(r->pool, ctx->value.len + 1); | |
| 3268 if (ctx->value.data == NULL) { | |
| 3269 return NGX_ERROR; | |
| 3270 } | |
| 3271 | |
| 3272 ctx->field_end = ctx->value.data; | |
| 3273 ctx->field_rest = ctx->field_length; | |
| 3274 ctx->field_state = 0; | |
| 3275 | |
| 3276 state = sw_value_bytes; | |
| 3277 | |
| 3278 /* fall through */ | |
| 3279 | |
| 3280 case sw_value_bytes: | |
| 3281 | |
| 3282 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3283 "grpc value: len:%uz h:%d last:%uz, rest:%uz", | |
| 3284 ctx->field_length, | |
| 3285 ctx->field_huffman, | |
| 3286 last - p, | |
| 3287 ctx->rest - (p - b->pos)); | |
| 3288 | |
| 3289 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
| 3290 ctx->field_rest -= size; | |
| 3291 | |
| 3292 if (ctx->field_huffman) { | |
| 3293 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
| 3294 &ctx->field_end, | |
| 3295 ctx->field_rest == 0, | |
| 3296 r->connection->log) | |
| 3297 != NGX_OK) | |
| 3298 { | |
| 3299 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3300 "upstream sent invalid encoded header"); | |
| 3301 return NGX_ERROR; | |
| 3302 } | |
| 3303 | |
| 3304 ctx->value.len = ctx->field_end - ctx->value.data; | |
| 3305 ctx->value.data[ctx->value.len] = '\0'; | |
| 3306 | |
| 3307 } else { | |
|
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3308 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
| 7233 | 3309 ctx->value.data[ctx->value.len] = '\0'; |
| 3310 } | |
| 3311 | |
| 3312 p += size - 1; | |
| 3313 | |
| 3314 if (ctx->field_rest == 0) { | |
| 3315 goto done; | |
| 3316 } | |
| 3317 | |
| 3318 break; | |
| 3319 } | |
| 3320 | |
| 3321 continue; | |
| 3322 | |
| 3323 done: | |
| 3324 | |
| 3325 p++; | |
| 3326 ctx->rest -= p - b->pos; | |
| 3327 ctx->fragment_state = sw_start; | |
| 3328 b->pos = p; | |
| 3329 | |
| 3330 if (ctx->index) { | |
| 3331 ctx->name = *ngx_http_v2_get_static_name(ctx->index); | |
| 3332 } | |
| 3333 | |
| 3334 if (ctx->index && !ctx->literal) { | |
| 3335 ctx->value = *ngx_http_v2_get_static_value(ctx->index); | |
| 3336 } | |
| 3337 | |
| 3338 if (!ctx->index) { | |
| 3339 if (ngx_http_grpc_validate_header_name(r, &ctx->name) != NGX_OK) { | |
| 3340 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3341 "upstream sent invalid header: \"%V: %V\"", | |
| 3342 &ctx->name, &ctx->value); | |
| 3343 return NGX_ERROR; | |
| 3344 } | |
| 3345 } | |
| 3346 | |
| 3347 if (!ctx->index || ctx->literal) { | |
| 3348 if (ngx_http_grpc_validate_header_value(r, &ctx->value) != NGX_OK) { | |
| 3349 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3350 "upstream sent invalid header: \"%V: %V\"", | |
| 3351 &ctx->name, &ctx->value); | |
| 3352 return NGX_ERROR; | |
| 3353 } | |
| 3354 } | |
| 3355 | |
| 3356 return NGX_OK; | |
| 3357 } | |
| 3358 | |
| 3359 ctx->rest -= p - b->pos; | |
| 3360 ctx->fragment_state = state; | |
| 3361 b->pos = p; | |
| 3362 | |
| 3363 if (ctx->rest > ctx->padding) { | |
| 3364 return NGX_AGAIN; | |
| 3365 } | |
| 3366 | |
| 3367 return NGX_DONE; | |
| 3368 } | |
| 3369 | |
| 3370 | |
| 3371 static ngx_int_t | |
| 3372 ngx_http_grpc_validate_header_name(ngx_http_request_t *r, ngx_str_t *s) | |
| 3373 { | |
| 3374 u_char ch; | |
| 3375 ngx_uint_t i; | |
| 3376 | |
| 3377 for (i = 0; i < s->len; i++) { | |
| 3378 ch = s->data[i]; | |
| 3379 | |
| 3380 if (ch == ':' && i > 0) { | |
| 3381 return NGX_ERROR; | |
| 3382 } | |
| 3383 | |
| 3384 if (ch >= 'A' && ch <= 'Z') { | |
| 3385 return NGX_ERROR; | |
| 3386 } | |
| 3387 | |
| 3388 if (ch == '\0' || ch == CR || ch == LF) { | |
| 3389 return NGX_ERROR; | |
| 3390 } | |
| 3391 } | |
| 3392 | |
| 3393 return NGX_OK; | |
| 3394 } | |
| 3395 | |
| 3396 | |
| 3397 static ngx_int_t | |
| 3398 ngx_http_grpc_validate_header_value(ngx_http_request_t *r, ngx_str_t *s) | |
| 3399 { | |
| 3400 u_char ch; | |
| 3401 ngx_uint_t i; | |
| 3402 | |
| 3403 for (i = 0; i < s->len; i++) { | |
| 3404 ch = s->data[i]; | |
| 3405 | |
| 3406 if (ch == '\0' || ch == CR || ch == LF) { | |
| 3407 return NGX_ERROR; | |
| 3408 } | |
| 3409 } | |
| 3410 | |
| 3411 return NGX_OK; | |
| 3412 } | |
| 3413 | |
| 3414 | |
| 3415 static ngx_int_t | |
| 3416 ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3417 ngx_buf_t *b) | |
| 3418 { | |
| 3419 u_char ch, *p, *last; | |
| 3420 enum { | |
| 3421 sw_start = 0, | |
| 3422 sw_error_2, | |
| 3423 sw_error_3, | |
| 3424 sw_error_4 | |
| 3425 } state; | |
| 3426 | |
| 3427 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3428 last = b->last; | |
| 3429 | |
| 3430 } else { | |
| 3431 last = b->pos + ctx->rest; | |
| 3432 } | |
| 3433 | |
| 3434 state = ctx->frame_state; | |
| 3435 | |
| 3436 if (state == sw_start) { | |
| 3437 if (ctx->rest != 4) { | |
| 3438 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3439 "upstream sent rst stream frame " | |
| 3440 "with invalid length: %uz", | |
| 3441 ctx->rest); | |
| 3442 return NGX_ERROR; | |
| 3443 } | |
| 3444 } | |
| 3445 | |
| 3446 for (p = b->pos; p < last; p++) { | |
| 3447 ch = *p; | |
| 3448 | |
| 3449 #if 0 | |
| 3450 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3451 "grpc rst byte: %02Xd s:%d", ch, state); | |
| 3452 #endif | |
| 3453 | |
| 3454 switch (state) { | |
| 3455 | |
| 3456 case sw_start: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3457 ctx->error = (ngx_uint_t) ch << 24; |
| 7233 | 3458 state = sw_error_2; |
| 3459 break; | |
| 3460 | |
| 3461 case sw_error_2: | |
| 3462 ctx->error |= ch << 16; | |
| 3463 state = sw_error_3; | |
| 3464 break; | |
| 3465 | |
| 3466 case sw_error_3: | |
| 3467 ctx->error |= ch << 8; | |
| 3468 state = sw_error_4; | |
| 3469 break; | |
| 3470 | |
| 3471 case sw_error_4: | |
| 3472 ctx->error |= ch; | |
| 3473 state = sw_start; | |
| 3474 | |
| 3475 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3476 "grpc error: %ui", ctx->error); | |
| 3477 | |
| 3478 break; | |
| 3479 } | |
| 3480 } | |
| 3481 | |
| 3482 ctx->rest -= p - b->pos; | |
| 3483 ctx->frame_state = state; | |
| 3484 b->pos = p; | |
| 3485 | |
| 3486 if (ctx->rest > 0) { | |
| 3487 return NGX_AGAIN; | |
| 3488 } | |
| 3489 | |
| 3490 return NGX_OK; | |
| 3491 } | |
| 3492 | |
| 3493 | |
| 3494 static ngx_int_t | |
| 3495 ngx_http_grpc_parse_goaway(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3496 ngx_buf_t *b) | |
| 3497 { | |
| 3498 u_char ch, *p, *last; | |
| 3499 enum { | |
| 3500 sw_start = 0, | |
| 3501 sw_last_stream_id_2, | |
| 3502 sw_last_stream_id_3, | |
| 3503 sw_last_stream_id_4, | |
| 3504 sw_error, | |
| 3505 sw_error_2, | |
| 3506 sw_error_3, | |
| 3507 sw_error_4, | |
| 3508 sw_debug | |
| 3509 } state; | |
| 3510 | |
| 3511 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3512 last = b->last; | |
| 3513 | |
| 3514 } else { | |
| 3515 last = b->pos + ctx->rest; | |
| 3516 } | |
| 3517 | |
| 3518 state = ctx->frame_state; | |
| 3519 | |
| 3520 if (state == sw_start) { | |
| 3521 | |
| 3522 if (ctx->stream_id) { | |
| 3523 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3524 "upstream sent goaway frame " | |
| 3525 "with non-zero stream id: %ui", | |
| 3526 ctx->stream_id); | |
| 3527 return NGX_ERROR; | |
| 3528 } | |
| 3529 | |
| 3530 if (ctx->rest < 8) { | |
| 3531 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3532 "upstream sent goaway frame " | |
| 3533 "with invalid length: %uz", | |
| 3534 ctx->rest); | |
| 3535 return NGX_ERROR; | |
| 3536 } | |
| 3537 } | |
| 3538 | |
| 3539 for (p = b->pos; p < last; p++) { | |
| 3540 ch = *p; | |
| 3541 | |
| 3542 #if 0 | |
| 3543 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3544 "grpc goaway byte: %02Xd s:%d", ch, state); | |
| 3545 #endif | |
| 3546 | |
| 3547 switch (state) { | |
| 3548 | |
| 3549 case sw_start: | |
| 3550 ctx->stream_id = (ch & 0x7f) << 24; | |
| 3551 state = sw_last_stream_id_2; | |
| 3552 break; | |
| 3553 | |
| 3554 case sw_last_stream_id_2: | |
| 3555 ctx->stream_id |= ch << 16; | |
| 3556 state = sw_last_stream_id_3; | |
| 3557 break; | |
| 3558 | |
| 3559 case sw_last_stream_id_3: | |
| 3560 ctx->stream_id |= ch << 8; | |
| 3561 state = sw_last_stream_id_4; | |
| 3562 break; | |
| 3563 | |
| 3564 case sw_last_stream_id_4: | |
| 3565 ctx->stream_id |= ch; | |
| 3566 state = sw_error; | |
| 3567 break; | |
| 3568 | |
| 3569 case sw_error: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3570 ctx->error = (ngx_uint_t) ch << 24; |
| 7233 | 3571 state = sw_error_2; |
| 3572 break; | |
| 3573 | |
| 3574 case sw_error_2: | |
| 3575 ctx->error |= ch << 16; | |
| 3576 state = sw_error_3; | |
| 3577 break; | |
| 3578 | |
| 3579 case sw_error_3: | |
| 3580 ctx->error |= ch << 8; | |
| 3581 state = sw_error_4; | |
| 3582 break; | |
| 3583 | |
| 3584 case sw_error_4: | |
| 3585 ctx->error |= ch; | |
| 3586 state = sw_debug; | |
| 3587 break; | |
| 3588 | |
| 3589 case sw_debug: | |
| 3590 break; | |
| 3591 } | |
| 3592 } | |
| 3593 | |
| 3594 ctx->rest -= p - b->pos; | |
| 3595 ctx->frame_state = state; | |
| 3596 b->pos = p; | |
| 3597 | |
| 3598 if (ctx->rest > 0) { | |
| 3599 return NGX_AGAIN; | |
| 3600 } | |
| 3601 | |
| 3602 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3603 "grpc goaway: %ui, stream %ui", | |
| 3604 ctx->error, ctx->stream_id); | |
| 3605 | |
| 3606 ctx->state = ngx_http_grpc_st_start; | |
| 3607 | |
| 3608 return NGX_OK; | |
| 3609 } | |
| 3610 | |
| 3611 | |
| 3612 static ngx_int_t | |
| 3613 ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
| 3614 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
| 3615 { | |
| 3616 u_char ch, *p, *last; | |
| 3617 enum { | |
| 3618 sw_start = 0, | |
| 3619 sw_size_2, | |
| 3620 sw_size_3, | |
| 3621 sw_size_4 | |
| 3622 } state; | |
| 3623 | |
| 3624 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3625 last = b->last; | |
| 3626 | |
| 3627 } else { | |
| 3628 last = b->pos + ctx->rest; | |
| 3629 } | |
| 3630 | |
| 3631 state = ctx->frame_state; | |
| 3632 | |
| 3633 if (state == sw_start) { | |
| 3634 if (ctx->rest != 4) { | |
| 3635 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3636 "upstream sent window update frame " | |
| 3637 "with invalid length: %uz", | |
| 3638 ctx->rest); | |
| 3639 return NGX_ERROR; | |
| 3640 } | |
| 3641 } | |
| 3642 | |
| 3643 for (p = b->pos; p < last; p++) { | |
| 3644 ch = *p; | |
| 3645 | |
| 3646 #if 0 | |
| 3647 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3648 "grpc window update byte: %02Xd s:%d", ch, state); | |
| 3649 #endif | |
| 3650 | |
| 3651 switch (state) { | |
| 3652 | |
| 3653 case sw_start: | |
| 3654 ctx->window_update = (ch & 0x7f) << 24; | |
| 3655 state = sw_size_2; | |
| 3656 break; | |
| 3657 | |
| 3658 case sw_size_2: | |
| 3659 ctx->window_update |= ch << 16; | |
| 3660 state = sw_size_3; | |
| 3661 break; | |
| 3662 | |
| 3663 case sw_size_3: | |
| 3664 ctx->window_update |= ch << 8; | |
| 3665 state = sw_size_4; | |
| 3666 break; | |
| 3667 | |
| 3668 case sw_size_4: | |
| 3669 ctx->window_update |= ch; | |
| 3670 state = sw_start; | |
| 3671 break; | |
| 3672 } | |
| 3673 } | |
| 3674 | |
| 3675 ctx->rest -= p - b->pos; | |
| 3676 ctx->frame_state = state; | |
| 3677 b->pos = p; | |
| 3678 | |
| 3679 if (ctx->rest > 0) { | |
| 3680 return NGX_AGAIN; | |
| 3681 } | |
| 3682 | |
| 3683 ctx->state = ngx_http_grpc_st_start; | |
| 3684 | |
| 3685 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3686 "grpc window update: %ui", ctx->window_update); | |
| 3687 | |
| 3688 if (ctx->stream_id) { | |
| 3689 | |
| 3690 if (ctx->window_update > (size_t) NGX_HTTP_V2_MAX_WINDOW | |
| 3691 - ctx->send_window) | |
| 3692 { | |
| 3693 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3694 "upstream sent too large window update"); | |
| 3695 return NGX_ERROR; | |
| 3696 } | |
| 3697 | |
| 3698 ctx->send_window += ctx->window_update; | |
| 3699 | |
| 3700 } else { | |
| 3701 | |
| 3702 if (ctx->window_update > NGX_HTTP_V2_MAX_WINDOW | |
| 3703 - ctx->connection->send_window) | |
| 3704 { | |
| 3705 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3706 "upstream sent too large window update"); | |
| 3707 return NGX_ERROR; | |
| 3708 } | |
| 3709 | |
| 3710 ctx->connection->send_window += ctx->window_update; | |
| 3711 } | |
| 3712 | |
| 3713 return NGX_OK; | |
| 3714 } | |
| 3715 | |
| 3716 | |
| 3717 static ngx_int_t | |
| 3718 ngx_http_grpc_parse_settings(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3719 ngx_buf_t *b) | |
| 3720 { | |
| 3721 u_char ch, *p, *last; | |
| 3722 ssize_t window_update; | |
| 3723 enum { | |
| 3724 sw_start = 0, | |
| 3725 sw_id, | |
| 3726 sw_id_2, | |
| 3727 sw_value, | |
| 3728 sw_value_2, | |
| 3729 sw_value_3, | |
| 3730 sw_value_4 | |
| 3731 } state; | |
| 3732 | |
| 3733 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3734 last = b->last; | |
| 3735 | |
| 3736 } else { | |
| 3737 last = b->pos + ctx->rest; | |
| 3738 } | |
| 3739 | |
| 3740 state = ctx->frame_state; | |
| 3741 | |
| 3742 if (state == sw_start) { | |
| 3743 | |
| 3744 if (ctx->stream_id) { | |
| 3745 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3746 "upstream sent settings frame " | |
| 3747 "with non-zero stream id: %ui", | |
| 3748 ctx->stream_id); | |
| 3749 return NGX_ERROR; | |
| 3750 } | |
| 3751 | |
| 3752 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
| 3753 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3754 "grpc settings ack"); | |
| 3755 | |
| 3756 if (ctx->rest != 0) { | |
| 3757 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3758 "upstream sent settings frame " | |
| 3759 "with ack flag and non-zero length: %uz", | |
| 3760 ctx->rest); | |
| 3761 return NGX_ERROR; | |
| 3762 } | |
| 3763 | |
| 3764 ctx->state = ngx_http_grpc_st_start; | |
| 3765 | |
| 3766 return NGX_OK; | |
| 3767 } | |
| 3768 | |
| 3769 if (ctx->rest % 6 != 0) { | |
| 3770 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3771 "upstream sent settings frame " | |
| 3772 "with invalid length: %uz", | |
| 3773 ctx->rest); | |
| 3774 return NGX_ERROR; | |
| 3775 } | |
|
7379
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3776 |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3777 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
|
3778 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
|
3779 "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
|
3780 return NGX_ERROR; |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3781 } |
| 7233 | 3782 } |
| 3783 | |
| 3784 for (p = b->pos; p < last; p++) { | |
| 3785 ch = *p; | |
| 3786 | |
| 3787 #if 0 | |
| 3788 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3789 "grpc settings byte: %02Xd s:%d", ch, state); | |
| 3790 #endif | |
| 3791 | |
| 3792 switch (state) { | |
| 3793 | |
| 3794 case sw_start: | |
| 3795 case sw_id: | |
| 3796 ctx->setting_id = ch << 8; | |
| 3797 state = sw_id_2; | |
| 3798 break; | |
| 3799 | |
| 3800 case sw_id_2: | |
| 3801 ctx->setting_id |= ch; | |
| 3802 state = sw_value; | |
| 3803 break; | |
| 3804 | |
| 3805 case sw_value: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3806 ctx->setting_value = (ngx_uint_t) ch << 24; |
| 7233 | 3807 state = sw_value_2; |
| 3808 break; | |
| 3809 | |
| 3810 case sw_value_2: | |
| 3811 ctx->setting_value |= ch << 16; | |
| 3812 state = sw_value_3; | |
| 3813 break; | |
| 3814 | |
| 3815 case sw_value_3: | |
| 3816 ctx->setting_value |= ch << 8; | |
| 3817 state = sw_value_4; | |
| 3818 break; | |
| 3819 | |
| 3820 case sw_value_4: | |
| 3821 ctx->setting_value |= ch; | |
| 3822 state = sw_id; | |
| 3823 | |
| 3824 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3825 "grpc setting: %ui %ui", | |
| 3826 ctx->setting_id, ctx->setting_value); | |
| 3827 | |
| 3828 /* | |
| 3829 * The following settings are defined by the protocol: | |
| 3830 * | |
| 3831 * SETTINGS_HEADER_TABLE_SIZE, SETTINGS_ENABLE_PUSH, | |
| 3832 * SETTINGS_MAX_CONCURRENT_STREAMS, SETTINGS_INITIAL_WINDOW_SIZE, | |
| 3833 * SETTINGS_MAX_FRAME_SIZE, SETTINGS_MAX_HEADER_LIST_SIZE | |
| 3834 * | |
| 3835 * Only SETTINGS_INITIAL_WINDOW_SIZE seems to be needed in | |
| 3836 * a simple client. | |
| 3837 */ | |
| 3838 | |
| 3839 if (ctx->setting_id == 0x04) { | |
| 3840 /* SETTINGS_INITIAL_WINDOW_SIZE */ | |
| 3841 | |
| 3842 if (ctx->setting_value > NGX_HTTP_V2_MAX_WINDOW) { | |
| 3843 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3844 "upstream sent settings frame " | |
| 3845 "with too large initial window size: %ui", | |
| 3846 ctx->setting_value); | |
| 3847 return NGX_ERROR; | |
| 3848 } | |
| 3849 | |
| 3850 window_update = ctx->setting_value | |
| 3851 - ctx->connection->init_window; | |
| 3852 ctx->connection->init_window = ctx->setting_value; | |
| 3853 | |
| 3854 if (ctx->send_window > 0 | |
| 3855 && window_update > (ssize_t) NGX_HTTP_V2_MAX_WINDOW | |
| 3856 - ctx->send_window) | |
| 3857 { | |
| 3858 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3859 "upstream sent settings frame " | |
| 3860 "with too large initial window size: %ui", | |
| 3861 ctx->setting_value); | |
| 3862 return NGX_ERROR; | |
| 3863 } | |
| 3864 | |
| 3865 ctx->send_window += window_update; | |
| 3866 } | |
| 3867 | |
| 3868 break; | |
| 3869 } | |
| 3870 } | |
| 3871 | |
| 3872 ctx->rest -= p - b->pos; | |
| 3873 ctx->frame_state = state; | |
| 3874 b->pos = p; | |
| 3875 | |
| 3876 if (ctx->rest > 0) { | |
| 3877 return NGX_AGAIN; | |
| 3878 } | |
| 3879 | |
| 3880 ctx->state = ngx_http_grpc_st_start; | |
| 3881 | |
| 3882 return ngx_http_grpc_send_settings_ack(r, ctx); | |
| 3883 } | |
| 3884 | |
| 3885 | |
| 3886 static ngx_int_t | |
| 3887 ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
| 3888 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
| 3889 { | |
| 3890 u_char ch, *p, *last; | |
| 3891 enum { | |
| 3892 sw_start = 0, | |
| 3893 sw_data_2, | |
| 3894 sw_data_3, | |
| 3895 sw_data_4, | |
| 3896 sw_data_5, | |
| 3897 sw_data_6, | |
| 3898 sw_data_7, | |
| 3899 sw_data_8 | |
| 3900 } state; | |
| 3901 | |
| 3902 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3903 last = b->last; | |
| 3904 | |
| 3905 } else { | |
| 3906 last = b->pos + ctx->rest; | |
| 3907 } | |
| 3908 | |
| 3909 state = ctx->frame_state; | |
| 3910 | |
| 3911 if (state == sw_start) { | |
| 3912 | |
| 3913 if (ctx->stream_id) { | |
| 3914 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3915 "upstream sent ping frame " | |
| 3916 "with non-zero stream id: %ui", | |
| 3917 ctx->stream_id); | |
| 3918 return NGX_ERROR; | |
| 3919 } | |
| 3920 | |
| 3921 if (ctx->rest != 8) { | |
| 3922 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3923 "upstream sent ping frame " | |
| 3924 "with invalid length: %uz", | |
| 3925 ctx->rest); | |
| 3926 return NGX_ERROR; | |
| 3927 } | |
| 3928 | |
| 3929 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
| 3930 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3931 "upstream sent ping frame with ack flag"); | |
| 3932 return NGX_ERROR; | |
| 3933 } | |
|
7379
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3934 |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3935 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
|
3936 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
|
3937 "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
|
3938 return NGX_ERROR; |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3939 } |
| 7233 | 3940 } |
| 3941 | |
| 3942 for (p = b->pos; p < last; p++) { | |
| 3943 ch = *p; | |
| 3944 | |
| 3945 #if 0 | |
| 3946 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3947 "grpc ping byte: %02Xd s:%d", ch, state); | |
| 3948 #endif | |
| 3949 | |
| 3950 if (state < sw_data_8) { | |
| 3951 ctx->ping_data[state] = ch; | |
| 3952 state++; | |
| 3953 | |
| 3954 } else { | |
| 3955 ctx->ping_data[7] = ch; | |
| 3956 state = sw_start; | |
| 3957 | |
| 3958 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3959 "grpc ping"); | |
| 3960 } | |
| 3961 } | |
| 3962 | |
| 3963 ctx->rest -= p - b->pos; | |
| 3964 ctx->frame_state = state; | |
| 3965 b->pos = p; | |
| 3966 | |
| 3967 if (ctx->rest > 0) { | |
| 3968 return NGX_AGAIN; | |
| 3969 } | |
| 3970 | |
| 3971 ctx->state = ngx_http_grpc_st_start; | |
| 3972 | |
| 3973 return ngx_http_grpc_send_ping_ack(r, ctx); | |
| 3974 } | |
| 3975 | |
| 3976 | |
| 3977 static ngx_int_t | |
| 3978 ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 3979 { | |
| 3980 ngx_chain_t *cl, **ll; | |
| 3981 ngx_http_grpc_frame_t *f; | |
| 3982 | |
| 3983 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3984 "grpc send settings ack"); | |
| 3985 | |
| 3986 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 3987 ll = &cl->next; | |
| 3988 } | |
| 3989 | |
| 3990 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 3991 if (cl == NULL) { | |
| 3992 return NGX_ERROR; | |
| 3993 } | |
| 3994 | |
| 3995 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 3996 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 3997 | |
| 3998 f->length_0 = 0; | |
| 3999 f->length_1 = 0; | |
| 4000 f->length_2 = 0; | |
| 4001 f->type = NGX_HTTP_V2_SETTINGS_FRAME; | |
| 4002 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
| 4003 f->stream_id_0 = 0; | |
| 4004 f->stream_id_1 = 0; | |
| 4005 f->stream_id_2 = 0; | |
| 4006 f->stream_id_3 = 0; | |
| 4007 | |
| 4008 *ll = cl; | |
| 4009 | |
| 4010 return NGX_OK; | |
| 4011 } | |
| 4012 | |
| 4013 | |
| 4014 static ngx_int_t | |
| 4015 ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 4016 { | |
| 4017 ngx_chain_t *cl, **ll; | |
| 4018 ngx_http_grpc_frame_t *f; | |
| 4019 | |
| 4020 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4021 "grpc send ping ack"); | |
| 4022 | |
| 4023 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 4024 ll = &cl->next; | |
| 4025 } | |
| 4026 | |
| 4027 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 4028 if (cl == NULL) { | |
| 4029 return NGX_ERROR; | |
| 4030 } | |
| 4031 | |
| 4032 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 4033 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 4034 | |
| 4035 f->length_0 = 0; | |
| 4036 f->length_1 = 0; | |
| 4037 f->length_2 = 8; | |
| 4038 f->type = NGX_HTTP_V2_PING_FRAME; | |
| 4039 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
| 4040 f->stream_id_0 = 0; | |
| 4041 f->stream_id_1 = 0; | |
| 4042 f->stream_id_2 = 0; | |
| 4043 f->stream_id_3 = 0; | |
| 4044 | |
| 4045 cl->buf->last = ngx_copy(cl->buf->last, ctx->ping_data, 8); | |
| 4046 | |
| 4047 *ll = cl; | |
| 4048 | |
| 4049 return NGX_OK; | |
| 4050 } | |
| 4051 | |
| 4052 | |
| 4053 static ngx_int_t | |
| 4054 ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
| 4055 ngx_http_grpc_ctx_t *ctx) | |
| 4056 { | |
| 4057 size_t n; | |
| 4058 ngx_chain_t *cl, **ll; | |
| 4059 ngx_http_grpc_frame_t *f; | |
| 4060 | |
| 4061 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4062 "grpc send window update: %uz %uz", | |
| 4063 ctx->connection->recv_window, ctx->recv_window); | |
| 4064 | |
| 4065 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 4066 ll = &cl->next; | |
| 4067 } | |
| 4068 | |
| 4069 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 4070 if (cl == NULL) { | |
| 4071 return NGX_ERROR; | |
| 4072 } | |
| 4073 | |
| 4074 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 4075 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 4076 | |
| 4077 f->length_0 = 0; | |
| 4078 f->length_1 = 0; | |
| 4079 f->length_2 = 4; | |
| 4080 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
| 4081 f->flags = 0; | |
| 4082 f->stream_id_0 = 0; | |
| 4083 f->stream_id_1 = 0; | |
| 4084 f->stream_id_2 = 0; | |
| 4085 f->stream_id_3 = 0; | |
| 4086 | |
| 4087 n = NGX_HTTP_V2_MAX_WINDOW - ctx->connection->recv_window; | |
| 4088 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4089 | |
| 4090 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
| 4091 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
| 4092 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
| 4093 *cl->buf->last++ = (u_char) (n & 0xff); | |
| 4094 | |
| 4095 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 4096 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 4097 | |
| 4098 f->length_0 = 0; | |
| 4099 f->length_1 = 0; | |
| 4100 f->length_2 = 4; | |
| 4101 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
| 4102 f->flags = 0; | |
| 4103 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 4104 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 4105 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 4106 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 4107 | |
| 4108 n = NGX_HTTP_V2_MAX_WINDOW - ctx->recv_window; | |
| 4109 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4110 | |
| 4111 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
| 4112 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
| 4113 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
| 4114 *cl->buf->last++ = (u_char) (n & 0xff); | |
| 4115 | |
| 4116 *ll = cl; | |
| 4117 | |
| 4118 return NGX_OK; | |
| 4119 } | |
| 4120 | |
| 4121 | |
| 4122 static ngx_chain_t * | |
| 4123 ngx_http_grpc_get_buf(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 4124 { | |
|
7305
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gRPC: clearing buffers in ngx_http_grpc_get_buf().
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7271
diff
changeset
|
4125 u_char *start; |
| 7233 | 4126 ngx_buf_t *b; |
| 4127 ngx_chain_t *cl; | |
| 4128 | |
| 4129 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
| 4130 if (cl == NULL) { | |
| 4131 return NULL; | |
| 4132 } | |
| 4133 | |
| 4134 b = cl->buf; | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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diff
changeset
|
4135 start = b->start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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diff
changeset
|
4136 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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diff
changeset
|
4137 if (start == NULL) { |
| 7233 | 4138 |
| 4139 /* | |
| 4140 * each buffer is large enough to hold two window update | |
| 4141 * frames in a row | |
| 4142 */ | |
| 4143 | |
|
7305
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gRPC: clearing buffers in ngx_http_grpc_get_buf().
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7271
diff
changeset
|
4144 start = ngx_palloc(r->pool, 2 * sizeof(ngx_http_grpc_frame_t) + 8); |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
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diff
changeset
|
4145 if (start == NULL) { |
| 7233 | 4146 return NULL; |
| 4147 } | |
| 4148 | |
| 4149 } | |
| 4150 | |
|
7305
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diff
changeset
|
4151 ngx_memzero(b, sizeof(ngx_buf_t)); |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
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diff
changeset
|
4152 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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diff
changeset
|
4153 b->start = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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diff
changeset
|
4154 b->pos = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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diff
changeset
|
4155 b->last = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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diff
changeset
|
4156 b->end = start + 2 * sizeof(ngx_http_grpc_frame_t) + 8; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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7271
diff
changeset
|
4157 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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diff
changeset
|
4158 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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diff
changeset
|
4159 b->temporary = 1; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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diff
changeset
|
4160 b->flush = 1; |
|
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gRPC: clearing buffers in ngx_http_grpc_get_buf().
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diff
changeset
|
4161 |
| 7233 | 4162 return cl; |
| 4163 } | |
| 4164 | |
| 4165 | |
| 4166 static ngx_http_grpc_ctx_t * | |
| 4167 ngx_http_grpc_get_ctx(ngx_http_request_t *r) | |
| 4168 { | |
| 4169 ngx_http_grpc_ctx_t *ctx; | |
| 4170 ngx_http_upstream_t *u; | |
| 4171 | |
| 4172 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
| 4173 | |
| 4174 if (ctx->connection == NULL) { | |
| 4175 u = r->upstream; | |
| 4176 | |
| 4177 if (ngx_http_grpc_get_connection_data(r, ctx, &u->peer) != NGX_OK) { | |
| 4178 return NULL; | |
| 4179 } | |
| 4180 } | |
| 4181 | |
| 4182 return ctx; | |
| 4183 } | |
| 4184 | |
| 4185 | |
| 4186 static ngx_int_t | |
| 4187 ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
| 4188 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc) | |
| 4189 { | |
| 4190 ngx_connection_t *c; | |
| 4191 ngx_pool_cleanup_t *cln; | |
| 4192 | |
| 4193 c = pc->connection; | |
| 4194 | |
| 4195 if (pc->cached) { | |
| 4196 | |
| 4197 /* | |
| 4198 * for cached connections, connection data can be found | |
| 4199 * in the cleanup handler | |
| 4200 */ | |
| 4201 | |
| 4202 for (cln = c->pool->cleanup; cln; cln = cln->next) { | |
| 4203 if (cln->handler == ngx_http_grpc_cleanup) { | |
| 4204 ctx->connection = cln->data; | |
| 4205 break; | |
| 4206 } | |
| 4207 } | |
| 4208 | |
| 4209 if (ctx->connection == NULL) { | |
| 4210 ngx_log_error(NGX_LOG_ERR, c->log, 0, | |
| 4211 "no connection data found for " | |
| 4212 "keepalive http2 connection"); | |
| 4213 return NGX_ERROR; | |
| 4214 } | |
| 4215 | |
| 4216 ctx->send_window = ctx->connection->init_window; | |
| 4217 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4218 | |
| 4219 ctx->connection->last_stream_id += 2; | |
| 4220 ctx->id = ctx->connection->last_stream_id; | |
| 4221 | |
| 4222 return NGX_OK; | |
| 4223 } | |
| 4224 | |
| 4225 cln = ngx_pool_cleanup_add(c->pool, sizeof(ngx_http_grpc_conn_t)); | |
| 4226 if (cln == NULL) { | |
| 4227 return NGX_ERROR; | |
| 4228 } | |
| 4229 | |
| 4230 cln->handler = ngx_http_grpc_cleanup; | |
| 4231 ctx->connection = cln->data; | |
| 4232 | |
| 4233 ctx->connection->init_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4234 ctx->connection->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4235 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4236 | |
| 4237 ctx->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4238 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4239 | |
| 4240 ctx->id = 1; | |
| 4241 ctx->connection->last_stream_id = 1; | |
| 4242 | |
| 4243 return NGX_OK; | |
| 4244 } | |
| 4245 | |
| 4246 | |
| 4247 static void | |
| 4248 ngx_http_grpc_cleanup(void *data) | |
| 4249 { | |
| 4250 #if 0 | |
| 4251 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 4252 "grpc cleanup"); | |
| 4253 #endif | |
| 4254 return; | |
| 4255 } | |
| 4256 | |
| 4257 | |
| 4258 static void | |
| 4259 ngx_http_grpc_abort_request(ngx_http_request_t *r) | |
| 4260 { | |
| 4261 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4262 "abort grpc request"); | |
| 4263 return; | |
| 4264 } | |
| 4265 | |
| 4266 | |
| 4267 static void | |
| 4268 ngx_http_grpc_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
| 4269 { | |
| 4270 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4271 "finalize grpc request"); | |
| 4272 return; | |
| 4273 } | |
| 4274 | |
| 4275 | |
|
7234
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7233
diff
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|
4276 static ngx_int_t |
|
c693daca57f7
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diff
changeset
|
4277 ngx_http_grpc_internal_trailers_variable(ngx_http_request_t *r, |
|
c693daca57f7
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7233
diff
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|
4278 ngx_http_variable_value_t *v, uintptr_t data) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4279 { |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
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|
4280 ngx_table_elt_t *te; |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
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|
4281 |
|
c693daca57f7
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7233
diff
changeset
|
4282 te = r->headers_in.te; |
|
c693daca57f7
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7233
diff
changeset
|
4283 |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4284 if (te == NULL) { |
|
c693daca57f7
gRPC: special handling of the TE request header.
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7233
diff
changeset
|
4285 v->not_found = 1; |
|
c693daca57f7
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7233
diff
changeset
|
4286 return NGX_OK; |
|
c693daca57f7
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7233
diff
changeset
|
4287 } |
|
c693daca57f7
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diff
changeset
|
4288 |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4289 if (ngx_strlcasestrn(te->value.data, te->value.data + te->value.len, |
|
c693daca57f7
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7233
diff
changeset
|
4290 (u_char *) "trailers", 8 - 1) |
|
c693daca57f7
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7233
diff
changeset
|
4291 == NULL) |
|
c693daca57f7
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diff
changeset
|
4292 { |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4293 v->not_found = 1; |
|
c693daca57f7
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7233
diff
changeset
|
4294 return NGX_OK; |
|
c693daca57f7
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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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changeset
|
4297 v->valid = 1; |
|
c693daca57f7
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7233
diff
changeset
|
4298 v->no_cacheable = 0; |
|
c693daca57f7
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changeset
|
4299 v->not_found = 0; |
|
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 v->data = (u_char *) "trailers"; |
|
c693daca57f7
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7233
diff
changeset
|
4302 v->len = sizeof("trailers") - 1; |
|
c693daca57f7
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7233
diff
changeset
|
4303 |
|
c693daca57f7
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changeset
|
4304 return NGX_OK; |
|
c693daca57f7
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7233
diff
changeset
|
4305 } |
|
c693daca57f7
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7233
diff
changeset
|
4306 |
|
c693daca57f7
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diff
changeset
|
4307 |
|
c693daca57f7
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diff
changeset
|
4308 static ngx_int_t |
|
c693daca57f7
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7233
diff
changeset
|
4309 ngx_http_grpc_add_variables(ngx_conf_t *cf) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4310 { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4311 ngx_http_variable_t *var, *v; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4312 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4313 for (v = ngx_http_grpc_vars; v->name.len; v++) { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4314 var = ngx_http_add_variable(cf, &v->name, v->flags); |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4315 if (var == NULL) { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4316 return NGX_ERROR; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4317 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4318 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4319 var->get_handler = v->get_handler; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4320 var->data = v->data; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4321 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4322 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4323 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4324 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4325 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4326 |
| 7233 | 4327 static void * |
| 4328 ngx_http_grpc_create_loc_conf(ngx_conf_t *cf) | |
| 4329 { | |
| 4330 ngx_http_grpc_loc_conf_t *conf; | |
| 4331 | |
| 4332 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_grpc_loc_conf_t)); | |
| 4333 if (conf == NULL) { | |
| 4334 return NULL; | |
| 4335 } | |
| 4336 | |
| 4337 /* | |
| 4338 * set by ngx_pcalloc(): | |
| 4339 * | |
| 4340 * conf->upstream.ignore_headers = 0; | |
| 4341 * conf->upstream.next_upstream = 0; | |
| 4342 * conf->upstream.hide_headers_hash = { NULL, 0 }; | |
| 4343 * conf->upstream.ssl_name = NULL; | |
| 4344 * | |
| 4345 * conf->headers.lengths = NULL; | |
| 4346 * conf->headers.values = NULL; | |
| 4347 * conf->headers.hash = { NULL, 0 }; | |
| 4348 * conf->host = { 0, NULL }; | |
| 4349 * conf->host_set = 0; | |
| 4350 * conf->ssl = 0; | |
| 4351 * conf->ssl_protocols = 0; | |
| 4352 * conf->ssl_ciphers = { 0, NULL }; | |
| 4353 * conf->ssl_trusted_certificate = { 0, NULL }; | |
| 4354 * conf->ssl_crl = { 0, NULL }; | |
| 4355 * conf->ssl_certificate = { 0, NULL }; | |
| 4356 * conf->ssl_certificate_key = { 0, NULL }; | |
| 4357 */ | |
| 4358 | |
| 4359 conf->upstream.local = NGX_CONF_UNSET_PTR; | |
|
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4360 conf->upstream.socket_keepalive = NGX_CONF_UNSET; |
| 7233 | 4361 conf->upstream.next_upstream_tries = NGX_CONF_UNSET_UINT; |
| 4362 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; | |
| 4363 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
| 4364 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
| 4365 conf->upstream.next_upstream_timeout = NGX_CONF_UNSET_MSEC; | |
| 4366 | |
| 4367 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
| 4368 | |
| 4369 conf->upstream.hide_headers = NGX_CONF_UNSET_PTR; | |
| 4370 conf->upstream.pass_headers = NGX_CONF_UNSET_PTR; | |
| 4371 | |
| 4372 conf->upstream.intercept_errors = NGX_CONF_UNSET; | |
| 4373 | |
| 4374 #if (NGX_HTTP_SSL) | |
| 4375 conf->upstream.ssl_session_reuse = NGX_CONF_UNSET; | |
| 4376 conf->upstream.ssl_server_name = NGX_CONF_UNSET; | |
| 4377 conf->upstream.ssl_verify = NGX_CONF_UNSET; | |
| 4378 conf->ssl_verify_depth = NGX_CONF_UNSET_UINT; | |
| 4379 conf->ssl_passwords = NGX_CONF_UNSET_PTR; | |
|
8183
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4380 conf->ssl_conf_commands = NGX_CONF_UNSET_PTR; |
| 7233 | 4381 #endif |
| 4382 | |
| 4383 /* the hardcoded values */ | |
| 4384 conf->upstream.cyclic_temp_file = 0; | |
| 4385 conf->upstream.buffering = 0; | |
| 4386 conf->upstream.ignore_client_abort = 0; | |
| 4387 conf->upstream.send_lowat = 0; | |
| 4388 conf->upstream.bufs.num = 0; | |
| 4389 conf->upstream.busy_buffers_size = 0; | |
| 4390 conf->upstream.max_temp_file_size = 0; | |
| 4391 conf->upstream.temp_file_write_size = 0; | |
| 4392 conf->upstream.pass_request_headers = 1; | |
| 4393 conf->upstream.pass_request_body = 1; | |
| 4394 conf->upstream.force_ranges = 0; | |
| 4395 conf->upstream.pass_trailers = 1; | |
| 4396 conf->upstream.preserve_output = 1; | |
| 4397 | |
|
8181
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7983
diff
changeset
|
4398 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:
7983
diff
changeset
|
4399 |
| 7233 | 4400 ngx_str_set(&conf->upstream.module, "grpc"); |
| 4401 | |
| 4402 return conf; | |
| 4403 } | |
| 4404 | |
| 4405 | |
| 4406 static char * | |
| 4407 ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 4408 { | |
| 4409 ngx_http_grpc_loc_conf_t *prev = parent; | |
| 4410 ngx_http_grpc_loc_conf_t *conf = child; | |
| 4411 | |
| 4412 ngx_int_t rc; | |
| 4413 ngx_hash_init_t hash; | |
| 4414 ngx_http_core_loc_conf_t *clcf; | |
| 4415 | |
| 4416 ngx_conf_merge_ptr_value(conf->upstream.local, | |
| 4417 prev->upstream.local, NULL); | |
| 4418 | |
|
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4419 ngx_conf_merge_value(conf->upstream.socket_keepalive, |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4420 prev->upstream.socket_keepalive, 0); |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4421 |
| 7233 | 4422 ngx_conf_merge_uint_value(conf->upstream.next_upstream_tries, |
| 4423 prev->upstream.next_upstream_tries, 0); | |
| 4424 | |
| 4425 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, | |
| 4426 prev->upstream.connect_timeout, 60000); | |
| 4427 | |
| 4428 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
| 4429 prev->upstream.send_timeout, 60000); | |
| 4430 | |
| 4431 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
| 4432 prev->upstream.read_timeout, 60000); | |
| 4433 | |
| 4434 ngx_conf_merge_msec_value(conf->upstream.next_upstream_timeout, | |
| 4435 prev->upstream.next_upstream_timeout, 0); | |
| 4436 | |
| 4437 ngx_conf_merge_size_value(conf->upstream.buffer_size, | |
| 4438 prev->upstream.buffer_size, | |
| 4439 (size_t) ngx_pagesize); | |
| 4440 | |
| 4441 ngx_conf_merge_bitmask_value(conf->upstream.ignore_headers, | |
| 4442 prev->upstream.ignore_headers, | |
| 4443 NGX_CONF_BITMASK_SET); | |
| 4444 | |
| 4445 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
| 4446 prev->upstream.next_upstream, | |
| 4447 (NGX_CONF_BITMASK_SET | |
| 4448 |NGX_HTTP_UPSTREAM_FT_ERROR | |
| 4449 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
| 4450 | |
| 4451 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { | |
| 4452 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
| 4453 |NGX_HTTP_UPSTREAM_FT_OFF; | |
| 4454 } | |
| 4455 | |
| 4456 ngx_conf_merge_value(conf->upstream.intercept_errors, | |
| 4457 prev->upstream.intercept_errors, 0); | |
| 4458 | |
| 4459 #if (NGX_HTTP_SSL) | |
| 4460 | |
| 4461 ngx_conf_merge_value(conf->upstream.ssl_session_reuse, | |
| 4462 prev->upstream.ssl_session_reuse, 1); | |
| 4463 | |
| 4464 ngx_conf_merge_bitmask_value(conf->ssl_protocols, prev->ssl_protocols, | |
| 4465 (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1 | |
| 4466 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); | |
| 4467 | |
| 4468 ngx_conf_merge_str_value(conf->ssl_ciphers, prev->ssl_ciphers, | |
| 4469 "DEFAULT"); | |
| 4470 | |
| 4471 if (conf->upstream.ssl_name == NULL) { | |
| 4472 conf->upstream.ssl_name = prev->upstream.ssl_name; | |
| 4473 } | |
| 4474 | |
| 4475 ngx_conf_merge_value(conf->upstream.ssl_server_name, | |
| 4476 prev->upstream.ssl_server_name, 0); | |
| 4477 ngx_conf_merge_value(conf->upstream.ssl_verify, | |
| 4478 prev->upstream.ssl_verify, 0); | |
| 4479 ngx_conf_merge_uint_value(conf->ssl_verify_depth, | |
| 4480 prev->ssl_verify_depth, 1); | |
| 4481 ngx_conf_merge_str_value(conf->ssl_trusted_certificate, | |
| 4482 prev->ssl_trusted_certificate, ""); | |
| 4483 ngx_conf_merge_str_value(conf->ssl_crl, prev->ssl_crl, ""); | |
| 4484 | |
| 4485 ngx_conf_merge_str_value(conf->ssl_certificate, | |
| 4486 prev->ssl_certificate, ""); | |
| 4487 ngx_conf_merge_str_value(conf->ssl_certificate_key, | |
| 4488 prev->ssl_certificate_key, ""); | |
| 4489 ngx_conf_merge_ptr_value(conf->ssl_passwords, prev->ssl_passwords, NULL); | |
| 4490 | |
|
8183
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4491 ngx_conf_merge_ptr_value(conf->ssl_conf_commands, |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4492 prev->ssl_conf_commands, NULL); |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4493 |
| 7233 | 4494 if (conf->ssl && ngx_http_grpc_set_ssl(cf, conf) != NGX_OK) { |
| 4495 return NGX_CONF_ERROR; | |
| 4496 } | |
| 4497 | |
| 4498 #endif | |
| 4499 | |
| 4500 hash.max_size = 512; | |
| 4501 hash.bucket_size = ngx_align(64, ngx_cacheline_size); | |
| 4502 hash.name = "grpc_headers_hash"; | |
| 4503 | |
| 4504 if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream, | |
| 4505 &prev->upstream, ngx_http_grpc_hide_headers, &hash) | |
| 4506 != NGX_OK) | |
| 4507 { | |
| 4508 return NGX_CONF_ERROR; | |
| 4509 } | |
| 4510 | |
| 4511 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
| 4512 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4513 if (clcf->noname |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4514 && 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
|
4515 { |
| 7233 | 4516 conf->upstream.upstream = prev->upstream.upstream; |
| 4517 conf->host = prev->host; | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4518 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4519 conf->grpc_lengths = prev->grpc_lengths; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4520 conf->grpc_values = prev->grpc_values; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4521 |
| 7233 | 4522 #if (NGX_HTTP_SSL) |
| 4523 conf->upstream.ssl = prev->upstream.ssl; | |
| 4524 #endif | |
| 4525 } | |
| 4526 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4527 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
|
4528 && (conf->upstream.upstream || conf->grpc_lengths)) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4529 { |
| 7233 | 4530 clcf->handler = ngx_http_grpc_handler; |
| 4531 } | |
| 4532 | |
|
8181
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7983
diff
changeset
|
4533 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:
7983
diff
changeset
|
4534 |
|
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7983
diff
changeset
|
4535 if (conf->headers_source == prev->headers_source) { |
| 7233 | 4536 conf->headers = prev->headers; |
| 4537 conf->host_set = prev->host_set; | |
| 4538 } | |
| 4539 | |
| 4540 rc = ngx_http_grpc_init_headers(cf, conf, &conf->headers, | |
| 4541 ngx_http_grpc_headers); | |
| 4542 if (rc != NGX_OK) { | |
| 4543 return NGX_CONF_ERROR; | |
| 4544 } | |
| 4545 | |
| 4546 /* | |
| 4547 * special handling to preserve conf->headers in the "http" section | |
| 4548 * to inherit it to all servers | |
| 4549 */ | |
| 4550 | |
| 4551 if (prev->headers.hash.buckets == NULL | |
| 4552 && conf->headers_source == prev->headers_source) | |
| 4553 { | |
| 4554 prev->headers = conf->headers; | |
| 4555 prev->host_set = conf->host_set; | |
| 4556 } | |
| 4557 | |
| 4558 return NGX_CONF_OK; | |
| 4559 } | |
| 4560 | |
| 4561 | |
| 4562 static ngx_int_t | |
| 4563 ngx_http_grpc_init_headers(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *conf, | |
| 4564 ngx_http_grpc_headers_t *headers, ngx_keyval_t *default_headers) | |
| 4565 { | |
| 4566 u_char *p; | |
| 4567 size_t size; | |
| 4568 uintptr_t *code; | |
| 4569 ngx_uint_t i; | |
| 4570 ngx_array_t headers_names, headers_merged; | |
| 4571 ngx_keyval_t *src, *s, *h; | |
| 4572 ngx_hash_key_t *hk; | |
| 4573 ngx_hash_init_t hash; | |
| 4574 ngx_http_script_compile_t sc; | |
| 4575 ngx_http_script_copy_code_t *copy; | |
| 4576 | |
| 4577 if (headers->hash.buckets) { | |
| 4578 return NGX_OK; | |
| 4579 } | |
| 4580 | |
| 4581 if (ngx_array_init(&headers_names, cf->temp_pool, 4, sizeof(ngx_hash_key_t)) | |
| 4582 != NGX_OK) | |
| 4583 { | |
| 4584 return NGX_ERROR; | |
| 4585 } | |
| 4586 | |
| 4587 if (ngx_array_init(&headers_merged, cf->temp_pool, 4, sizeof(ngx_keyval_t)) | |
| 4588 != NGX_OK) | |
| 4589 { | |
| 4590 return NGX_ERROR; | |
| 4591 } | |
| 4592 | |
| 4593 headers->lengths = ngx_array_create(cf->pool, 64, 1); | |
| 4594 if (headers->lengths == NULL) { | |
| 4595 return NGX_ERROR; | |
| 4596 } | |
| 4597 | |
| 4598 headers->values = ngx_array_create(cf->pool, 512, 1); | |
| 4599 if (headers->values == NULL) { | |
| 4600 return NGX_ERROR; | |
| 4601 } | |
| 4602 | |
| 4603 if (conf->headers_source) { | |
| 4604 | |
| 4605 src = conf->headers_source->elts; | |
| 4606 for (i = 0; i < conf->headers_source->nelts; i++) { | |
| 4607 | |
| 4608 if (src[i].key.len == 4 | |
| 4609 && ngx_strncasecmp(src[i].key.data, (u_char *) "Host", 4) == 0) | |
| 4610 { | |
| 4611 conf->host_set = 1; | |
| 4612 } | |
| 4613 | |
| 4614 s = ngx_array_push(&headers_merged); | |
| 4615 if (s == NULL) { | |
| 4616 return NGX_ERROR; | |
| 4617 } | |
| 4618 | |
| 4619 *s = src[i]; | |
| 4620 } | |
| 4621 } | |
| 4622 | |
| 4623 h = default_headers; | |
| 4624 | |
| 4625 while (h->key.len) { | |
| 4626 | |
| 4627 src = headers_merged.elts; | |
| 4628 for (i = 0; i < headers_merged.nelts; i++) { | |
| 4629 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) { | |
| 4630 goto next; | |
| 4631 } | |
| 4632 } | |
| 4633 | |
| 4634 s = ngx_array_push(&headers_merged); | |
| 4635 if (s == NULL) { | |
| 4636 return NGX_ERROR; | |
| 4637 } | |
| 4638 | |
| 4639 *s = *h; | |
| 4640 | |
| 4641 next: | |
| 4642 | |
| 4643 h++; | |
| 4644 } | |
| 4645 | |
| 4646 | |
| 4647 src = headers_merged.elts; | |
| 4648 for (i = 0; i < headers_merged.nelts; i++) { | |
| 4649 | |
| 4650 hk = ngx_array_push(&headers_names); | |
| 4651 if (hk == NULL) { | |
| 4652 return NGX_ERROR; | |
| 4653 } | |
| 4654 | |
| 4655 hk->key = src[i].key; | |
| 4656 hk->key_hash = ngx_hash_key_lc(src[i].key.data, src[i].key.len); | |
| 4657 hk->value = (void *) 1; | |
| 4658 | |
| 4659 if (src[i].value.len == 0) { | |
| 4660 continue; | |
| 4661 } | |
| 4662 | |
| 4663 copy = ngx_array_push_n(headers->lengths, | |
| 4664 sizeof(ngx_http_script_copy_code_t)); | |
| 4665 if (copy == NULL) { | |
| 4666 return NGX_ERROR; | |
| 4667 } | |
| 4668 | |
|
7271
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
7249
diff
changeset
|
4669 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
|
4670 ngx_http_script_copy_len_code; |
| 7233 | 4671 copy->len = src[i].key.len; |
| 4672 | |
| 4673 size = (sizeof(ngx_http_script_copy_code_t) | |
| 4674 + src[i].key.len + sizeof(uintptr_t) - 1) | |
| 4675 & ~(sizeof(uintptr_t) - 1); | |
| 4676 | |
| 4677 copy = ngx_array_push_n(headers->values, size); | |
| 4678 if (copy == NULL) { | |
| 4679 return NGX_ERROR; | |
| 4680 } | |
| 4681 | |
| 4682 copy->code = ngx_http_script_copy_code; | |
| 4683 copy->len = src[i].key.len; | |
| 4684 | |
| 4685 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); | |
| 4686 ngx_memcpy(p, src[i].key.data, src[i].key.len); | |
| 4687 | |
| 4688 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
| 4689 | |
| 4690 sc.cf = cf; | |
| 4691 sc.source = &src[i].value; | |
| 4692 sc.flushes = &headers->flushes; | |
| 4693 sc.lengths = &headers->lengths; | |
| 4694 sc.values = &headers->values; | |
| 4695 | |
| 4696 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
| 4697 return NGX_ERROR; | |
| 4698 } | |
| 4699 | |
| 4700 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
| 4701 if (code == NULL) { | |
| 4702 return NGX_ERROR; | |
| 4703 } | |
| 4704 | |
| 4705 *code = (uintptr_t) NULL; | |
| 4706 | |
| 4707 code = ngx_array_push_n(headers->values, sizeof(uintptr_t)); | |
| 4708 if (code == NULL) { | |
| 4709 return NGX_ERROR; | |
| 4710 } | |
| 4711 | |
| 4712 *code = (uintptr_t) NULL; | |
| 4713 } | |
| 4714 | |
| 4715 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
| 4716 if (code == NULL) { | |
| 4717 return NGX_ERROR; | |
| 4718 } | |
| 4719 | |
| 4720 *code = (uintptr_t) NULL; | |
| 4721 | |
| 4722 | |
| 4723 hash.hash = &headers->hash; | |
| 4724 hash.key = ngx_hash_key_lc; | |
| 4725 hash.max_size = 512; | |
| 4726 hash.bucket_size = 64; | |
| 4727 hash.name = "grpc_headers_hash"; | |
| 4728 hash.pool = cf->pool; | |
| 4729 hash.temp_pool = NULL; | |
| 4730 | |
| 4731 return ngx_hash_init(&hash, headers_names.elts, headers_names.nelts); | |
| 4732 } | |
| 4733 | |
| 4734 | |
| 4735 static char * | |
| 4736 ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 4737 { | |
| 4738 ngx_http_grpc_loc_conf_t *glcf = conf; | |
| 4739 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4740 size_t add; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4741 ngx_str_t *value, *url; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4742 ngx_url_t u; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4743 ngx_uint_t n; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4744 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
|
4745 ngx_http_script_compile_t sc; |
|
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 if (glcf->upstream.upstream || glcf->grpc_lengths) { |
| 7233 | 4748 return "is duplicate"; |
| 4749 } | |
| 4750 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4751 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
|
4752 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4753 clcf->handler = ngx_http_grpc_handler; |
|
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 (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
|
4756 clcf->auto_redirect = 1; |
|
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 |
| 7233 | 4759 value = cf->args->elts; |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4760 |
| 7233 | 4761 url = &value[1]; |
| 4762 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4763 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
|
4764 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4765 if (n) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4766 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4767 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
|
4768 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4769 sc.cf = cf; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4770 sc.source = url; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4771 sc.lengths = &glcf->grpc_lengths; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4772 sc.values = &glcf->grpc_values; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4773 sc.variables = n; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4774 sc.complete_lengths = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4775 sc.complete_values = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4776 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4777 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
|
4778 return NGX_CONF_ERROR; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4779 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4780 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4781 #if (NGX_HTTP_SSL) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4782 glcf->ssl = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4783 #endif |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4784 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4785 return NGX_CONF_OK; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4786 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4787 |
| 7233 | 4788 if (ngx_strncasecmp(url->data, (u_char *) "grpc://", 7) == 0) { |
| 4789 add = 7; | |
| 4790 | |
| 4791 } else if (ngx_strncasecmp(url->data, (u_char *) "grpcs://", 8) == 0) { | |
| 4792 | |
| 4793 #if (NGX_HTTP_SSL) | |
| 4794 glcf->ssl = 1; | |
| 4795 | |
| 4796 add = 8; | |
| 4797 #else | |
| 4798 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 4799 "grpcs protocol requires SSL support"); | |
| 4800 return NGX_CONF_ERROR; | |
| 4801 #endif | |
| 4802 | |
| 4803 } else { | |
| 4804 add = 0; | |
| 4805 } | |
| 4806 | |
| 4807 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 4808 | |
| 4809 u.url.len = url->len - add; | |
| 4810 u.url.data = url->data + add; | |
| 4811 u.no_resolve = 1; | |
| 4812 | |
| 4813 glcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); | |
| 4814 if (glcf->upstream.upstream == NULL) { | |
| 4815 return NGX_CONF_ERROR; | |
| 4816 } | |
| 4817 | |
| 4818 if (u.family != AF_UNIX) { | |
| 4819 | |
| 4820 if (u.no_port) { | |
| 4821 glcf->host = u.host; | |
| 4822 | |
| 4823 } else { | |
| 4824 glcf->host.len = u.host.len + 1 + u.port_text.len; | |
| 4825 glcf->host.data = u.host.data; | |
| 4826 } | |
| 4827 | |
| 4828 } else { | |
| 4829 ngx_str_set(&glcf->host, "localhost"); | |
| 4830 } | |
| 4831 | |
| 4832 return NGX_CONF_OK; | |
| 4833 } | |
| 4834 | |
| 4835 | |
| 4836 #if (NGX_HTTP_SSL) | |
| 4837 | |
| 4838 static char * | |
| 4839 ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 4840 { | |
| 4841 ngx_http_grpc_loc_conf_t *glcf = conf; | |
| 4842 | |
| 4843 ngx_str_t *value; | |
| 4844 | |
| 4845 if (glcf->ssl_passwords != NGX_CONF_UNSET_PTR) { | |
| 4846 return "is duplicate"; | |
| 4847 } | |
| 4848 | |
| 4849 value = cf->args->elts; | |
| 4850 | |
| 4851 glcf->ssl_passwords = ngx_ssl_read_password_file(cf, &value[1]); | |
| 4852 | |
| 4853 if (glcf->ssl_passwords == NULL) { | |
| 4854 return NGX_CONF_ERROR; | |
| 4855 } | |
| 4856 | |
| 4857 return NGX_CONF_OK; | |
| 4858 } | |
| 4859 | |
| 4860 | |
|
8183
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4861 static char * |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4862 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:
8181
diff
changeset
|
4863 { |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4864 #ifndef SSL_CONF_FLAG_FILE |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4865 return "is not supported on this platform"; |
|
8336
7ce28b4cc57e
SSL: fixed build by Sun C with old OpenSSL versions.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8228
diff
changeset
|
4866 #else |
|
7ce28b4cc57e
SSL: fixed build by Sun C with old OpenSSL versions.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8228
diff
changeset
|
4867 return NGX_CONF_OK; |
|
8183
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4868 #endif |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4869 } |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4870 |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4871 |
| 7233 | 4872 static ngx_int_t |
| 4873 ngx_http_grpc_set_ssl(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *glcf) | |
| 4874 { | |
| 4875 ngx_pool_cleanup_t *cln; | |
| 4876 | |
| 4877 glcf->upstream.ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t)); | |
| 4878 if (glcf->upstream.ssl == NULL) { | |
| 4879 return NGX_ERROR; | |
| 4880 } | |
| 4881 | |
| 4882 glcf->upstream.ssl->log = cf->log; | |
| 4883 | |
| 4884 if (ngx_ssl_create(glcf->upstream.ssl, glcf->ssl_protocols, NULL) | |
| 4885 != NGX_OK) | |
| 4886 { | |
| 4887 return NGX_ERROR; | |
| 4888 } | |
| 4889 | |
| 4890 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
| 4891 if (cln == NULL) { | |
|
7473
8981dbb12254
SSL: fixed potential leak on memory allocation errors.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7379
diff
changeset
|
4892 ngx_ssl_cleanup_ctx(glcf->upstream.ssl); |
| 7233 | 4893 return NGX_ERROR; |
| 4894 } | |
| 4895 | |
| 4896 cln->handler = ngx_ssl_cleanup_ctx; | |
| 4897 cln->data = glcf->upstream.ssl; | |
| 4898 | |
| 4899 if (glcf->ssl_certificate.len) { | |
| 4900 | |
| 4901 if (glcf->ssl_certificate_key.len == 0) { | |
| 4902 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4903 "no \"grpc_ssl_certificate_key\" is defined " | |
| 4904 "for certificate \"%V\"", &glcf->ssl_certificate); | |
| 4905 return NGX_ERROR; | |
| 4906 } | |
| 4907 | |
| 4908 if (ngx_ssl_certificate(cf, glcf->upstream.ssl, &glcf->ssl_certificate, | |
| 4909 &glcf->ssl_certificate_key, glcf->ssl_passwords) | |
| 4910 != NGX_OK) | |
| 4911 { | |
| 4912 return NGX_ERROR; | |
| 4913 } | |
| 4914 } | |
| 4915 | |
| 4916 if (ngx_ssl_ciphers(cf, glcf->upstream.ssl, &glcf->ssl_ciphers, 0) | |
| 4917 != NGX_OK) | |
| 4918 { | |
| 4919 return NGX_ERROR; | |
| 4920 } | |
| 4921 | |
| 4922 if (glcf->upstream.ssl_verify) { | |
| 4923 if (glcf->ssl_trusted_certificate.len == 0) { | |
| 4924 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4925 "no grpc_ssl_trusted_certificate for grpc_ssl_verify"); | |
| 4926 return NGX_ERROR; | |
| 4927 } | |
| 4928 | |
| 4929 if (ngx_ssl_trusted_certificate(cf, glcf->upstream.ssl, | |
| 4930 &glcf->ssl_trusted_certificate, | |
| 4931 glcf->ssl_verify_depth) | |
| 4932 != NGX_OK) | |
| 4933 { | |
| 4934 return NGX_ERROR; | |
| 4935 } | |
| 4936 | |
| 4937 if (ngx_ssl_crl(cf, glcf->upstream.ssl, &glcf->ssl_crl) != NGX_OK) { | |
| 4938 return NGX_ERROR; | |
| 4939 } | |
| 4940 } | |
| 4941 | |
|
7320
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4942 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
|
4943 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
|
4944 != NGX_OK) |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4945 { |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4946 return NGX_ERROR; |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4947 } |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4948 |
| 7233 | 4949 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
| 4950 | |
| 4951 if (SSL_CTX_set_alpn_protos(glcf->upstream.ssl->ctx, | |
| 4952 (u_char *) "\x02h2", 3) | |
| 4953 != 0) | |
| 4954 { | |
| 4955 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4956 "SSL_CTX_set_alpn_protos() failed"); | |
| 4957 return NGX_ERROR; | |
| 4958 } | |
| 4959 | |
| 4960 #endif | |
| 4961 | |
|
8183
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4962 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:
8181
diff
changeset
|
4963 != NGX_OK) |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4964 { |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4965 return NGX_ERROR; |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4966 } |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
8181
diff
changeset
|
4967 |
| 7233 | 4968 return NGX_OK; |
| 4969 } | |
| 4970 | |
| 4971 #endif |