Mercurial > hg > nginx
annotate src/http/modules/ngx_http_grpc_module.c @ 7831:bdd4d89370a7
Changed complex value slots to use NGX_CONF_UNSET_PTR.
With this change, it is now possible to use ngx_conf_merge_ptr_value()
to merge complex values. This change follows much earlier changes in
ngx_conf_merge_ptr_value() and ngx_conf_set_str_array_slot()
in 1452:cd586e963db0 (0.6.10) and 1701:40d004d95d88 (0.6.22), and the
change in ngx_conf_set_keyval_slot() (7728:485dba3e2a01, 1.19.4).
To preserve compatibility with existing 3rd party modules, both NULL
and NGX_CONF_UNSET_PTR are accepted for now.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Thu, 06 May 2021 02:22:03 +0300 |
| parents | 6df9d7df2784 |
| children | 3ab8e1e2f0f7 |
| 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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Upstream: proxy_ssl_conf_command and friends.
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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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gRPC: limited allocations due to ping and settings frames.
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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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gRPC: generate error when response size is wrong.
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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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gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
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126 unsigned rst:1; |
| 7233 | 127 |
| 128 ngx_http_request_t *request; | |
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129 |
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130 ngx_str_t host; |
| 7233 | 131 } ngx_http_grpc_ctx_t; |
| 132 | |
| 133 | |
| 134 typedef struct { | |
| 135 u_char length_0; | |
| 136 u_char length_1; | |
| 137 u_char length_2; | |
| 138 u_char type; | |
| 139 u_char flags; | |
| 140 u_char stream_id_0; | |
| 141 u_char stream_id_1; | |
| 142 u_char stream_id_2; | |
| 143 u_char stream_id_3; | |
| 144 } ngx_http_grpc_frame_t; | |
| 145 | |
| 146 | |
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147 static ngx_int_t ngx_http_grpc_eval(ngx_http_request_t *r, |
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148 ngx_http_grpc_ctx_t *ctx, ngx_http_grpc_loc_conf_t *glcf); |
| 7233 | 149 static ngx_int_t ngx_http_grpc_create_request(ngx_http_request_t *r); |
| 150 static ngx_int_t ngx_http_grpc_reinit_request(ngx_http_request_t *r); | |
| 151 static ngx_int_t ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in); | |
| 152 static ngx_int_t ngx_http_grpc_process_header(ngx_http_request_t *r); | |
| 153 static ngx_int_t ngx_http_grpc_filter_init(void *data); | |
| 154 static ngx_int_t ngx_http_grpc_filter(void *data, ssize_t bytes); | |
| 155 | |
| 156 static ngx_int_t ngx_http_grpc_parse_frame(ngx_http_request_t *r, | |
| 157 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 158 static ngx_int_t ngx_http_grpc_parse_header(ngx_http_request_t *r, | |
| 159 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 160 static ngx_int_t ngx_http_grpc_parse_fragment(ngx_http_request_t *r, | |
| 161 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 162 static ngx_int_t ngx_http_grpc_validate_header_name(ngx_http_request_t *r, | |
| 163 ngx_str_t *s); | |
| 164 static ngx_int_t ngx_http_grpc_validate_header_value(ngx_http_request_t *r, | |
| 165 ngx_str_t *s); | |
| 166 static ngx_int_t ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, | |
| 167 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 168 static ngx_int_t ngx_http_grpc_parse_goaway(ngx_http_request_t *r, | |
| 169 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 170 static ngx_int_t ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
| 171 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 172 static ngx_int_t ngx_http_grpc_parse_settings(ngx_http_request_t *r, | |
| 173 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 174 static ngx_int_t ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
| 175 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 176 | |
| 177 static ngx_int_t ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, | |
| 178 ngx_http_grpc_ctx_t *ctx); | |
| 179 static ngx_int_t ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, | |
| 180 ngx_http_grpc_ctx_t *ctx); | |
| 181 static ngx_int_t ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
| 182 ngx_http_grpc_ctx_t *ctx); | |
| 183 | |
| 184 static ngx_chain_t *ngx_http_grpc_get_buf(ngx_http_request_t *r, | |
| 185 ngx_http_grpc_ctx_t *ctx); | |
| 186 static ngx_http_grpc_ctx_t *ngx_http_grpc_get_ctx(ngx_http_request_t *r); | |
| 187 static ngx_int_t ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
| 188 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc); | |
| 189 static void ngx_http_grpc_cleanup(void *data); | |
| 190 | |
| 191 static void ngx_http_grpc_abort_request(ngx_http_request_t *r); | |
| 192 static void ngx_http_grpc_finalize_request(ngx_http_request_t *r, | |
| 193 ngx_int_t rc); | |
| 194 | |
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195 static ngx_int_t ngx_http_grpc_internal_trailers_variable( |
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196 ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); |
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197 |
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198 static ngx_int_t ngx_http_grpc_add_variables(ngx_conf_t *cf); |
| 7233 | 199 static void *ngx_http_grpc_create_loc_conf(ngx_conf_t *cf); |
| 200 static char *ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, | |
| 201 void *parent, void *child); | |
| 202 static ngx_int_t ngx_http_grpc_init_headers(ngx_conf_t *cf, | |
| 203 ngx_http_grpc_loc_conf_t *conf, ngx_http_grpc_headers_t *headers, | |
| 204 ngx_keyval_t *default_headers); | |
| 205 | |
| 206 static char *ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 207 void *conf); | |
| 208 | |
| 209 #if (NGX_HTTP_SSL) | |
| 210 static char *ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, | |
| 211 ngx_command_t *cmd, void *conf); | |
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212 static char *ngx_http_grpc_ssl_conf_command_check(ngx_conf_t *cf, void *post, |
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213 void *data); |
| 7233 | 214 static ngx_int_t ngx_http_grpc_set_ssl(ngx_conf_t *cf, |
| 215 ngx_http_grpc_loc_conf_t *glcf); | |
| 216 #endif | |
| 217 | |
| 218 | |
| 219 static ngx_conf_bitmask_t ngx_http_grpc_next_upstream_masks[] = { | |
| 220 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, | |
| 221 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, | |
| 222 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, | |
| 223 { ngx_string("non_idempotent"), NGX_HTTP_UPSTREAM_FT_NON_IDEMPOTENT }, | |
| 224 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 }, | |
| 225 { ngx_string("http_502"), NGX_HTTP_UPSTREAM_FT_HTTP_502 }, | |
| 226 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 }, | |
| 227 { ngx_string("http_504"), NGX_HTTP_UPSTREAM_FT_HTTP_504 }, | |
| 228 { ngx_string("http_403"), NGX_HTTP_UPSTREAM_FT_HTTP_403 }, | |
| 229 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, | |
| 230 { ngx_string("http_429"), NGX_HTTP_UPSTREAM_FT_HTTP_429 }, | |
| 231 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, | |
| 232 { ngx_null_string, 0 } | |
| 233 }; | |
| 234 | |
| 235 | |
| 236 #if (NGX_HTTP_SSL) | |
| 237 | |
| 238 static ngx_conf_bitmask_t ngx_http_grpc_ssl_protocols[] = { | |
| 239 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
| 240 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
| 241 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
| 242 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, | |
| 243 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, | |
| 244 { ngx_string("TLSv1.3"), NGX_SSL_TLSv1_3 }, | |
| 245 { ngx_null_string, 0 } | |
| 246 }; | |
| 247 | |
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248 static ngx_conf_post_t ngx_http_grpc_ssl_conf_command_post = |
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249 { ngx_http_grpc_ssl_conf_command_check }; |
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250 |
| 7233 | 251 #endif |
| 252 | |
| 253 | |
| 254 static ngx_command_t ngx_http_grpc_commands[] = { | |
| 255 | |
| 256 { ngx_string("grpc_pass"), | |
| 257 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
| 258 ngx_http_grpc_pass, | |
| 259 NGX_HTTP_LOC_CONF_OFFSET, | |
| 260 0, | |
| 261 NULL }, | |
| 262 | |
| 263 { ngx_string("grpc_bind"), | |
| 264 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, | |
| 265 ngx_http_upstream_bind_set_slot, | |
| 266 NGX_HTTP_LOC_CONF_OFFSET, | |
| 267 offsetof(ngx_http_grpc_loc_conf_t, upstream.local), | |
| 268 NULL }, | |
| 269 | |
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270 { ngx_string("grpc_socket_keepalive"), |
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271 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
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272 ngx_conf_set_flag_slot, |
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273 NGX_HTTP_LOC_CONF_OFFSET, |
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274 offsetof(ngx_http_grpc_loc_conf_t, upstream.socket_keepalive), |
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275 NULL }, |
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276 |
| 7233 | 277 { ngx_string("grpc_connect_timeout"), |
| 278 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 279 ngx_conf_set_msec_slot, | |
| 280 NGX_HTTP_LOC_CONF_OFFSET, | |
| 281 offsetof(ngx_http_grpc_loc_conf_t, upstream.connect_timeout), | |
| 282 NULL }, | |
| 283 | |
| 284 { ngx_string("grpc_send_timeout"), | |
| 285 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 286 ngx_conf_set_msec_slot, | |
| 287 NGX_HTTP_LOC_CONF_OFFSET, | |
| 288 offsetof(ngx_http_grpc_loc_conf_t, upstream.send_timeout), | |
| 289 NULL }, | |
| 290 | |
| 291 { ngx_string("grpc_intercept_errors"), | |
| 292 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 293 ngx_conf_set_flag_slot, | |
| 294 NGX_HTTP_LOC_CONF_OFFSET, | |
| 295 offsetof(ngx_http_grpc_loc_conf_t, upstream.intercept_errors), | |
| 296 NULL }, | |
| 297 | |
| 298 { ngx_string("grpc_buffer_size"), | |
| 299 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 300 ngx_conf_set_size_slot, | |
| 301 NGX_HTTP_LOC_CONF_OFFSET, | |
| 302 offsetof(ngx_http_grpc_loc_conf_t, upstream.buffer_size), | |
| 303 NULL }, | |
| 304 | |
| 305 { ngx_string("grpc_read_timeout"), | |
| 306 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 307 ngx_conf_set_msec_slot, | |
| 308 NGX_HTTP_LOC_CONF_OFFSET, | |
| 309 offsetof(ngx_http_grpc_loc_conf_t, upstream.read_timeout), | |
| 310 NULL }, | |
| 311 | |
| 312 { ngx_string("grpc_next_upstream"), | |
| 313 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 314 ngx_conf_set_bitmask_slot, | |
| 315 NGX_HTTP_LOC_CONF_OFFSET, | |
| 316 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream), | |
| 317 &ngx_http_grpc_next_upstream_masks }, | |
| 318 | |
| 319 { ngx_string("grpc_next_upstream_tries"), | |
| 320 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 321 ngx_conf_set_num_slot, | |
| 322 NGX_HTTP_LOC_CONF_OFFSET, | |
| 323 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_tries), | |
| 324 NULL }, | |
| 325 | |
| 326 { ngx_string("grpc_next_upstream_timeout"), | |
| 327 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 328 ngx_conf_set_msec_slot, | |
| 329 NGX_HTTP_LOC_CONF_OFFSET, | |
| 330 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_timeout), | |
| 331 NULL }, | |
| 332 | |
| 333 { ngx_string("grpc_set_header"), | |
| 334 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
| 335 ngx_conf_set_keyval_slot, | |
| 336 NGX_HTTP_LOC_CONF_OFFSET, | |
| 337 offsetof(ngx_http_grpc_loc_conf_t, headers_source), | |
| 338 NULL }, | |
| 339 | |
| 340 { ngx_string("grpc_pass_header"), | |
| 341 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 342 ngx_conf_set_str_array_slot, | |
| 343 NGX_HTTP_LOC_CONF_OFFSET, | |
| 344 offsetof(ngx_http_grpc_loc_conf_t, upstream.pass_headers), | |
| 345 NULL }, | |
| 346 | |
| 347 { ngx_string("grpc_hide_header"), | |
| 348 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 349 ngx_conf_set_str_array_slot, | |
| 350 NGX_HTTP_LOC_CONF_OFFSET, | |
| 351 offsetof(ngx_http_grpc_loc_conf_t, upstream.hide_headers), | |
| 352 NULL }, | |
| 353 | |
| 354 { ngx_string("grpc_ignore_headers"), | |
| 355 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 356 ngx_conf_set_bitmask_slot, | |
| 357 NGX_HTTP_LOC_CONF_OFFSET, | |
| 358 offsetof(ngx_http_grpc_loc_conf_t, upstream.ignore_headers), | |
| 359 &ngx_http_upstream_ignore_headers_masks }, | |
| 360 | |
| 361 #if (NGX_HTTP_SSL) | |
| 362 | |
| 363 { ngx_string("grpc_ssl_session_reuse"), | |
| 364 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 365 ngx_conf_set_flag_slot, | |
| 366 NGX_HTTP_LOC_CONF_OFFSET, | |
| 367 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_session_reuse), | |
| 368 NULL }, | |
| 369 | |
| 370 { ngx_string("grpc_ssl_protocols"), | |
| 371 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 372 ngx_conf_set_bitmask_slot, | |
| 373 NGX_HTTP_LOC_CONF_OFFSET, | |
| 374 offsetof(ngx_http_grpc_loc_conf_t, ssl_protocols), | |
| 375 &ngx_http_grpc_ssl_protocols }, | |
| 376 | |
| 377 { ngx_string("grpc_ssl_ciphers"), | |
| 378 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 379 ngx_conf_set_str_slot, | |
| 380 NGX_HTTP_LOC_CONF_OFFSET, | |
| 381 offsetof(ngx_http_grpc_loc_conf_t, ssl_ciphers), | |
| 382 NULL }, | |
| 383 | |
| 384 { ngx_string("grpc_ssl_name"), | |
| 385 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 386 ngx_http_set_complex_value_slot, | |
| 387 NGX_HTTP_LOC_CONF_OFFSET, | |
| 388 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_name), | |
| 389 NULL }, | |
| 390 | |
| 391 { ngx_string("grpc_ssl_server_name"), | |
| 392 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 393 ngx_conf_set_flag_slot, | |
| 394 NGX_HTTP_LOC_CONF_OFFSET, | |
| 395 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_server_name), | |
| 396 NULL }, | |
| 397 | |
| 398 { ngx_string("grpc_ssl_verify"), | |
| 399 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 400 ngx_conf_set_flag_slot, | |
| 401 NGX_HTTP_LOC_CONF_OFFSET, | |
| 402 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_verify), | |
| 403 NULL }, | |
| 404 | |
| 405 { ngx_string("grpc_ssl_verify_depth"), | |
| 406 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 407 ngx_conf_set_num_slot, | |
| 408 NGX_HTTP_LOC_CONF_OFFSET, | |
| 409 offsetof(ngx_http_grpc_loc_conf_t, ssl_verify_depth), | |
| 410 NULL }, | |
| 411 | |
| 412 { ngx_string("grpc_ssl_trusted_certificate"), | |
| 413 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 414 ngx_conf_set_str_slot, | |
| 415 NGX_HTTP_LOC_CONF_OFFSET, | |
| 416 offsetof(ngx_http_grpc_loc_conf_t, ssl_trusted_certificate), | |
| 417 NULL }, | |
| 418 | |
| 419 { ngx_string("grpc_ssl_crl"), | |
| 420 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 421 ngx_conf_set_str_slot, | |
| 422 NGX_HTTP_LOC_CONF_OFFSET, | |
| 423 offsetof(ngx_http_grpc_loc_conf_t, ssl_crl), | |
| 424 NULL }, | |
| 425 | |
| 426 { ngx_string("grpc_ssl_certificate"), | |
| 427 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 428 ngx_conf_set_str_slot, | |
| 429 NGX_HTTP_LOC_CONF_OFFSET, | |
| 430 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate), | |
| 431 NULL }, | |
| 432 | |
| 433 { ngx_string("grpc_ssl_certificate_key"), | |
| 434 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 435 ngx_conf_set_str_slot, | |
| 436 NGX_HTTP_LOC_CONF_OFFSET, | |
| 437 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate_key), | |
| 438 NULL }, | |
| 439 | |
| 440 { ngx_string("grpc_ssl_password_file"), | |
| 441 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 442 ngx_http_grpc_ssl_password_file, | |
| 443 NGX_HTTP_LOC_CONF_OFFSET, | |
| 444 0, | |
| 445 NULL }, | |
| 446 | |
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447 { ngx_string("grpc_ssl_conf_command"), |
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448 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, |
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449 ngx_conf_set_keyval_slot, |
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450 NGX_HTTP_LOC_CONF_OFFSET, |
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451 offsetof(ngx_http_grpc_loc_conf_t, ssl_conf_commands), |
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452 &ngx_http_grpc_ssl_conf_command_post }, |
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453 |
| 7233 | 454 #endif |
| 455 | |
| 456 ngx_null_command | |
| 457 }; | |
| 458 | |
| 459 | |
| 460 static ngx_http_module_t ngx_http_grpc_module_ctx = { | |
|
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461 ngx_http_grpc_add_variables, /* preconfiguration */ |
| 7233 | 462 NULL, /* postconfiguration */ |
| 463 | |
| 464 NULL, /* create main configuration */ | |
| 465 NULL, /* init main configuration */ | |
| 466 | |
| 467 NULL, /* create server configuration */ | |
| 468 NULL, /* merge server configuration */ | |
| 469 | |
| 470 ngx_http_grpc_create_loc_conf, /* create location configuration */ | |
| 471 ngx_http_grpc_merge_loc_conf /* merge location configuration */ | |
| 472 }; | |
| 473 | |
| 474 | |
| 475 ngx_module_t ngx_http_grpc_module = { | |
| 476 NGX_MODULE_V1, | |
| 477 &ngx_http_grpc_module_ctx, /* module context */ | |
| 478 ngx_http_grpc_commands, /* module directives */ | |
| 479 NGX_HTTP_MODULE, /* module type */ | |
| 480 NULL, /* init master */ | |
| 481 NULL, /* init module */ | |
| 482 NULL, /* init process */ | |
| 483 NULL, /* init thread */ | |
| 484 NULL, /* exit thread */ | |
| 485 NULL, /* exit process */ | |
| 486 NULL, /* exit master */ | |
| 487 NGX_MODULE_V1_PADDING | |
| 488 }; | |
| 489 | |
| 490 | |
| 491 static u_char ngx_http_grpc_connection_start[] = | |
| 492 "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" /* connection preface */ | |
| 493 | |
| 494 "\x00\x00\x12\x04\x00\x00\x00\x00\x00" /* settings frame */ | |
| 495 "\x00\x01\x00\x00\x00\x00" /* header table size */ | |
| 496 "\x00\x02\x00\x00\x00\x00" /* disable push */ | |
| 497 "\x00\x04\x7f\xff\xff\xff" /* initial window */ | |
| 498 | |
| 499 "\x00\x00\x04\x08\x00\x00\x00\x00\x00" /* window update frame */ | |
| 500 "\x7f\xff\x00\x00"; | |
| 501 | |
| 502 | |
| 503 static ngx_keyval_t ngx_http_grpc_headers[] = { | |
| 504 { ngx_string("Content-Length"), ngx_string("$content_length") }, | |
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505 { ngx_string("TE"), ngx_string("$grpc_internal_trailers") }, |
| 7233 | 506 { ngx_string("Host"), ngx_string("") }, |
| 507 { ngx_string("Connection"), ngx_string("") }, | |
| 508 { ngx_string("Transfer-Encoding"), ngx_string("") }, | |
| 509 { ngx_string("Keep-Alive"), ngx_string("") }, | |
| 510 { ngx_string("Expect"), ngx_string("") }, | |
| 511 { ngx_string("Upgrade"), ngx_string("") }, | |
| 512 { ngx_null_string, ngx_null_string } | |
| 513 }; | |
| 514 | |
| 515 | |
| 516 static ngx_str_t ngx_http_grpc_hide_headers[] = { | |
| 517 ngx_string("Date"), | |
| 518 ngx_string("Server"), | |
| 519 ngx_string("X-Accel-Expires"), | |
| 520 ngx_string("X-Accel-Redirect"), | |
| 521 ngx_string("X-Accel-Limit-Rate"), | |
| 522 ngx_string("X-Accel-Buffering"), | |
| 523 ngx_string("X-Accel-Charset"), | |
| 524 ngx_null_string | |
| 525 }; | |
| 526 | |
| 527 | |
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528 static ngx_http_variable_t ngx_http_grpc_vars[] = { |
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529 |
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530 { ngx_string("grpc_internal_trailers"), NULL, |
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531 ngx_http_grpc_internal_trailers_variable, 0, |
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532 NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, |
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533 |
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534 ngx_http_null_variable |
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535 }; |
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536 |
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537 |
| 7233 | 538 static ngx_int_t |
| 539 ngx_http_grpc_handler(ngx_http_request_t *r) | |
| 540 { | |
| 541 ngx_int_t rc; | |
| 542 ngx_http_upstream_t *u; | |
| 543 ngx_http_grpc_ctx_t *ctx; | |
| 544 ngx_http_grpc_loc_conf_t *glcf; | |
| 545 | |
| 546 if (ngx_http_upstream_create(r) != NGX_OK) { | |
| 547 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 548 } | |
| 549 | |
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550 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_grpc_ctx_t)); |
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551 if (ctx == NULL) { |
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552 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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553 } |
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554 |
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555 ctx->request = r; |
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556 |
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557 ngx_http_set_ctx(r, ctx, ngx_http_grpc_module); |
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558 |
| 7233 | 559 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); |
| 560 | |
| 561 u = r->upstream; | |
| 562 | |
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563 if (glcf->grpc_lengths == NULL) { |
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564 ctx->host = glcf->host; |
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565 |
| 7233 | 566 #if (NGX_HTTP_SSL) |
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567 u->ssl = (glcf->upstream.ssl != NULL); |
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568 |
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569 if (u->ssl) { |
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570 ngx_str_set(&u->schema, "grpcs://"); |
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571 |
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572 } else { |
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573 ngx_str_set(&u->schema, "grpc://"); |
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574 } |
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575 #else |
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576 ngx_str_set(&u->schema, "grpc://"); |
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577 #endif |
| 7233 | 578 |
| 579 } else { | |
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580 if (ngx_http_grpc_eval(r, ctx, glcf) != NGX_OK) { |
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581 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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582 } |
| 7233 | 583 } |
| 584 | |
| 585 u->output.tag = (ngx_buf_tag_t) &ngx_http_grpc_module; | |
| 586 | |
| 587 u->conf = &glcf->upstream; | |
| 588 | |
| 589 u->create_request = ngx_http_grpc_create_request; | |
| 590 u->reinit_request = ngx_http_grpc_reinit_request; | |
| 591 u->process_header = ngx_http_grpc_process_header; | |
| 592 u->abort_request = ngx_http_grpc_abort_request; | |
| 593 u->finalize_request = ngx_http_grpc_finalize_request; | |
| 594 | |
| 595 u->input_filter_init = ngx_http_grpc_filter_init; | |
| 596 u->input_filter = ngx_http_grpc_filter; | |
| 597 u->input_filter_ctx = ctx; | |
| 598 | |
| 599 r->request_body_no_buffering = 1; | |
| 600 | |
| 601 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init); | |
| 602 | |
| 603 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { | |
| 604 return rc; | |
| 605 } | |
| 606 | |
| 607 return NGX_DONE; | |
| 608 } | |
| 609 | |
| 610 | |
| 611 static ngx_int_t | |
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612 ngx_http_grpc_eval(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, |
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613 ngx_http_grpc_loc_conf_t *glcf) |
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614 { |
|
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615 size_t add; |
|
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616 ngx_url_t url; |
|
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617 ngx_http_upstream_t *u; |
|
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618 |
|
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619 ngx_memzero(&url, sizeof(ngx_url_t)); |
|
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620 |
|
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621 if (ngx_http_script_run(r, &url.url, glcf->grpc_lengths->elts, 0, |
|
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622 glcf->grpc_values->elts) |
|
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623 == NULL) |
|
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624 { |
|
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625 return NGX_ERROR; |
|
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626 } |
|
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|
627 |
|
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628 if (url.url.len > 7 |
|
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629 && ngx_strncasecmp(url.url.data, (u_char *) "grpc://", 7) == 0) |
|
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630 { |
|
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631 add = 7; |
|
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632 |
|
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633 } else if (url.url.len > 8 |
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634 && ngx_strncasecmp(url.url.data, (u_char *) "grpcs://", 8) == 0) |
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635 { |
|
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636 |
|
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637 #if (NGX_HTTP_SSL) |
|
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638 add = 8; |
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639 r->upstream->ssl = 1; |
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640 #else |
|
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641 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
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642 "grpcs protocol requires SSL support"); |
|
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643 return NGX_ERROR; |
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644 #endif |
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645 |
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646 } else { |
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647 add = 0; |
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648 } |
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|
649 |
|
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650 u = r->upstream; |
|
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|
651 |
|
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652 if (add) { |
|
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653 u->schema.len = add; |
|
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654 u->schema.data = url.url.data; |
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655 |
|
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656 url.url.data += add; |
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657 url.url.len -= add; |
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658 |
|
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659 } else { |
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660 ngx_str_set(&u->schema, "grpc://"); |
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661 } |
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662 |
|
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663 url.no_resolve = 1; |
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664 |
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665 if (ngx_parse_url(r->pool, &url) != NGX_OK) { |
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666 if (url.err) { |
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667 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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668 "%s in upstream \"%V\"", url.err, &url.url); |
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669 } |
|
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670 |
|
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671 return NGX_ERROR; |
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672 } |
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|
673 |
|
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|
674 u->resolved = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_resolved_t)); |
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675 if (u->resolved == NULL) { |
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676 return NGX_ERROR; |
|
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677 } |
|
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|
678 |
|
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679 if (url.addrs) { |
|
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680 u->resolved->sockaddr = url.addrs[0].sockaddr; |
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681 u->resolved->socklen = url.addrs[0].socklen; |
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682 u->resolved->name = url.addrs[0].name; |
|
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683 u->resolved->naddrs = 1; |
|
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684 } |
|
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|
685 |
|
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|
686 u->resolved->host = url.host; |
|
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687 u->resolved->port = url.port; |
|
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688 u->resolved->no_port = url.no_port; |
|
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|
689 |
|
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690 if (url.family != AF_UNIX) { |
|
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|
691 |
|
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692 if (url.no_port) { |
|
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693 ctx->host = url.host; |
|
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|
694 |
|
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695 } else { |
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696 ctx->host.len = url.host.len + 1 + url.port_text.len; |
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697 ctx->host.data = url.host.data; |
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698 } |
|
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|
699 |
|
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|
700 } else { |
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701 ngx_str_set(&ctx->host, "localhost"); |
|
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702 } |
|
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|
703 |
|
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|
704 return NGX_OK; |
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705 } |
|
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|
706 |
|
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|
707 |
|
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|
708 static ngx_int_t |
| 7233 | 709 ngx_http_grpc_create_request(ngx_http_request_t *r) |
| 710 { | |
| 711 u_char *p, *tmp, *key_tmp, *val_tmp, *headers_frame; | |
| 712 size_t len, tmp_len, key_len, val_len, uri_len; | |
| 713 uintptr_t escape; | |
| 714 ngx_buf_t *b; | |
| 715 ngx_uint_t i, next; | |
| 716 ngx_chain_t *cl, *body; | |
| 717 ngx_list_part_t *part; | |
| 718 ngx_table_elt_t *header; | |
|
7619
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719 ngx_http_grpc_ctx_t *ctx; |
| 7233 | 720 ngx_http_upstream_t *u; |
| 721 ngx_http_grpc_frame_t *f; | |
| 722 ngx_http_script_code_pt code; | |
| 723 ngx_http_grpc_loc_conf_t *glcf; | |
| 724 ngx_http_script_engine_t e, le; | |
| 725 ngx_http_script_len_code_pt lcode; | |
| 726 | |
| 727 u = r->upstream; | |
| 728 | |
| 729 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); | |
| 730 | |
|
7619
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|
731 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); |
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732 |
| 7233 | 733 len = sizeof(ngx_http_grpc_connection_start) - 1 |
| 734 + sizeof(ngx_http_grpc_frame_t); /* headers frame */ | |
| 735 | |
| 736 /* :method header */ | |
| 737 | |
| 738 if (r->method == NGX_HTTP_GET || r->method == NGX_HTTP_POST) { | |
| 739 len += 1; | |
| 740 tmp_len = 0; | |
| 741 | |
| 742 } else { | |
| 743 len += 1 + NGX_HTTP_V2_INT_OCTETS + r->method_name.len; | |
| 744 tmp_len = r->method_name.len; | |
| 745 } | |
| 746 | |
| 747 /* :scheme header */ | |
| 748 | |
| 749 len += 1; | |
| 750 | |
| 751 /* :path header */ | |
| 752 | |
| 753 if (r->valid_unparsed_uri) { | |
| 754 escape = 0; | |
| 755 uri_len = r->unparsed_uri.len; | |
| 756 | |
| 757 } else { | |
| 758 escape = 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len, | |
| 759 NGX_ESCAPE_URI); | |
| 760 uri_len = r->uri.len + escape + sizeof("?") - 1 + r->args.len; | |
| 761 } | |
| 762 | |
| 763 len += 1 + NGX_HTTP_V2_INT_OCTETS + uri_len; | |
| 764 | |
| 765 if (tmp_len < uri_len) { | |
| 766 tmp_len = uri_len; | |
| 767 } | |
| 768 | |
| 769 /* :authority header */ | |
| 770 | |
| 771 if (!glcf->host_set) { | |
|
7619
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gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
772 len += 1 + NGX_HTTP_V2_INT_OCTETS + ctx->host.len; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
773 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
774 if (tmp_len < ctx->host.len) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
775 tmp_len = ctx->host.len; |
| 7233 | 776 } |
| 777 } | |
| 778 | |
| 779 /* other headers */ | |
| 780 | |
| 781 ngx_http_script_flush_no_cacheable_variables(r, glcf->headers.flushes); | |
| 782 ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); | |
| 783 | |
| 784 le.ip = glcf->headers.lengths->elts; | |
| 785 le.request = r; | |
| 786 le.flushed = 1; | |
| 787 | |
| 788 while (*(uintptr_t *) le.ip) { | |
| 789 | |
| 790 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 791 key_len = lcode(&le); | |
| 792 | |
| 793 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
| 794 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 795 } | |
| 796 le.ip += sizeof(uintptr_t); | |
| 797 | |
| 798 if (val_len == 0) { | |
| 799 continue; | |
| 800 } | |
| 801 | |
| 802 len += 1 + NGX_HTTP_V2_INT_OCTETS + key_len | |
| 803 + NGX_HTTP_V2_INT_OCTETS + val_len; | |
| 804 | |
| 805 if (tmp_len < key_len) { | |
| 806 tmp_len = key_len; | |
| 807 } | |
| 808 | |
| 809 if (tmp_len < val_len) { | |
| 810 tmp_len = val_len; | |
| 811 } | |
| 812 } | |
| 813 | |
| 814 if (glcf->upstream.pass_request_headers) { | |
| 815 part = &r->headers_in.headers.part; | |
| 816 header = part->elts; | |
| 817 | |
| 818 for (i = 0; /* void */; i++) { | |
| 819 | |
| 820 if (i >= part->nelts) { | |
| 821 if (part->next == NULL) { | |
| 822 break; | |
| 823 } | |
| 824 | |
| 825 part = part->next; | |
| 826 header = part->elts; | |
| 827 i = 0; | |
| 828 } | |
| 829 | |
| 830 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
| 831 header[i].lowcase_key, header[i].key.len)) | |
| 832 { | |
| 833 continue; | |
| 834 } | |
| 835 | |
| 836 len += 1 + NGX_HTTP_V2_INT_OCTETS + header[i].key.len | |
| 837 + NGX_HTTP_V2_INT_OCTETS + header[i].value.len; | |
| 838 | |
| 839 if (tmp_len < header[i].key.len) { | |
| 840 tmp_len = header[i].key.len; | |
| 841 } | |
| 842 | |
| 843 if (tmp_len < header[i].value.len) { | |
| 844 tmp_len = header[i].value.len; | |
| 845 } | |
| 846 } | |
| 847 } | |
| 848 | |
| 849 /* continuation frames */ | |
| 850 | |
| 851 len += sizeof(ngx_http_grpc_frame_t) | |
| 852 * (len / NGX_HTTP_V2_DEFAULT_FRAME_SIZE); | |
| 853 | |
| 854 | |
| 855 b = ngx_create_temp_buf(r->pool, len); | |
| 856 if (b == NULL) { | |
| 857 return NGX_ERROR; | |
| 858 } | |
| 859 | |
| 860 cl = ngx_alloc_chain_link(r->pool); | |
| 861 if (cl == NULL) { | |
| 862 return NGX_ERROR; | |
| 863 } | |
| 864 | |
| 865 cl->buf = b; | |
| 866 cl->next = NULL; | |
| 867 | |
| 868 tmp = ngx_palloc(r->pool, tmp_len * 3); | |
| 869 if (tmp == NULL) { | |
| 870 return NGX_ERROR; | |
| 871 } | |
| 872 | |
| 873 key_tmp = tmp + tmp_len; | |
| 874 val_tmp = tmp + 2 * tmp_len; | |
| 875 | |
| 876 /* connection preface */ | |
| 877 | |
| 878 b->last = ngx_copy(b->last, ngx_http_grpc_connection_start, | |
| 879 sizeof(ngx_http_grpc_connection_start) - 1); | |
| 880 | |
| 881 /* headers frame */ | |
| 882 | |
| 883 headers_frame = b->last; | |
| 884 | |
| 885 f = (ngx_http_grpc_frame_t *) b->last; | |
| 886 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 887 | |
| 888 f->length_0 = 0; | |
| 889 f->length_1 = 0; | |
| 890 f->length_2 = 0; | |
| 891 f->type = NGX_HTTP_V2_HEADERS_FRAME; | |
| 892 f->flags = 0; | |
| 893 f->stream_id_0 = 0; | |
| 894 f->stream_id_1 = 0; | |
| 895 f->stream_id_2 = 0; | |
| 896 f->stream_id_3 = 1; | |
| 897 | |
| 898 if (r->method == NGX_HTTP_GET) { | |
| 899 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_GET_INDEX); | |
| 900 | |
| 901 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 902 "grpc header: \":method: GET\""); | |
| 903 | |
| 904 } else if (r->method == NGX_HTTP_POST) { | |
| 905 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_POST_INDEX); | |
| 906 | |
| 907 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 908 "grpc header: \":method: POST\""); | |
| 909 | |
| 910 } else { | |
| 911 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_METHOD_INDEX); | |
| 912 b->last = ngx_http_v2_write_value(b->last, r->method_name.data, | |
| 913 r->method_name.len, tmp); | |
| 914 | |
| 915 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 916 "grpc header: \":method: %V\"", &r->method_name); | |
| 917 } | |
| 918 | |
| 919 #if (NGX_HTTP_SSL) | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
920 if (u->ssl) { |
| 7233 | 921 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTPS_INDEX); |
| 922 | |
| 923 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 924 "grpc header: \":scheme: https\""); | |
| 925 } else | |
| 926 #endif | |
| 927 { | |
| 928 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTP_INDEX); | |
| 929 | |
| 930 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 931 "grpc header: \":scheme: http\""); | |
| 932 } | |
| 933 | |
| 934 if (r->valid_unparsed_uri) { | |
| 935 | |
| 936 if (r->unparsed_uri.len == 1 && r->unparsed_uri.data[0] == '/') { | |
| 937 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_PATH_ROOT_INDEX); | |
| 938 | |
| 939 } else { | |
| 940 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 941 b->last = ngx_http_v2_write_value(b->last, r->unparsed_uri.data, | |
| 942 r->unparsed_uri.len, tmp); | |
| 943 } | |
| 944 | |
| 945 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 946 "grpc header: \":path: %V\"", &r->unparsed_uri); | |
| 947 | |
| 948 } else if (escape || r->args.len > 0) { | |
| 949 p = val_tmp; | |
| 950 | |
| 951 if (escape) { | |
| 952 p = (u_char *) ngx_escape_uri(p, r->uri.data, r->uri.len, | |
| 953 NGX_ESCAPE_URI); | |
| 954 | |
| 955 } else { | |
| 956 p = ngx_copy(p, r->uri.data, r->uri.len); | |
| 957 } | |
| 958 | |
| 959 if (r->args.len > 0) { | |
| 960 *p++ = '?'; | |
| 961 p = ngx_copy(p, r->args.data, r->args.len); | |
| 962 } | |
| 963 | |
| 964 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 965 b->last = ngx_http_v2_write_value(b->last, val_tmp, p - val_tmp, tmp); | |
| 966 | |
| 967 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 968 "grpc header: \":path: %*s\"", p - val_tmp, val_tmp); | |
| 969 | |
| 970 } else { | |
| 971 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 972 b->last = ngx_http_v2_write_value(b->last, r->uri.data, | |
| 973 r->uri.len, tmp); | |
| 974 | |
| 975 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 976 "grpc header: \":path: %V\"", &r->uri); | |
| 977 } | |
| 978 | |
| 979 if (!glcf->host_set) { | |
| 980 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_AUTHORITY_INDEX); | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
981 b->last = ngx_http_v2_write_value(b->last, ctx->host.data, |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
982 ctx->host.len, tmp); |
| 7233 | 983 |
| 984 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
985 "grpc header: \":authority: %V\"", &ctx->host); |
| 7233 | 986 } |
| 987 | |
| 988 ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); | |
| 989 | |
| 990 e.ip = glcf->headers.values->elts; | |
| 991 e.request = r; | |
| 992 e.flushed = 1; | |
| 993 | |
| 994 le.ip = glcf->headers.lengths->elts; | |
| 995 | |
| 996 while (*(uintptr_t *) le.ip) { | |
| 997 | |
| 998 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 999 key_len = lcode(&le); | |
| 1000 | |
| 1001 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
| 1002 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 1003 } | |
| 1004 le.ip += sizeof(uintptr_t); | |
| 1005 | |
| 1006 if (val_len == 0) { | |
| 1007 e.skip = 1; | |
| 1008 | |
| 1009 while (*(uintptr_t *) e.ip) { | |
| 1010 code = *(ngx_http_script_code_pt *) e.ip; | |
| 1011 code((ngx_http_script_engine_t *) &e); | |
| 1012 } | |
| 1013 e.ip += sizeof(uintptr_t); | |
| 1014 | |
| 1015 e.skip = 0; | |
| 1016 | |
| 1017 continue; | |
| 1018 } | |
| 1019 | |
| 1020 *b->last++ = 0; | |
| 1021 | |
| 1022 e.pos = key_tmp; | |
| 1023 | |
| 1024 code = *(ngx_http_script_code_pt *) e.ip; | |
| 1025 code((ngx_http_script_engine_t *) &e); | |
| 1026 | |
| 1027 b->last = ngx_http_v2_write_name(b->last, key_tmp, key_len, tmp); | |
| 1028 | |
| 1029 e.pos = val_tmp; | |
| 1030 | |
| 1031 while (*(uintptr_t *) e.ip) { | |
| 1032 code = *(ngx_http_script_code_pt *) e.ip; | |
| 1033 code((ngx_http_script_engine_t *) &e); | |
| 1034 } | |
| 1035 e.ip += sizeof(uintptr_t); | |
| 1036 | |
| 1037 b->last = ngx_http_v2_write_value(b->last, val_tmp, val_len, tmp); | |
| 1038 | |
| 1039 #if (NGX_DEBUG) | |
| 1040 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1041 ngx_strlow(key_tmp, key_tmp, key_len); | |
| 1042 | |
| 1043 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1044 "grpc header: \"%*s: %*s\"", | |
| 1045 key_len, key_tmp, val_len, val_tmp); | |
| 1046 } | |
| 1047 #endif | |
| 1048 } | |
| 1049 | |
| 1050 if (glcf->upstream.pass_request_headers) { | |
| 1051 part = &r->headers_in.headers.part; | |
| 1052 header = part->elts; | |
| 1053 | |
| 1054 for (i = 0; /* void */; i++) { | |
| 1055 | |
| 1056 if (i >= part->nelts) { | |
| 1057 if (part->next == NULL) { | |
| 1058 break; | |
| 1059 } | |
| 1060 | |
| 1061 part = part->next; | |
| 1062 header = part->elts; | |
| 1063 i = 0; | |
| 1064 } | |
| 1065 | |
| 1066 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
| 1067 header[i].lowcase_key, header[i].key.len)) | |
| 1068 { | |
| 1069 continue; | |
| 1070 } | |
| 1071 | |
| 1072 *b->last++ = 0; | |
| 1073 | |
| 1074 b->last = ngx_http_v2_write_name(b->last, header[i].key.data, | |
| 1075 header[i].key.len, tmp); | |
| 1076 | |
| 1077 b->last = ngx_http_v2_write_value(b->last, header[i].value.data, | |
| 1078 header[i].value.len, tmp); | |
| 1079 | |
| 1080 #if (NGX_DEBUG) | |
| 1081 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1082 ngx_strlow(tmp, header[i].key.data, header[i].key.len); | |
| 1083 | |
| 1084 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1085 "grpc header: \"%*s: %V\"", | |
| 1086 header[i].key.len, tmp, &header[i].value); | |
| 1087 } | |
| 1088 #endif | |
| 1089 } | |
| 1090 } | |
| 1091 | |
| 1092 /* update headers frame length */ | |
| 1093 | |
| 1094 len = b->last - headers_frame - sizeof(ngx_http_grpc_frame_t); | |
| 1095 | |
| 1096 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 1097 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1098 next = 1; | |
| 1099 | |
| 1100 } else { | |
| 1101 next = 0; | |
| 1102 } | |
| 1103 | |
| 1104 f = (ngx_http_grpc_frame_t *) headers_frame; | |
| 1105 | |
| 1106 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1107 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1108 f->length_2 = (u_char) (len & 0xff); | |
| 1109 | |
| 1110 /* create additional continuation frames */ | |
| 1111 | |
| 1112 p = headers_frame; | |
| 1113 | |
| 1114 while (next) { | |
| 1115 p += sizeof(ngx_http_grpc_frame_t) + NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1116 len = b->last - p; | |
| 1117 | |
| 1118 ngx_memmove(p + sizeof(ngx_http_grpc_frame_t), p, len); | |
| 1119 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1120 | |
| 1121 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 1122 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1123 next = 1; | |
| 1124 | |
| 1125 } else { | |
| 1126 next = 0; | |
| 1127 } | |
| 1128 | |
| 1129 f = (ngx_http_grpc_frame_t *) p; | |
| 1130 | |
| 1131 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1132 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1133 f->length_2 = (u_char) (len & 0xff); | |
| 1134 f->type = NGX_HTTP_V2_CONTINUATION_FRAME; | |
| 1135 f->flags = 0; | |
| 1136 f->stream_id_0 = 0; | |
| 1137 f->stream_id_1 = 0; | |
| 1138 f->stream_id_2 = 0; | |
| 1139 f->stream_id_3 = 1; | |
| 1140 } | |
| 1141 | |
| 1142 f->flags |= NGX_HTTP_V2_END_HEADERS_FLAG; | |
| 1143 | |
|
7736
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1144 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
|
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1145 "grpc header: %*xs%s, len: %uz", |
|
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1146 (size_t) ngx_min(b->last - b->pos, 256), b->pos, |
|
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1147 b->last - b->pos > 256 ? "..." : "", |
|
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1148 b->last - b->pos); |
| 7233 | 1149 |
| 1150 if (r->request_body_no_buffering) { | |
| 1151 | |
| 1152 u->request_bufs = cl; | |
| 1153 | |
| 1154 } else { | |
| 1155 | |
| 1156 body = u->request_bufs; | |
| 1157 u->request_bufs = cl; | |
| 1158 | |
| 1159 if (body == NULL) { | |
| 1160 f = (ngx_http_grpc_frame_t *) headers_frame; | |
| 1161 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1162 } | |
| 1163 | |
| 1164 while (body) { | |
| 1165 b = ngx_alloc_buf(r->pool); | |
| 1166 if (b == NULL) { | |
| 1167 return NGX_ERROR; | |
| 1168 } | |
| 1169 | |
| 1170 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t)); | |
| 1171 | |
| 1172 cl->next = ngx_alloc_chain_link(r->pool); | |
| 1173 if (cl->next == NULL) { | |
| 1174 return NGX_ERROR; | |
| 1175 } | |
| 1176 | |
| 1177 cl = cl->next; | |
| 1178 cl->buf = b; | |
| 1179 | |
| 1180 body = body->next; | |
| 1181 } | |
| 1182 | |
| 1183 b->last_buf = 1; | |
| 1184 } | |
| 1185 | |
| 1186 u->output.output_filter = ngx_http_grpc_body_output_filter; | |
| 1187 u->output.filter_ctx = r; | |
| 1188 | |
| 1189 b->flush = 1; | |
| 1190 cl->next = NULL; | |
| 1191 | |
| 1192 return NGX_OK; | |
| 1193 } | |
| 1194 | |
| 1195 | |
| 1196 static ngx_int_t | |
| 1197 ngx_http_grpc_reinit_request(ngx_http_request_t *r) | |
| 1198 { | |
| 1199 ngx_http_grpc_ctx_t *ctx; | |
| 1200 | |
| 1201 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
| 1202 | |
| 1203 if (ctx == NULL) { | |
| 1204 return NGX_OK; | |
| 1205 } | |
| 1206 | |
| 1207 ctx->state = 0; | |
| 1208 ctx->header_sent = 0; | |
| 1209 ctx->output_closed = 0; | |
|
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1210 ctx->output_blocked = 0; |
| 7233 | 1211 ctx->parsing_headers = 0; |
| 1212 ctx->end_stream = 0; | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1213 ctx->done = 0; |
| 7233 | 1214 ctx->status = 0; |
|
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
1215 ctx->rst = 0; |
| 7233 | 1216 ctx->connection = NULL; |
| 1217 | |
| 1218 return NGX_OK; | |
| 1219 } | |
| 1220 | |
| 1221 | |
| 1222 static ngx_int_t | |
| 1223 ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in) | |
| 1224 { | |
| 1225 ngx_http_request_t *r = data; | |
| 1226 | |
| 1227 off_t file_pos; | |
| 1228 u_char *p, *pos, *start; | |
| 1229 size_t len, limit; | |
| 1230 ngx_buf_t *b; | |
| 1231 ngx_int_t rc; | |
| 1232 ngx_uint_t next, last; | |
| 1233 ngx_chain_t *cl, *out, **ll; | |
|
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|
1234 ngx_http_upstream_t *u; |
| 7233 | 1235 ngx_http_grpc_ctx_t *ctx; |
| 1236 ngx_http_grpc_frame_t *f; | |
| 1237 | |
| 1238 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1239 "grpc output filter"); | |
| 1240 | |
| 1241 ctx = ngx_http_grpc_get_ctx(r); | |
| 1242 | |
| 1243 if (ctx == NULL) { | |
| 1244 return NGX_ERROR; | |
| 1245 } | |
| 1246 | |
| 1247 if (in) { | |
| 1248 if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) { | |
| 1249 return NGX_ERROR; | |
| 1250 } | |
| 1251 } | |
| 1252 | |
| 1253 out = NULL; | |
| 1254 ll = &out; | |
| 1255 | |
| 1256 if (!ctx->header_sent) { | |
| 1257 /* first buffer contains headers */ | |
| 1258 | |
| 1259 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1260 "grpc output header"); | |
| 1261 | |
| 1262 ctx->header_sent = 1; | |
| 1263 | |
| 1264 if (ctx->id != 1) { | |
| 1265 /* | |
| 1266 * keepalive connection: skip connection preface, | |
| 1267 * update stream identifiers | |
| 1268 */ | |
| 1269 | |
| 1270 b = ctx->in->buf; | |
| 1271 b->pos += sizeof(ngx_http_grpc_connection_start) - 1; | |
| 1272 | |
| 1273 p = b->pos; | |
| 1274 | |
| 1275 while (p < b->last) { | |
| 1276 f = (ngx_http_grpc_frame_t *) p; | |
| 1277 p += sizeof(ngx_http_grpc_frame_t); | |
| 1278 | |
| 1279 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1280 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1281 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1282 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1283 | |
| 1284 p += (f->length_0 << 16) + (f->length_1 << 8) + f->length_2; | |
| 1285 } | |
| 1286 } | |
| 1287 | |
| 1288 if (ctx->in->buf->last_buf) { | |
| 1289 ctx->output_closed = 1; | |
| 1290 } | |
| 1291 | |
| 1292 *ll = ctx->in; | |
| 1293 ll = &ctx->in->next; | |
| 1294 | |
| 1295 ctx->in = ctx->in->next; | |
| 1296 } | |
| 1297 | |
| 1298 if (ctx->out) { | |
| 1299 /* queued control frames */ | |
| 1300 | |
| 1301 *ll = ctx->out; | |
| 1302 | |
| 1303 for (cl = ctx->out, ll = &cl->next; cl; cl = cl->next) { | |
| 1304 ll = &cl->next; | |
| 1305 } | |
| 1306 | |
| 1307 ctx->out = NULL; | |
| 1308 } | |
| 1309 | |
| 1310 f = NULL; | |
| 1311 last = 0; | |
| 1312 | |
| 1313 limit = ngx_max(0, ctx->send_window); | |
| 1314 | |
| 1315 if (limit > ctx->connection->send_window) { | |
| 1316 limit = ctx->connection->send_window; | |
| 1317 } | |
| 1318 | |
| 1319 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1320 "grpc output limit: %uz w:%z:%uz", | |
| 1321 limit, ctx->send_window, ctx->connection->send_window); | |
| 1322 | |
| 1323 #if (NGX_SUPPRESS_WARN) | |
| 1324 file_pos = 0; | |
| 1325 pos = NULL; | |
| 1326 cl = NULL; | |
| 1327 #endif | |
| 1328 | |
| 1329 in = ctx->in; | |
| 1330 | |
| 1331 while (in && limit > 0) { | |
| 1332 | |
| 1333 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
| 1334 "grpc output in l:%d f:%d %p, pos %p, size: %z " | |
| 1335 "file: %O, size: %O", | |
| 1336 in->buf->last_buf, | |
| 1337 in->buf->in_file, | |
| 1338 in->buf->start, in->buf->pos, | |
| 1339 in->buf->last - in->buf->pos, | |
| 1340 in->buf->file_pos, | |
| 1341 in->buf->file_last - in->buf->file_pos); | |
| 1342 | |
| 1343 if (ngx_buf_special(in->buf)) { | |
| 1344 goto next; | |
| 1345 } | |
| 1346 | |
| 1347 if (in->buf->in_file) { | |
| 1348 file_pos = in->buf->file_pos; | |
| 1349 | |
| 1350 } else { | |
| 1351 pos = in->buf->pos; | |
| 1352 } | |
| 1353 | |
| 1354 next = 0; | |
| 1355 | |
| 1356 do { | |
| 1357 | |
| 1358 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 1359 if (cl == NULL) { | |
| 1360 return NGX_ERROR; | |
| 1361 } | |
| 1362 | |
| 1363 b = cl->buf; | |
| 1364 | |
| 1365 f = (ngx_http_grpc_frame_t *) b->last; | |
| 1366 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1367 | |
| 1368 *ll = cl; | |
| 1369 ll = &cl->next; | |
| 1370 | |
| 1371 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
| 1372 if (cl == NULL) { | |
| 1373 return NGX_ERROR; | |
| 1374 } | |
| 1375 | |
| 1376 b = cl->buf; | |
| 1377 start = b->start; | |
| 1378 | |
| 1379 ngx_memcpy(b, in->buf, sizeof(ngx_buf_t)); | |
| 1380 | |
| 1381 /* | |
| 1382 * restore b->start to preserve memory allocated in the buffer, | |
| 1383 * to reuse it later for headers and control frames | |
| 1384 */ | |
| 1385 | |
| 1386 b->start = start; | |
| 1387 | |
| 1388 if (in->buf->in_file) { | |
| 1389 b->file_pos = file_pos; | |
| 1390 file_pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
| 1391 | |
| 1392 if (file_pos >= in->buf->file_last) { | |
| 1393 file_pos = in->buf->file_last; | |
| 1394 next = 1; | |
| 1395 } | |
| 1396 | |
| 1397 b->file_last = file_pos; | |
| 1398 len = (ngx_uint_t) (file_pos - b->file_pos); | |
| 1399 | |
| 1400 } else { | |
| 1401 b->pos = pos; | |
| 1402 pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
| 1403 | |
| 1404 if (pos >= in->buf->last) { | |
| 1405 pos = in->buf->last; | |
| 1406 next = 1; | |
| 1407 } | |
| 1408 | |
| 1409 b->last = pos; | |
| 1410 len = (ngx_uint_t) (pos - b->pos); | |
| 1411 } | |
| 1412 | |
| 1413 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; | |
| 1414 b->shadow = in->buf; | |
| 1415 b->last_shadow = next; | |
| 1416 | |
| 1417 b->last_buf = 0; | |
| 1418 b->last_in_chain = 0; | |
| 1419 | |
| 1420 *ll = cl; | |
| 1421 ll = &cl->next; | |
| 1422 | |
| 1423 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1424 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1425 f->length_2 = (u_char) (len & 0xff); | |
| 1426 f->type = NGX_HTTP_V2_DATA_FRAME; | |
| 1427 f->flags = 0; | |
| 1428 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1429 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1430 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1431 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1432 | |
| 1433 limit -= len; | |
| 1434 ctx->send_window -= len; | |
| 1435 ctx->connection->send_window -= len; | |
| 1436 | |
| 1437 } while (!next && limit > 0); | |
| 1438 | |
| 1439 if (!next) { | |
| 1440 /* | |
| 1441 * if the buffer wasn't fully sent due to flow control limits, | |
| 1442 * preserve position for future use | |
| 1443 */ | |
| 1444 | |
| 1445 if (in->buf->in_file) { | |
| 1446 in->buf->file_pos = file_pos; | |
| 1447 | |
| 1448 } else { | |
| 1449 in->buf->pos = pos; | |
| 1450 } | |
| 1451 | |
| 1452 break; | |
| 1453 } | |
| 1454 | |
| 1455 next: | |
| 1456 | |
| 1457 if (in->buf->last_buf) { | |
| 1458 last = 1; | |
| 1459 } | |
| 1460 | |
| 1461 in = in->next; | |
| 1462 } | |
| 1463 | |
| 1464 ctx->in = in; | |
| 1465 | |
| 1466 if (last) { | |
| 1467 | |
| 1468 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1469 "grpc output last"); | |
| 1470 | |
| 1471 ctx->output_closed = 1; | |
| 1472 | |
| 1473 if (f) { | |
| 1474 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1475 | |
| 1476 } else { | |
| 1477 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 1478 if (cl == NULL) { | |
| 1479 return NGX_ERROR; | |
| 1480 } | |
| 1481 | |
| 1482 b = cl->buf; | |
| 1483 | |
| 1484 f = (ngx_http_grpc_frame_t *) b->last; | |
| 1485 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1486 | |
| 1487 f->length_0 = 0; | |
| 1488 f->length_1 = 0; | |
| 1489 f->length_2 = 0; | |
| 1490 f->type = NGX_HTTP_V2_DATA_FRAME; | |
| 1491 f->flags = NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1492 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1493 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1494 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1495 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1496 | |
| 1497 *ll = cl; | |
| 1498 ll = &cl->next; | |
| 1499 } | |
| 1500 | |
| 1501 cl->buf->last_buf = 1; | |
| 1502 } | |
| 1503 | |
| 1504 *ll = NULL; | |
| 1505 | |
| 1506 #if (NGX_DEBUG) | |
| 1507 | |
| 1508 for (cl = out; cl; cl = cl->next) { | |
| 1509 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
| 1510 "grpc output out l:%d f:%d %p, pos %p, size: %z " | |
| 1511 "file: %O, size: %O", | |
| 1512 cl->buf->last_buf, | |
| 1513 cl->buf->in_file, | |
| 1514 cl->buf->start, cl->buf->pos, | |
| 1515 cl->buf->last - cl->buf->pos, | |
| 1516 cl->buf->file_pos, | |
| 1517 cl->buf->file_last - cl->buf->file_pos); | |
| 1518 } | |
| 1519 | |
| 1520 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1521 "grpc output limit: %uz w:%z:%uz", | |
| 1522 limit, ctx->send_window, ctx->connection->send_window); | |
| 1523 | |
| 1524 #endif | |
| 1525 | |
| 1526 rc = ngx_chain_writer(&r->upstream->writer, out); | |
| 1527 | |
| 1528 ngx_chain_update_chains(r->pool, &ctx->free, &ctx->busy, &out, | |
| 1529 (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter); | |
| 1530 | |
| 1531 for (cl = ctx->free; cl; cl = cl->next) { | |
| 1532 | |
| 1533 /* mark original buffers as sent */ | |
| 1534 | |
| 1535 if (cl->buf->shadow) { | |
| 1536 if (cl->buf->last_shadow) { | |
| 1537 b = cl->buf->shadow; | |
| 1538 b->pos = b->last; | |
| 1539 } | |
| 1540 | |
| 1541 cl->buf->shadow = NULL; | |
| 1542 } | |
| 1543 } | |
| 1544 | |
| 1545 if (rc == NGX_OK && ctx->in) { | |
| 1546 rc = NGX_AGAIN; | |
| 1547 } | |
| 1548 | |
|
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parents:
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diff
changeset
|
1549 if (rc == NGX_AGAIN) { |
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parents:
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diff
changeset
|
1550 ctx->output_blocked = 1; |
|
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parents:
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diff
changeset
|
1551 |
|
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parents:
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diff
changeset
|
1552 } else { |
|
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parents:
7349
diff
changeset
|
1553 ctx->output_blocked = 0; |
|
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parents:
7349
diff
changeset
|
1554 } |
|
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parents:
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diff
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|
1555 |
|
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parents:
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|
1556 if (ctx->done) { |
|
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parents:
7321
diff
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|
1557 |
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parents:
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changeset
|
1558 /* |
|
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parents:
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|
1559 * We have already got the response and were sending some additional |
|
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parents:
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diff
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|
1560 * control frames. Even if there is still something unsent, stop |
|
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parents:
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diff
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|
1561 * here anyway. |
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|
1562 */ |
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parents:
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|
1563 |
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parents:
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|
1564 u = r->upstream; |
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parents:
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diff
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1565 u->length = 0; |
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|
1566 |
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parents:
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|
1567 if (ctx->in == NULL |
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parents:
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|
1568 && ctx->out == NULL |
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parents:
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|
1569 && ctx->output_closed |
|
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
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|
1570 && !ctx->output_blocked |
|
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|
1571 && ctx->state == ngx_http_grpc_st_start) |
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1572 { |
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parents:
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|
1573 u->keepalive = 1; |
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parents:
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|
1574 } |
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parents:
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|
1575 |
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parents:
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|
1576 ngx_post_event(u->peer.connection->read, &ngx_posted_events); |
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parents:
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|
1577 } |
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|
1578 |
| 7233 | 1579 return rc; |
| 1580 } | |
| 1581 | |
| 1582 | |
| 1583 static ngx_int_t | |
| 1584 ngx_http_grpc_process_header(ngx_http_request_t *r) | |
| 1585 { | |
| 1586 ngx_str_t *status_line; | |
| 1587 ngx_int_t rc, status; | |
| 1588 ngx_buf_t *b; | |
| 1589 ngx_table_elt_t *h; | |
| 1590 ngx_http_upstream_t *u; | |
| 1591 ngx_http_grpc_ctx_t *ctx; | |
| 1592 ngx_http_upstream_header_t *hh; | |
| 1593 ngx_http_upstream_main_conf_t *umcf; | |
| 1594 | |
| 1595 u = r->upstream; | |
| 1596 b = &u->buffer; | |
| 1597 | |
|
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Vladimir Homutov <vl@nginx.com>
parents:
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|
1598 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
|
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Vladimir Homutov <vl@nginx.com>
parents:
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diff
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|
1599 "grpc response: %*xs%s, len: %uz", |
|
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parents:
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changeset
|
1600 (size_t) ngx_min(b->last - b->pos, 256), |
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parents:
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|
1601 b->pos, b->last - b->pos > 256 ? "..." : "", |
|
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Vladimir Homutov <vl@nginx.com>
parents:
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changeset
|
1602 b->last - b->pos); |
| 7233 | 1603 |
| 1604 ctx = ngx_http_grpc_get_ctx(r); | |
| 1605 | |
| 1606 if (ctx == NULL) { | |
| 1607 return NGX_ERROR; | |
| 1608 } | |
| 1609 | |
| 1610 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); | |
| 1611 | |
| 1612 for ( ;; ) { | |
| 1613 | |
| 1614 if (ctx->state < ngx_http_grpc_st_payload) { | |
| 1615 | |
| 1616 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
| 1617 | |
| 1618 if (rc == NGX_AGAIN) { | |
| 1619 | |
| 1620 /* | |
| 1621 * there can be a lot of window update frames, | |
| 1622 * so we reset buffer if it is empty and we haven't | |
| 1623 * started parsing headers yet | |
| 1624 */ | |
| 1625 | |
| 1626 if (!ctx->parsing_headers) { | |
| 1627 b->pos = b->start; | |
| 1628 b->last = b->pos; | |
| 1629 } | |
| 1630 | |
| 1631 return NGX_AGAIN; | |
| 1632 } | |
| 1633 | |
| 1634 if (rc == NGX_ERROR) { | |
| 1635 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1636 } | |
| 1637 | |
| 1638 /* | |
| 1639 * RFC 7540 says that implementations MUST discard frames | |
| 1640 * that have unknown or unsupported types. However, extension | |
| 1641 * frames that appear in the middle of a header block are | |
| 1642 * not permitted. Also, for obvious reasons CONTINUATION frames | |
| 1643 * cannot appear before headers, and DATA frames are not expected | |
| 1644 * to appear before all headers are parsed. | |
| 1645 */ | |
| 1646 | |
| 1647 if (ctx->type == NGX_HTTP_V2_DATA_FRAME | |
| 1648 || (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
| 1649 && !ctx->parsing_headers) | |
| 1650 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
| 1651 && ctx->parsing_headers)) | |
| 1652 { | |
| 1653 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1654 "upstream sent unexpected http2 frame: %d", | |
| 1655 ctx->type); | |
| 1656 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1657 } | |
| 1658 | |
| 1659 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
| 1660 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1661 "upstream sent frame for unknown stream %ui", | |
| 1662 ctx->stream_id); | |
| 1663 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1664 } | |
| 1665 } | |
| 1666 | |
| 1667 /* frame payload */ | |
| 1668 | |
| 1669 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
| 1670 | |
| 1671 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
| 1672 | |
| 1673 if (rc == NGX_AGAIN) { | |
| 1674 return NGX_AGAIN; | |
| 1675 } | |
| 1676 | |
| 1677 if (rc == NGX_ERROR) { | |
| 1678 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1679 } | |
| 1680 | |
| 1681 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1682 "upstream rejected request with error %ui", | |
| 1683 ctx->error); | |
| 1684 | |
| 1685 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1686 } | |
| 1687 | |
| 1688 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
| 1689 | |
| 1690 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
| 1691 | |
| 1692 if (rc == NGX_AGAIN) { | |
| 1693 return NGX_AGAIN; | |
| 1694 } | |
| 1695 | |
| 1696 if (rc == NGX_ERROR) { | |
| 1697 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1698 } | |
| 1699 | |
| 1700 /* | |
| 1701 * If stream_id is lower than one we use, our | |
| 1702 * request won't be processed and needs to be retried. | |
| 1703 * If stream_id is greater or equal to the one we use, | |
| 1704 * we can continue normally (except we can't use this | |
| 1705 * connection for additional requests). If there is | |
| 1706 * a real error, the connection will be closed. | |
| 1707 */ | |
| 1708 | |
| 1709 if (ctx->stream_id < ctx->id) { | |
| 1710 | |
| 1711 /* TODO: we can retry non-idempotent requests */ | |
| 1712 | |
| 1713 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1714 "upstream sent goaway with error %ui", | |
| 1715 ctx->error); | |
| 1716 | |
| 1717 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1718 } | |
| 1719 | |
| 1720 continue; | |
| 1721 } | |
| 1722 | |
| 1723 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
| 1724 | |
| 1725 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
| 1726 | |
| 1727 if (rc == NGX_AGAIN) { | |
| 1728 return NGX_AGAIN; | |
| 1729 } | |
| 1730 | |
| 1731 if (rc == NGX_ERROR) { | |
| 1732 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1733 } | |
| 1734 | |
| 1735 if (ctx->in) { | |
| 1736 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1737 } | |
| 1738 | |
| 1739 continue; | |
| 1740 } | |
| 1741 | |
| 1742 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
| 1743 | |
| 1744 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
| 1745 | |
| 1746 if (rc == NGX_AGAIN) { | |
| 1747 return NGX_AGAIN; | |
| 1748 } | |
| 1749 | |
| 1750 if (rc == NGX_ERROR) { | |
| 1751 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1752 } | |
| 1753 | |
| 1754 if (ctx->in) { | |
| 1755 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1756 } | |
| 1757 | |
| 1758 continue; | |
| 1759 } | |
| 1760 | |
| 1761 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
| 1762 | |
| 1763 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
| 1764 | |
| 1765 if (rc == NGX_AGAIN) { | |
| 1766 return NGX_AGAIN; | |
| 1767 } | |
| 1768 | |
| 1769 if (rc == NGX_ERROR) { | |
| 1770 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1771 } | |
| 1772 | |
| 1773 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1774 continue; | |
| 1775 } | |
| 1776 | |
| 1777 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
| 1778 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1779 "upstream sent unexpected push promise frame"); | |
| 1780 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1781 } | |
| 1782 | |
| 1783 if (ctx->type != NGX_HTTP_V2_HEADERS_FRAME | |
| 1784 && ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME) | |
| 1785 { | |
| 1786 /* priority, unknown frames */ | |
| 1787 | |
| 1788 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 1789 ctx->rest -= b->last - b->pos; | |
| 1790 b->pos = b->last; | |
| 1791 return NGX_AGAIN; | |
| 1792 } | |
| 1793 | |
| 1794 b->pos += ctx->rest; | |
| 1795 ctx->rest = 0; | |
| 1796 ctx->state = ngx_http_grpc_st_start; | |
| 1797 | |
| 1798 continue; | |
| 1799 } | |
| 1800 | |
| 1801 /* headers */ | |
| 1802 | |
| 1803 for ( ;; ) { | |
| 1804 | |
| 1805 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
| 1806 | |
| 1807 if (rc == NGX_AGAIN) { | |
| 1808 break; | |
| 1809 } | |
| 1810 | |
| 1811 if (rc == NGX_OK) { | |
| 1812 | |
| 1813 /* a header line has been parsed successfully */ | |
| 1814 | |
| 1815 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1816 "grpc header: \"%V: %V\"", | |
| 1817 &ctx->name, &ctx->value); | |
| 1818 | |
| 1819 if (ctx->name.len && ctx->name.data[0] == ':') { | |
| 1820 | |
| 1821 if (ctx->name.len != sizeof(":status") - 1 | |
| 1822 || ngx_strncmp(ctx->name.data, ":status", | |
| 1823 sizeof(":status") - 1) | |
| 1824 != 0) | |
| 1825 { | |
| 1826 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1827 "upstream sent invalid header \"%V: %V\"", | |
| 1828 &ctx->name, &ctx->value); | |
| 1829 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1830 } | |
| 1831 | |
| 1832 if (ctx->status) { | |
| 1833 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1834 "upstream sent duplicate :status header"); | |
| 1835 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1836 } | |
| 1837 | |
| 1838 status_line = &ctx->value; | |
| 1839 | |
| 1840 if (status_line->len != 3) { | |
| 1841 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1842 "upstream sent invalid :status \"%V\"", | |
| 1843 status_line); | |
| 1844 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1845 } | |
| 1846 | |
| 1847 status = ngx_atoi(status_line->data, 3); | |
| 1848 | |
| 1849 if (status == NGX_ERROR) { | |
| 1850 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1851 "upstream sent invalid :status \"%V\"", | |
| 1852 status_line); | |
| 1853 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1854 } | |
| 1855 | |
| 1856 if (status < NGX_HTTP_OK) { | |
| 1857 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1858 "upstream sent unexpected :status \"%V\"", | |
| 1859 status_line); | |
| 1860 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1861 } | |
| 1862 | |
| 1863 u->headers_in.status_n = status; | |
| 1864 | |
| 1865 if (u->state && u->state->status == 0) { | |
| 1866 u->state->status = status; | |
| 1867 } | |
| 1868 | |
| 1869 ctx->status = 1; | |
| 1870 | |
| 1871 continue; | |
| 1872 | |
| 1873 } else if (!ctx->status) { | |
| 1874 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1875 "upstream sent no :status header"); | |
| 1876 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1877 } | |
| 1878 | |
| 1879 h = ngx_list_push(&u->headers_in.headers); | |
| 1880 if (h == NULL) { | |
| 1881 return NGX_ERROR; | |
| 1882 } | |
| 1883 | |
| 1884 h->key = ctx->name; | |
| 1885 h->value = ctx->value; | |
| 1886 h->lowcase_key = h->key.data; | |
| 1887 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
| 1888 | |
| 1889 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash, | |
| 1890 h->lowcase_key, h->key.len); | |
| 1891 | |
| 1892 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) { | |
| 1893 return NGX_ERROR; | |
| 1894 } | |
| 1895 | |
| 1896 continue; | |
| 1897 } | |
| 1898 | |
| 1899 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
| 1900 | |
| 1901 /* a whole header has been parsed successfully */ | |
| 1902 | |
| 1903 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1904 "grpc header done"); | |
| 1905 | |
|
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1906 if (ctx->end_stream) { |
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1907 u->headers_in.content_length_n = 0; |
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1908 |
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1909 if (ctx->in == NULL |
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1910 && ctx->out == NULL |
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1911 && ctx->output_closed |
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1912 && !ctx->output_blocked |
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1913 && b->last == b->pos) |
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1914 { |
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1915 u->keepalive = 1; |
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1916 } |
| 7233 | 1917 } |
| 1918 | |
| 1919 return NGX_OK; | |
| 1920 } | |
| 1921 | |
| 1922 /* there was error while a header line parsing */ | |
| 1923 | |
| 1924 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1925 "upstream sent invalid header"); | |
| 1926 | |
| 1927 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1928 } | |
| 1929 | |
| 1930 /* rc == NGX_AGAIN */ | |
| 1931 | |
| 1932 if (ctx->rest == 0) { | |
| 1933 ctx->state = ngx_http_grpc_st_start; | |
| 1934 continue; | |
| 1935 } | |
| 1936 | |
| 1937 return NGX_AGAIN; | |
| 1938 } | |
| 1939 } | |
| 1940 | |
| 1941 | |
| 1942 static ngx_int_t | |
| 1943 ngx_http_grpc_filter_init(void *data) | |
| 1944 { | |
| 1945 ngx_http_grpc_ctx_t *ctx = data; | |
| 1946 | |
| 1947 ngx_http_request_t *r; | |
| 1948 ngx_http_upstream_t *u; | |
| 1949 | |
| 1950 r = ctx->request; | |
| 1951 u = r->upstream; | |
| 1952 | |
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1953 if (u->headers_in.status_n == NGX_HTTP_NO_CONTENT |
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1954 || u->headers_in.status_n == NGX_HTTP_NOT_MODIFIED |
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1955 || r->method == NGX_HTTP_HEAD) |
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1956 { |
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1957 ctx->length = 0; |
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1958 |
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1959 } else { |
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1960 ctx->length = u->headers_in.content_length_n; |
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1961 } |
| 7233 | 1962 |
| 1963 if (ctx->end_stream) { | |
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1964 |
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1965 if (ctx->length > 0) { |
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1966 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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1967 "upstream prematurely closed stream"); |
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1968 return NGX_ERROR; |
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1969 } |
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1970 |
| 7233 | 1971 u->length = 0; |
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1972 ctx->done = 1; |
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1973 |
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1974 } else { |
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1975 u->length = 1; |
| 7233 | 1976 } |
| 1977 | |
| 1978 return NGX_OK; | |
| 1979 } | |
| 1980 | |
| 1981 | |
| 1982 static ngx_int_t | |
| 1983 ngx_http_grpc_filter(void *data, ssize_t bytes) | |
| 1984 { | |
| 1985 ngx_http_grpc_ctx_t *ctx = data; | |
| 1986 | |
| 1987 ngx_int_t rc; | |
| 1988 ngx_buf_t *b, *buf; | |
| 1989 ngx_chain_t *cl, **ll; | |
| 1990 ngx_table_elt_t *h; | |
| 1991 ngx_http_request_t *r; | |
| 1992 ngx_http_upstream_t *u; | |
| 1993 | |
| 1994 r = ctx->request; | |
| 1995 u = r->upstream; | |
| 1996 b = &u->buffer; | |
| 1997 | |
| 1998 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1999 "grpc filter bytes:%z", bytes); | |
| 2000 | |
| 2001 b->pos = b->last; | |
| 2002 b->last += bytes; | |
| 2003 | |
| 2004 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
| 2005 ll = &cl->next; | |
| 2006 } | |
| 2007 | |
| 2008 for ( ;; ) { | |
| 2009 | |
| 2010 if (ctx->state < ngx_http_grpc_st_payload) { | |
| 2011 | |
| 2012 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
| 2013 | |
| 2014 if (rc == NGX_AGAIN) { | |
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2015 |
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2016 if (ctx->done) { |
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2017 |
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2018 if (ctx->length > 0) { |
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2019 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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2020 "upstream prematurely closed stream"); |
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2021 return NGX_ERROR; |
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2022 } |
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2023 |
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2024 /* |
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2025 * We have finished parsing the response and the |
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2026 * remaining control frames. If there are unsent |
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2027 * control frames, post a write event to send them. |
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2028 */ |
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2029 |
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2030 if (ctx->out) { |
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2031 ngx_post_event(u->peer.connection->write, |
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|
2032 &ngx_posted_events); |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2033 return NGX_AGAIN; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2034 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2035 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2036 u->length = 0; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2037 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2038 if (ctx->in == NULL |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2039 && ctx->output_closed |
|
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
2040 && !ctx->output_blocked |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2041 && ctx->state == ngx_http_grpc_st_start) |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2042 { |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2043 u->keepalive = 1; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2044 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2045 |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2046 break; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2047 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2048 |
| 7233 | 2049 return NGX_AGAIN; |
| 2050 } | |
| 2051 | |
| 2052 if (rc == NGX_ERROR) { | |
| 2053 return NGX_ERROR; | |
| 2054 } | |
| 2055 | |
| 2056 if ((ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
| 2057 && !ctx->parsing_headers) | |
| 2058 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
| 2059 && ctx->parsing_headers)) | |
| 2060 { | |
| 2061 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2062 "upstream sent unexpected http2 frame: %d", | |
| 2063 ctx->type); | |
| 2064 return NGX_ERROR; | |
| 2065 } | |
| 2066 | |
| 2067 if (ctx->type == NGX_HTTP_V2_DATA_FRAME) { | |
| 2068 | |
| 2069 if (ctx->stream_id != ctx->id) { | |
| 2070 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2071 "upstream sent data frame " | |
| 2072 "for unknown stream %ui", | |
| 2073 ctx->stream_id); | |
| 2074 return NGX_ERROR; | |
| 2075 } | |
| 2076 | |
| 2077 if (ctx->rest > ctx->recv_window) { | |
| 2078 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2079 "upstream violated stream flow control, " | |
| 2080 "received %uz data frame with window %uz", | |
| 2081 ctx->rest, ctx->recv_window); | |
| 2082 return NGX_ERROR; | |
| 2083 } | |
| 2084 | |
| 2085 if (ctx->rest > ctx->connection->recv_window) { | |
| 2086 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2087 "upstream violated connection flow control, " | |
| 2088 "received %uz data frame with window %uz", | |
| 2089 ctx->rest, ctx->connection->recv_window); | |
| 2090 return NGX_ERROR; | |
| 2091 } | |
| 2092 | |
| 2093 ctx->recv_window -= ctx->rest; | |
| 2094 ctx->connection->recv_window -= ctx->rest; | |
| 2095 | |
| 2096 if (ctx->connection->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4 | |
| 2097 || ctx->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4) | |
| 2098 { | |
| 2099 if (ngx_http_grpc_send_window_update(r, ctx) != NGX_OK) { | |
| 2100 return NGX_ERROR; | |
| 2101 } | |
| 2102 | |
| 2103 ngx_post_event(u->peer.connection->write, | |
| 2104 &ngx_posted_events); | |
| 2105 } | |
| 2106 } | |
| 2107 | |
| 2108 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
| 2109 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2110 "upstream sent frame for unknown stream %ui", | |
| 2111 ctx->stream_id); | |
| 2112 return NGX_ERROR; | |
| 2113 } | |
| 2114 | |
|
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2115 if (ctx->stream_id && ctx->done |
|
7647
716eddd74bc2
gRPC: WINDOW_UPDATE after END_STREAM handling (ticket #1797).
Ruslan Ermilov <ru@nginx.com>
parents:
7646
diff
changeset
|
2116 && ctx->type != NGX_HTTP_V2_RST_STREAM_FRAME |
|
716eddd74bc2
gRPC: WINDOW_UPDATE after END_STREAM handling (ticket #1797).
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parents:
7646
diff
changeset
|
2117 && ctx->type != NGX_HTTP_V2_WINDOW_UPDATE_FRAME) |
|
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2118 { |
|
7349
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gRPC: improved keepalive handling.
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|
2119 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
changeset
|
2120 "upstream sent frame for closed stream %ui", |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
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|
2121 ctx->stream_id); |
|
f6047a579ca1
gRPC: improved keepalive handling.
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diff
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|
2122 return NGX_ERROR; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
2123 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
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|
2124 |
| 7233 | 2125 ctx->padding = 0; |
| 2126 } | |
| 2127 | |
| 2128 if (ctx->state == ngx_http_grpc_st_padding) { | |
| 2129 | |
| 2130 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2131 ctx->rest -= b->last - b->pos; | |
| 2132 b->pos = b->last; | |
| 2133 return NGX_AGAIN; | |
| 2134 } | |
| 2135 | |
| 2136 b->pos += ctx->rest; | |
| 2137 ctx->rest = 0; | |
| 2138 ctx->state = ngx_http_grpc_st_start; | |
| 2139 | |
| 2140 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
|
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parents:
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diff
changeset
|
2141 ctx->done = 1; |
| 7233 | 2142 } |
| 2143 | |
| 2144 continue; | |
| 2145 } | |
| 2146 | |
| 2147 /* frame payload */ | |
| 2148 | |
| 2149 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
| 2150 | |
| 2151 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
| 2152 | |
| 2153 if (rc == NGX_AGAIN) { | |
| 2154 return NGX_AGAIN; | |
| 2155 } | |
| 2156 | |
| 2157 if (rc == NGX_ERROR) { | |
| 2158 return NGX_ERROR; | |
| 2159 } | |
| 2160 | |
|
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2161 if (ctx->error || !ctx->done) { |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2162 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
|
2163 "upstream rejected request with error %ui", |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2164 ctx->error); |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2165 return NGX_ERROR; |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2166 } |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2167 |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2168 if (ctx->rst) { |
|
2096b21fcd10
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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 sent frame for closed stream %ui", |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2171 ctx->stream_id); |
|
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 ctx->rst = 1; |
| 7233 | 2176 } |
| 2177 | |
| 2178 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
| 2179 | |
| 2180 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
| 2181 | |
| 2182 if (rc == NGX_AGAIN) { | |
| 2183 return NGX_AGAIN; | |
| 2184 } | |
| 2185 | |
| 2186 if (rc == NGX_ERROR) { | |
| 2187 return NGX_ERROR; | |
| 2188 } | |
| 2189 | |
| 2190 /* | |
| 2191 * If stream_id is lower than one we use, our | |
| 2192 * request won't be processed and needs to be retried. | |
| 2193 * If stream_id is greater or equal to the one we use, | |
| 2194 * we can continue normally (except we can't use this | |
| 2195 * connection for additional requests). If there is | |
| 2196 * a real error, the connection will be closed. | |
| 2197 */ | |
| 2198 | |
| 2199 if (ctx->stream_id < ctx->id) { | |
| 2200 | |
| 2201 /* TODO: we can retry non-idempotent requests */ | |
| 2202 | |
| 2203 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2204 "upstream sent goaway with error %ui", | |
| 2205 ctx->error); | |
| 2206 | |
| 2207 return NGX_ERROR; | |
| 2208 } | |
| 2209 | |
| 2210 continue; | |
| 2211 } | |
| 2212 | |
| 2213 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
| 2214 | |
| 2215 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
| 2216 | |
| 2217 if (rc == NGX_AGAIN) { | |
| 2218 return NGX_AGAIN; | |
| 2219 } | |
| 2220 | |
| 2221 if (rc == NGX_ERROR) { | |
| 2222 return NGX_ERROR; | |
| 2223 } | |
| 2224 | |
| 2225 if (ctx->in) { | |
| 2226 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2227 } | |
| 2228 | |
| 2229 continue; | |
| 2230 } | |
| 2231 | |
| 2232 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
| 2233 | |
| 2234 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
| 2235 | |
| 2236 if (rc == NGX_AGAIN) { | |
| 2237 return NGX_AGAIN; | |
| 2238 } | |
| 2239 | |
| 2240 if (rc == NGX_ERROR) { | |
| 2241 return NGX_ERROR; | |
| 2242 } | |
| 2243 | |
| 2244 if (ctx->in) { | |
| 2245 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2246 } | |
| 2247 | |
| 2248 continue; | |
| 2249 } | |
| 2250 | |
| 2251 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
| 2252 | |
| 2253 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
| 2254 | |
| 2255 if (rc == NGX_AGAIN) { | |
| 2256 return NGX_AGAIN; | |
| 2257 } | |
| 2258 | |
| 2259 if (rc == NGX_ERROR) { | |
| 2260 return NGX_ERROR; | |
| 2261 } | |
| 2262 | |
| 2263 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2264 continue; | |
| 2265 } | |
| 2266 | |
| 2267 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
| 2268 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2269 "upstream sent unexpected push promise frame"); | |
| 2270 return NGX_ERROR; | |
| 2271 } | |
| 2272 | |
| 2273 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME | |
| 2274 || ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) | |
| 2275 { | |
| 2276 for ( ;; ) { | |
| 2277 | |
| 2278 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
| 2279 | |
| 2280 if (rc == NGX_AGAIN) { | |
| 2281 break; | |
| 2282 } | |
| 2283 | |
| 2284 if (rc == NGX_OK) { | |
| 2285 | |
| 2286 /* a header line has been parsed successfully */ | |
| 2287 | |
| 2288 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2289 "grpc trailer: \"%V: %V\"", | |
| 2290 &ctx->name, &ctx->value); | |
| 2291 | |
| 2292 if (ctx->name.len && ctx->name.data[0] == ':') { | |
| 2293 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2294 "upstream sent invalid " | |
| 2295 "trailer \"%V: %V\"", | |
| 2296 &ctx->name, &ctx->value); | |
| 2297 return NGX_ERROR; | |
| 2298 } | |
| 2299 | |
| 2300 h = ngx_list_push(&u->headers_in.trailers); | |
| 2301 if (h == NULL) { | |
| 2302 return NGX_ERROR; | |
| 2303 } | |
| 2304 | |
| 2305 h->key = ctx->name; | |
| 2306 h->value = ctx->value; | |
| 2307 h->lowcase_key = h->key.data; | |
| 2308 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
| 2309 | |
| 2310 continue; | |
| 2311 } | |
| 2312 | |
| 2313 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
| 2314 | |
| 2315 /* a whole header has been parsed successfully */ | |
| 2316 | |
| 2317 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2318 "grpc trailer done"); | |
| 2319 | |
| 2320 if (ctx->end_stream) { | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2321 ctx->done = 1; |
|
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
changeset
|
2322 break; |
| 7233 | 2323 } |
| 2324 | |
| 2325 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2326 "upstream sent trailer without " | |
| 2327 "end stream flag"); | |
| 2328 return NGX_ERROR; | |
| 2329 } | |
| 2330 | |
| 2331 /* there was error while a header line parsing */ | |
| 2332 | |
| 2333 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2334 "upstream sent invalid trailer"); | |
| 2335 | |
| 2336 return NGX_ERROR; | |
| 2337 } | |
| 2338 | |
|
7349
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gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2339 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2340 continue; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2341 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2342 |
| 7233 | 2343 /* rc == NGX_AGAIN */ |
| 2344 | |
| 2345 if (ctx->rest == 0) { | |
| 2346 ctx->state = ngx_http_grpc_st_start; | |
| 2347 continue; | |
| 2348 } | |
| 2349 | |
| 2350 return NGX_AGAIN; | |
| 2351 } | |
| 2352 | |
| 2353 if (ctx->type != NGX_HTTP_V2_DATA_FRAME) { | |
| 2354 | |
| 2355 /* priority, unknown frames */ | |
| 2356 | |
| 2357 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2358 ctx->rest -= b->last - b->pos; | |
| 2359 b->pos = b->last; | |
| 2360 return NGX_AGAIN; | |
| 2361 } | |
| 2362 | |
| 2363 b->pos += ctx->rest; | |
| 2364 ctx->rest = 0; | |
| 2365 ctx->state = ngx_http_grpc_st_start; | |
| 2366 | |
| 2367 continue; | |
| 2368 } | |
| 2369 | |
| 2370 /* | |
| 2371 * data frame: | |
| 2372 * | |
| 2373 * +---------------+ | |
| 2374 * |Pad Length? (8)| | |
| 2375 * +---------------+-----------------------------------------------+ | |
| 2376 * | Data (*) ... | |
| 2377 * +---------------------------------------------------------------+ | |
| 2378 * | Padding (*) ... | |
| 2379 * +---------------------------------------------------------------+ | |
| 2380 */ | |
| 2381 | |
| 2382 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
| 2383 | |
| 2384 if (ctx->rest == 0) { | |
| 2385 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2386 "upstream sent too short http2 frame"); | |
| 2387 return NGX_ERROR; | |
| 2388 } | |
| 2389 | |
| 2390 if (b->pos == b->last) { | |
| 2391 return NGX_AGAIN; | |
| 2392 } | |
| 2393 | |
| 2394 ctx->flags &= ~NGX_HTTP_V2_PADDED_FLAG; | |
| 2395 ctx->padding = *b->pos++; | |
| 2396 ctx->rest -= 1; | |
| 2397 | |
| 2398 if (ctx->padding > ctx->rest) { | |
| 2399 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2400 "upstream sent http2 frame with too long " | |
| 2401 "padding: %d in frame %uz", | |
| 2402 ctx->padding, ctx->rest); | |
| 2403 return NGX_ERROR; | |
| 2404 } | |
| 2405 | |
| 2406 continue; | |
| 2407 } | |
| 2408 | |
| 2409 if (ctx->rest == ctx->padding) { | |
| 2410 goto done; | |
| 2411 } | |
| 2412 | |
| 2413 if (b->pos == b->last) { | |
| 2414 return NGX_AGAIN; | |
| 2415 } | |
| 2416 | |
| 2417 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
| 2418 if (cl == NULL) { | |
| 2419 return NGX_ERROR; | |
| 2420 } | |
| 2421 | |
| 2422 *ll = cl; | |
| 2423 ll = &cl->next; | |
| 2424 | |
| 2425 buf = cl->buf; | |
| 2426 | |
| 2427 buf->flush = 1; | |
| 2428 buf->memory = 1; | |
| 2429 | |
| 2430 buf->pos = b->pos; | |
| 2431 buf->tag = u->output.tag; | |
| 2432 | |
| 2433 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2434 "grpc output buf %p", buf->pos); | |
| 2435 | |
| 2436 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
| 2437 | |
| 2438 ctx->rest -= b->last - b->pos; | |
| 2439 b->pos = b->last; | |
| 2440 buf->last = b->pos; | |
| 2441 | |
|
7803
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2442 if (ctx->length != -1) { |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2443 |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2444 if (buf->last - buf->pos > ctx->length) { |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2445 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:
7787
diff
changeset
|
2446 "upstream sent response body larger " |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2447 "than indicated content length"); |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2448 return NGX_ERROR; |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2449 } |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2450 |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2451 ctx->length -= buf->last - buf->pos; |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2452 } |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2453 |
| 7233 | 2454 return NGX_AGAIN; |
| 2455 } | |
| 2456 | |
| 2457 b->pos += ctx->rest - ctx->padding; | |
| 2458 buf->last = b->pos; | |
| 2459 ctx->rest = ctx->padding; | |
| 2460 | |
|
7803
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2461 if (ctx->length != -1) { |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2462 |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2463 if (buf->last - buf->pos > ctx->length) { |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2464 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:
7787
diff
changeset
|
2465 "upstream sent response body larger " |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2466 "than indicated content length"); |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2467 return NGX_ERROR; |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2468 } |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2469 |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2470 ctx->length -= buf->last - buf->pos; |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2471 } |
|
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2472 |
| 7233 | 2473 done: |
| 2474 | |
| 2475 if (ctx->padding) { | |
| 2476 ctx->state = ngx_http_grpc_st_padding; | |
| 2477 continue; | |
| 2478 } | |
| 2479 | |
| 2480 ctx->state = ngx_http_grpc_st_start; | |
| 2481 | |
| 2482 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2483 ctx->done = 1; |
| 7233 | 2484 } |
| 2485 } | |
| 2486 | |
| 2487 return NGX_OK; | |
| 2488 } | |
| 2489 | |
| 2490 | |
| 2491 static ngx_int_t | |
| 2492 ngx_http_grpc_parse_frame(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2493 ngx_buf_t *b) | |
| 2494 { | |
| 2495 u_char ch, *p; | |
| 2496 ngx_http_grpc_state_e state; | |
| 2497 | |
| 2498 state = ctx->state; | |
| 2499 | |
| 2500 for (p = b->pos; p < b->last; p++) { | |
| 2501 ch = *p; | |
| 2502 | |
| 2503 #if 0 | |
| 2504 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2505 "grpc frame byte: %02Xd, s:%d", ch, state); | |
| 2506 #endif | |
| 2507 | |
| 2508 switch (state) { | |
| 2509 | |
| 2510 case ngx_http_grpc_st_start: | |
| 2511 ctx->rest = ch << 16; | |
| 2512 state = ngx_http_grpc_st_length_2; | |
| 2513 break; | |
| 2514 | |
| 2515 case ngx_http_grpc_st_length_2: | |
| 2516 ctx->rest |= ch << 8; | |
| 2517 state = ngx_http_grpc_st_length_3; | |
| 2518 break; | |
| 2519 | |
| 2520 case ngx_http_grpc_st_length_3: | |
| 2521 ctx->rest |= ch; | |
| 2522 | |
| 2523 if (ctx->rest > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 2524 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2525 "upstream sent too large http2 frame: %uz", | |
| 2526 ctx->rest); | |
| 2527 return NGX_ERROR; | |
| 2528 } | |
| 2529 | |
| 2530 state = ngx_http_grpc_st_type; | |
| 2531 break; | |
| 2532 | |
| 2533 case ngx_http_grpc_st_type: | |
| 2534 ctx->type = ch; | |
| 2535 state = ngx_http_grpc_st_flags; | |
| 2536 break; | |
| 2537 | |
| 2538 case ngx_http_grpc_st_flags: | |
| 2539 ctx->flags = ch; | |
| 2540 state = ngx_http_grpc_st_stream_id; | |
| 2541 break; | |
| 2542 | |
| 2543 case ngx_http_grpc_st_stream_id: | |
| 2544 ctx->stream_id = (ch & 0x7f) << 24; | |
| 2545 state = ngx_http_grpc_st_stream_id_2; | |
| 2546 break; | |
| 2547 | |
| 2548 case ngx_http_grpc_st_stream_id_2: | |
| 2549 ctx->stream_id |= ch << 16; | |
| 2550 state = ngx_http_grpc_st_stream_id_3; | |
| 2551 break; | |
| 2552 | |
| 2553 case ngx_http_grpc_st_stream_id_3: | |
| 2554 ctx->stream_id |= ch << 8; | |
| 2555 state = ngx_http_grpc_st_stream_id_4; | |
| 2556 break; | |
| 2557 | |
| 2558 case ngx_http_grpc_st_stream_id_4: | |
| 2559 ctx->stream_id |= ch; | |
| 2560 | |
| 2561 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2562 "grpc frame: %d, len: %uz, f:%d, i:%ui", | |
| 2563 ctx->type, ctx->rest, ctx->flags, ctx->stream_id); | |
| 2564 | |
| 2565 b->pos = p + 1; | |
| 2566 | |
| 2567 ctx->state = ngx_http_grpc_st_payload; | |
| 2568 ctx->frame_state = 0; | |
| 2569 | |
| 2570 return NGX_OK; | |
| 2571 | |
| 2572 /* suppress warning */ | |
| 2573 case ngx_http_grpc_st_payload: | |
| 2574 case ngx_http_grpc_st_padding: | |
| 2575 break; | |
| 2576 } | |
| 2577 } | |
| 2578 | |
| 2579 b->pos = p; | |
| 2580 ctx->state = state; | |
| 2581 | |
| 2582 return NGX_AGAIN; | |
| 2583 } | |
| 2584 | |
| 2585 | |
| 2586 static ngx_int_t | |
| 2587 ngx_http_grpc_parse_header(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2588 ngx_buf_t *b) | |
| 2589 { | |
| 2590 u_char ch, *p, *last; | |
| 2591 size_t min; | |
| 2592 ngx_int_t rc; | |
| 2593 enum { | |
| 2594 sw_start = 0, | |
| 2595 sw_padding_length, | |
| 2596 sw_dependency, | |
| 2597 sw_dependency_2, | |
| 2598 sw_dependency_3, | |
| 2599 sw_dependency_4, | |
| 2600 sw_weight, | |
| 2601 sw_fragment, | |
| 2602 sw_padding | |
| 2603 } state; | |
| 2604 | |
| 2605 state = ctx->frame_state; | |
| 2606 | |
| 2607 if (state == sw_start) { | |
| 2608 | |
| 2609 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2610 "grpc parse header: start"); | |
| 2611 | |
| 2612 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME) { | |
| 2613 ctx->parsing_headers = 1; | |
| 2614 ctx->fragment_state = 0; | |
| 2615 | |
| 2616 min = (ctx->flags & NGX_HTTP_V2_PADDED_FLAG ? 1 : 0) | |
| 2617 + (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG ? 5 : 0); | |
| 2618 | |
| 2619 if (ctx->rest < min) { | |
| 2620 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2621 "upstream sent headers frame " | |
| 2622 "with invalid length: %uz", | |
| 2623 ctx->rest); | |
| 2624 return NGX_ERROR; | |
| 2625 } | |
| 2626 | |
| 2627 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
| 2628 ctx->end_stream = 1; | |
| 2629 } | |
| 2630 | |
| 2631 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
| 2632 state = sw_padding_length; | |
| 2633 | |
| 2634 } else if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
| 2635 state = sw_dependency; | |
| 2636 | |
| 2637 } else { | |
| 2638 state = sw_fragment; | |
| 2639 } | |
| 2640 | |
| 2641 } else if (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) { | |
| 2642 state = sw_fragment; | |
| 2643 } | |
| 2644 | |
| 2645 ctx->padding = 0; | |
|
7242
25a4353633a0
gRPC: fixed missing state save in frame header parsing.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7240
diff
changeset
|
2646 ctx->frame_state = state; |
| 7233 | 2647 } |
| 2648 | |
| 2649 if (state < sw_fragment) { | |
| 2650 | |
| 2651 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2652 last = b->last; | |
| 2653 | |
| 2654 } else { | |
| 2655 last = b->pos + ctx->rest; | |
| 2656 } | |
| 2657 | |
| 2658 for (p = b->pos; p < last; p++) { | |
| 2659 ch = *p; | |
| 2660 | |
| 2661 #if 0 | |
| 2662 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2663 "grpc header byte: %02Xd s:%d", ch, state); | |
| 2664 #endif | |
| 2665 | |
| 2666 /* | |
| 2667 * headers frame: | |
| 2668 * | |
| 2669 * +---------------+ | |
| 2670 * |Pad Length? (8)| | |
| 2671 * +-+-------------+----------------------------------------------+ | |
| 2672 * |E| Stream Dependency? (31) | | |
| 2673 * +-+-------------+----------------------------------------------+ | |
| 2674 * | Weight? (8) | | |
| 2675 * +-+-------------+----------------------------------------------+ | |
| 2676 * | Header Block Fragment (*) ... | |
| 2677 * +--------------------------------------------------------------+ | |
| 2678 * | Padding (*) ... | |
| 2679 * +--------------------------------------------------------------+ | |
| 2680 */ | |
| 2681 | |
| 2682 switch (state) { | |
| 2683 | |
| 2684 case sw_padding_length: | |
| 2685 | |
| 2686 ctx->padding = ch; | |
| 2687 | |
| 2688 if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
| 2689 state = sw_dependency; | |
| 2690 break; | |
| 2691 } | |
| 2692 | |
| 2693 goto fragment; | |
| 2694 | |
| 2695 case sw_dependency: | |
| 2696 state = sw_dependency_2; | |
| 2697 break; | |
| 2698 | |
| 2699 case sw_dependency_2: | |
| 2700 state = sw_dependency_3; | |
| 2701 break; | |
| 2702 | |
| 2703 case sw_dependency_3: | |
| 2704 state = sw_dependency_4; | |
| 2705 break; | |
| 2706 | |
| 2707 case sw_dependency_4: | |
| 2708 state = sw_weight; | |
| 2709 break; | |
| 2710 | |
| 2711 case sw_weight: | |
| 2712 goto fragment; | |
| 2713 | |
| 2714 /* suppress warning */ | |
| 2715 case sw_start: | |
| 2716 case sw_fragment: | |
| 2717 case sw_padding: | |
| 2718 break; | |
| 2719 } | |
| 2720 } | |
| 2721 | |
| 2722 ctx->rest -= p - b->pos; | |
| 2723 b->pos = p; | |
| 2724 | |
| 2725 ctx->frame_state = state; | |
| 2726 return NGX_AGAIN; | |
| 2727 | |
| 2728 fragment: | |
| 2729 | |
| 2730 p++; | |
| 2731 ctx->rest -= p - b->pos; | |
| 2732 b->pos = p; | |
| 2733 | |
| 2734 if (ctx->padding > ctx->rest) { | |
| 2735 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2736 "upstream sent http2 frame with too long " | |
| 2737 "padding: %d in frame %uz", | |
| 2738 ctx->padding, ctx->rest); | |
| 2739 return NGX_ERROR; | |
| 2740 } | |
| 2741 | |
| 2742 state = sw_fragment; | |
| 2743 ctx->frame_state = state; | |
| 2744 } | |
| 2745 | |
| 2746 if (state == sw_fragment) { | |
| 2747 | |
| 2748 rc = ngx_http_grpc_parse_fragment(r, ctx, b); | |
| 2749 | |
| 2750 if (rc == NGX_AGAIN) { | |
| 2751 return NGX_AGAIN; | |
| 2752 } | |
| 2753 | |
| 2754 if (rc == NGX_ERROR) { | |
| 2755 return NGX_ERROR; | |
| 2756 } | |
| 2757 | |
| 2758 if (rc == NGX_OK) { | |
| 2759 return NGX_OK; | |
| 2760 } | |
| 2761 | |
| 2762 /* rc == NGX_DONE */ | |
| 2763 | |
| 2764 state = sw_padding; | |
| 2765 ctx->frame_state = state; | |
| 2766 } | |
| 2767 | |
| 2768 if (state == sw_padding) { | |
| 2769 | |
| 2770 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2771 | |
| 2772 ctx->rest -= b->last - b->pos; | |
| 2773 b->pos = b->last; | |
| 2774 | |
| 2775 return NGX_AGAIN; | |
| 2776 } | |
| 2777 | |
| 2778 b->pos += ctx->rest; | |
| 2779 ctx->rest = 0; | |
| 2780 | |
| 2781 ctx->state = ngx_http_grpc_st_start; | |
| 2782 | |
| 2783 if (ctx->flags & NGX_HTTP_V2_END_HEADERS_FLAG) { | |
| 2784 | |
| 2785 if (ctx->fragment_state) { | |
| 2786 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2787 "upstream sent truncated http2 header"); | |
| 2788 return NGX_ERROR; | |
| 2789 } | |
| 2790 | |
| 2791 ctx->parsing_headers = 0; | |
| 2792 | |
| 2793 return NGX_HTTP_PARSE_HEADER_DONE; | |
| 2794 } | |
| 2795 | |
| 2796 return NGX_AGAIN; | |
| 2797 } | |
| 2798 | |
| 2799 /* unreachable */ | |
| 2800 | |
| 2801 return NGX_ERROR; | |
| 2802 } | |
| 2803 | |
| 2804 | |
| 2805 static ngx_int_t | |
| 2806 ngx_http_grpc_parse_fragment(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2807 ngx_buf_t *b) | |
| 2808 { | |
| 2809 u_char ch, *p, *last; | |
| 2810 size_t size; | |
| 2811 ngx_uint_t index, size_update; | |
| 2812 enum { | |
| 2813 sw_start = 0, | |
| 2814 sw_index, | |
| 2815 sw_name_length, | |
| 2816 sw_name_length_2, | |
| 2817 sw_name_length_3, | |
| 2818 sw_name_length_4, | |
| 2819 sw_name, | |
| 2820 sw_name_bytes, | |
| 2821 sw_value_length, | |
| 2822 sw_value_length_2, | |
| 2823 sw_value_length_3, | |
| 2824 sw_value_length_4, | |
| 2825 sw_value, | |
| 2826 sw_value_bytes | |
| 2827 } state; | |
| 2828 | |
| 2829 /* header block fragment */ | |
| 2830 | |
| 2831 #if 0 | |
| 2832 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2833 "grpc header fragment %p:%p rest:%uz", | |
| 2834 b->pos, b->last, ctx->rest); | |
| 2835 #endif | |
| 2836 | |
| 2837 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
| 2838 last = b->last; | |
| 2839 | |
| 2840 } else { | |
| 2841 last = b->pos + ctx->rest - ctx->padding; | |
| 2842 } | |
| 2843 | |
| 2844 state = ctx->fragment_state; | |
| 2845 | |
| 2846 for (p = b->pos; p < last; p++) { | |
| 2847 ch = *p; | |
| 2848 | |
| 2849 #if 0 | |
| 2850 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2851 "grpc header byte: %02Xd s:%d", ch, state); | |
| 2852 #endif | |
| 2853 | |
| 2854 switch (state) { | |
| 2855 | |
| 2856 case sw_start: | |
| 2857 ctx->index = 0; | |
| 2858 | |
| 2859 if ((ch & 0x80) == 0x80) { | |
| 2860 /* | |
| 2861 * indexed header: | |
| 2862 * | |
| 2863 * 0 1 2 3 4 5 6 7 | |
| 2864 * +---+---+---+---+---+---+---+---+ | |
| 2865 * | 1 | Index (7+) | | |
| 2866 * +---+---------------------------+ | |
| 2867 */ | |
| 2868 | |
| 2869 index = ch & ~0x80; | |
| 2870 | |
| 2871 if (index == 0 || index > 61) { | |
| 2872 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2873 "upstream sent invalid http2 " | |
| 2874 "table index: %ui", index); | |
| 2875 return NGX_ERROR; | |
| 2876 } | |
| 2877 | |
| 2878 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2879 "grpc indexed header: %ui", index); | |
| 2880 | |
| 2881 ctx->index = index; | |
| 2882 ctx->literal = 0; | |
| 2883 | |
| 2884 goto done; | |
| 2885 | |
| 2886 } else if ((ch & 0xc0) == 0x40) { | |
| 2887 /* | |
| 2888 * literal header with incremental indexing: | |
| 2889 * | |
| 2890 * 0 1 2 3 4 5 6 7 | |
| 2891 * +---+---+---+---+---+---+---+---+ | |
| 2892 * | 0 | 1 | Index (6+) | | |
| 2893 * +---+---+-----------------------+ | |
| 2894 * | H | Value Length (7+) | | |
| 2895 * +---+---------------------------+ | |
| 2896 * | Value String (Length octets) | | |
| 2897 * +-------------------------------+ | |
| 2898 * | |
| 2899 * 0 1 2 3 4 5 6 7 | |
| 2900 * +---+---+---+---+---+---+---+---+ | |
| 2901 * | 0 | 1 | 0 | | |
| 2902 * +---+---+-----------------------+ | |
| 2903 * | H | Name Length (7+) | | |
| 2904 * +---+---------------------------+ | |
| 2905 * | Name String (Length octets) | | |
| 2906 * +---+---------------------------+ | |
| 2907 * | H | Value Length (7+) | | |
| 2908 * +---+---------------------------+ | |
| 2909 * | Value String (Length octets) | | |
| 2910 * +-------------------------------+ | |
| 2911 */ | |
| 2912 | |
| 2913 index = ch & ~0xc0; | |
| 2914 | |
| 2915 if (index > 61) { | |
| 2916 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2917 "upstream sent invalid http2 " | |
| 2918 "table index: %ui", index); | |
| 2919 return NGX_ERROR; | |
| 2920 } | |
| 2921 | |
| 2922 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2923 "grpc literal header: %ui", index); | |
| 2924 | |
| 2925 if (index == 0) { | |
| 2926 state = sw_name_length; | |
| 2927 break; | |
| 2928 } | |
| 2929 | |
| 2930 ctx->index = index; | |
| 2931 ctx->literal = 1; | |
| 2932 | |
| 2933 state = sw_value_length; | |
| 2934 break; | |
| 2935 | |
| 2936 } else if ((ch & 0xe0) == 0x20) { | |
| 2937 /* | |
| 2938 * dynamic table size update: | |
| 2939 * | |
| 2940 * 0 1 2 3 4 5 6 7 | |
| 2941 * +---+---+---+---+---+---+---+---+ | |
| 2942 * | 0 | 0 | 1 | Max size (5+) | | |
| 2943 * +---+---------------------------+ | |
| 2944 */ | |
| 2945 | |
| 2946 size_update = ch & ~0xe0; | |
| 2947 | |
| 2948 if (size_update > 0) { | |
| 2949 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2950 "upstream sent invalid http2 " | |
| 2951 "dynamic table size update: %ui", | |
| 2952 size_update); | |
| 2953 return NGX_ERROR; | |
| 2954 } | |
| 2955 | |
| 2956 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2957 "grpc table size update: %ui", size_update); | |
| 2958 | |
| 2959 break; | |
| 2960 | |
| 2961 } else if ((ch & 0xf0) == 0x10) { | |
| 2962 /* | |
| 2963 * literal header field never indexed: | |
| 2964 * | |
| 2965 * 0 1 2 3 4 5 6 7 | |
| 2966 * +---+---+---+---+---+---+---+---+ | |
| 2967 * | 0 | 0 | 0 | 1 | Index (4+) | | |
| 2968 * +---+---+-----------------------+ | |
| 2969 * | H | Value Length (7+) | | |
| 2970 * +---+---------------------------+ | |
| 2971 * | Value String (Length octets) | | |
| 2972 * +-------------------------------+ | |
| 2973 * | |
| 2974 * 0 1 2 3 4 5 6 7 | |
| 2975 * +---+---+---+---+---+---+---+---+ | |
| 2976 * | 0 | 0 | 0 | 1 | 0 | | |
| 2977 * +---+---+-----------------------+ | |
| 2978 * | H | Name Length (7+) | | |
| 2979 * +---+---------------------------+ | |
| 2980 * | Name String (Length octets) | | |
| 2981 * +---+---------------------------+ | |
| 2982 * | H | Value Length (7+) | | |
| 2983 * +---+---------------------------+ | |
| 2984 * | Value String (Length octets) | | |
| 2985 * +-------------------------------+ | |
| 2986 */ | |
| 2987 | |
| 2988 index = ch & ~0xf0; | |
| 2989 | |
| 2990 if (index == 0x0f) { | |
| 2991 ctx->index = index; | |
| 2992 ctx->literal = 1; | |
| 2993 state = sw_index; | |
| 2994 break; | |
| 2995 } | |
| 2996 | |
| 2997 if (index == 0) { | |
| 2998 state = sw_name_length; | |
| 2999 break; | |
| 3000 } | |
| 3001 | |
| 3002 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3003 "grpc literal header never indexed: %ui", | |
| 3004 index); | |
| 3005 | |
| 3006 ctx->index = index; | |
| 3007 ctx->literal = 1; | |
| 3008 | |
| 3009 state = sw_value_length; | |
| 3010 break; | |
| 3011 | |
| 3012 } else if ((ch & 0xf0) == 0x00) { | |
| 3013 /* | |
| 3014 * literal header field without indexing: | |
| 3015 * | |
| 3016 * 0 1 2 3 4 5 6 7 | |
| 3017 * +---+---+---+---+---+---+---+---+ | |
| 3018 * | 0 | 0 | 0 | 0 | Index (4+) | | |
| 3019 * +---+---+-----------------------+ | |
| 3020 * | H | Value Length (7+) | | |
| 3021 * +---+---------------------------+ | |
| 3022 * | Value String (Length octets) | | |
| 3023 * +-------------------------------+ | |
| 3024 * | |
| 3025 * 0 1 2 3 4 5 6 7 | |
| 3026 * +---+---+---+---+---+---+---+---+ | |
| 3027 * | 0 | 0 | 0 | 0 | 0 | | |
| 3028 * +---+---+-----------------------+ | |
| 3029 * | H | Name Length (7+) | | |
| 3030 * +---+---------------------------+ | |
| 3031 * | Name String (Length octets) | | |
| 3032 * +---+---------------------------+ | |
| 3033 * | H | Value Length (7+) | | |
| 3034 * +---+---------------------------+ | |
| 3035 * | Value String (Length octets) | | |
| 3036 * +-------------------------------+ | |
| 3037 */ | |
| 3038 | |
| 3039 index = ch & ~0xf0; | |
| 3040 | |
| 3041 if (index == 0x0f) { | |
| 3042 ctx->index = index; | |
| 3043 ctx->literal = 1; | |
| 3044 state = sw_index; | |
| 3045 break; | |
| 3046 } | |
| 3047 | |
| 3048 if (index == 0) { | |
| 3049 state = sw_name_length; | |
| 3050 break; | |
| 3051 } | |
| 3052 | |
| 3053 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3054 "grpc literal header without indexing: %ui", | |
| 3055 index); | |
| 3056 | |
| 3057 ctx->index = index; | |
| 3058 ctx->literal = 1; | |
| 3059 | |
| 3060 state = sw_value_length; | |
| 3061 break; | |
| 3062 } | |
| 3063 | |
| 3064 /* not reached */ | |
| 3065 | |
| 3066 return NGX_ERROR; | |
| 3067 | |
| 3068 case sw_index: | |
| 3069 ctx->index = ctx->index + (ch & ~0x80); | |
| 3070 | |
| 3071 if (ch & 0x80) { | |
| 3072 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3073 "upstream sent http2 table index " | |
| 3074 "with continuation flag"); | |
| 3075 return NGX_ERROR; | |
| 3076 } | |
| 3077 | |
| 3078 if (ctx->index > 61) { | |
| 3079 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3080 "upstream sent invalid http2 " | |
| 3081 "table index: %ui", ctx->index); | |
| 3082 return NGX_ERROR; | |
| 3083 } | |
| 3084 | |
| 3085 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3086 "grpc header index: %ui", ctx->index); | |
| 3087 | |
| 3088 state = sw_value_length; | |
| 3089 break; | |
| 3090 | |
| 3091 case sw_name_length: | |
| 3092 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
| 3093 ctx->field_length = ch & ~0x80; | |
| 3094 | |
| 3095 if (ctx->field_length == 0x7f) { | |
| 3096 state = sw_name_length_2; | |
| 3097 break; | |
| 3098 } | |
| 3099 | |
| 3100 if (ctx->field_length == 0) { | |
| 3101 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3102 "upstream sent zero http2 " | |
| 3103 "header name length"); | |
| 3104 return NGX_ERROR; | |
| 3105 } | |
| 3106 | |
| 3107 state = sw_name; | |
| 3108 break; | |
| 3109 | |
| 3110 case sw_name_length_2: | |
| 3111 ctx->field_length += ch & ~0x80; | |
| 3112 | |
| 3113 if (ch & 0x80) { | |
| 3114 state = sw_name_length_3; | |
| 3115 break; | |
| 3116 } | |
| 3117 | |
| 3118 state = sw_name; | |
| 3119 break; | |
| 3120 | |
| 3121 case sw_name_length_3: | |
| 3122 ctx->field_length += (ch & ~0x80) << 7; | |
| 3123 | |
| 3124 if (ch & 0x80) { | |
| 3125 state = sw_name_length_4; | |
| 3126 break; | |
| 3127 } | |
| 3128 | |
| 3129 state = sw_name; | |
| 3130 break; | |
| 3131 | |
| 3132 case sw_name_length_4: | |
| 3133 ctx->field_length += (ch & ~0x80) << 14; | |
| 3134 | |
| 3135 if (ch & 0x80) { | |
| 3136 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3137 "upstream sent too large http2 " | |
| 3138 "header name length"); | |
| 3139 return NGX_ERROR; | |
| 3140 } | |
| 3141 | |
| 3142 state = sw_name; | |
| 3143 break; | |
| 3144 | |
| 3145 case sw_name: | |
| 3146 ctx->name.len = ctx->field_huffman ? | |
| 3147 ctx->field_length * 8 / 5 : ctx->field_length; | |
| 3148 | |
| 3149 ctx->name.data = ngx_pnalloc(r->pool, ctx->name.len + 1); | |
| 3150 if (ctx->name.data == NULL) { | |
| 3151 return NGX_ERROR; | |
| 3152 } | |
| 3153 | |
| 3154 ctx->field_end = ctx->name.data; | |
| 3155 ctx->field_rest = ctx->field_length; | |
| 3156 ctx->field_state = 0; | |
| 3157 | |
| 3158 state = sw_name_bytes; | |
| 3159 | |
| 3160 /* fall through */ | |
| 3161 | |
| 3162 case sw_name_bytes: | |
| 3163 | |
| 3164 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3165 "grpc name: len:%uz h:%d last:%uz, rest:%uz", | |
| 3166 ctx->field_length, | |
| 3167 ctx->field_huffman, | |
| 3168 last - p, | |
| 3169 ctx->rest - (p - b->pos)); | |
| 3170 | |
| 3171 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
| 3172 ctx->field_rest -= size; | |
| 3173 | |
| 3174 if (ctx->field_huffman) { | |
| 3175 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
| 3176 &ctx->field_end, | |
| 3177 ctx->field_rest == 0, | |
| 3178 r->connection->log) | |
| 3179 != NGX_OK) | |
| 3180 { | |
| 3181 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3182 "upstream sent invalid encoded header"); | |
| 3183 return NGX_ERROR; | |
| 3184 } | |
| 3185 | |
| 3186 ctx->name.len = ctx->field_end - ctx->name.data; | |
| 3187 ctx->name.data[ctx->name.len] = '\0'; | |
| 3188 | |
| 3189 } else { | |
|
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3190 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
| 7233 | 3191 ctx->name.data[ctx->name.len] = '\0'; |
| 3192 } | |
| 3193 | |
| 3194 p += size - 1; | |
| 3195 | |
| 3196 if (ctx->field_rest == 0) { | |
| 3197 state = sw_value_length; | |
| 3198 } | |
| 3199 | |
| 3200 break; | |
| 3201 | |
| 3202 case sw_value_length: | |
| 3203 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
| 3204 ctx->field_length = ch & ~0x80; | |
| 3205 | |
| 3206 if (ctx->field_length == 0x7f) { | |
| 3207 state = sw_value_length_2; | |
| 3208 break; | |
| 3209 } | |
| 3210 | |
| 3211 if (ctx->field_length == 0) { | |
| 3212 ngx_str_set(&ctx->value, ""); | |
| 3213 goto done; | |
| 3214 } | |
| 3215 | |
| 3216 state = sw_value; | |
| 3217 break; | |
| 3218 | |
| 3219 case sw_value_length_2: | |
| 3220 ctx->field_length += ch & ~0x80; | |
| 3221 | |
| 3222 if (ch & 0x80) { | |
| 3223 state = sw_value_length_3; | |
| 3224 break; | |
| 3225 } | |
| 3226 | |
| 3227 state = sw_value; | |
| 3228 break; | |
| 3229 | |
| 3230 case sw_value_length_3: | |
| 3231 ctx->field_length += (ch & ~0x80) << 7; | |
| 3232 | |
| 3233 if (ch & 0x80) { | |
| 3234 state = sw_value_length_4; | |
| 3235 break; | |
| 3236 } | |
| 3237 | |
| 3238 state = sw_value; | |
| 3239 break; | |
| 3240 | |
| 3241 case sw_value_length_4: | |
| 3242 ctx->field_length += (ch & ~0x80) << 14; | |
| 3243 | |
| 3244 if (ch & 0x80) { | |
| 3245 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3246 "upstream sent too large http2 " | |
| 3247 "header value length"); | |
| 3248 return NGX_ERROR; | |
| 3249 } | |
| 3250 | |
| 3251 state = sw_value; | |
| 3252 break; | |
| 3253 | |
| 3254 case sw_value: | |
| 3255 ctx->value.len = ctx->field_huffman ? | |
| 3256 ctx->field_length * 8 / 5 : ctx->field_length; | |
| 3257 | |
| 3258 ctx->value.data = ngx_pnalloc(r->pool, ctx->value.len + 1); | |
| 3259 if (ctx->value.data == NULL) { | |
| 3260 return NGX_ERROR; | |
| 3261 } | |
| 3262 | |
| 3263 ctx->field_end = ctx->value.data; | |
| 3264 ctx->field_rest = ctx->field_length; | |
| 3265 ctx->field_state = 0; | |
| 3266 | |
| 3267 state = sw_value_bytes; | |
| 3268 | |
| 3269 /* fall through */ | |
| 3270 | |
| 3271 case sw_value_bytes: | |
| 3272 | |
| 3273 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3274 "grpc value: len:%uz h:%d last:%uz, rest:%uz", | |
| 3275 ctx->field_length, | |
| 3276 ctx->field_huffman, | |
| 3277 last - p, | |
| 3278 ctx->rest - (p - b->pos)); | |
| 3279 | |
| 3280 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
| 3281 ctx->field_rest -= size; | |
| 3282 | |
| 3283 if (ctx->field_huffman) { | |
| 3284 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
| 3285 &ctx->field_end, | |
| 3286 ctx->field_rest == 0, | |
| 3287 r->connection->log) | |
| 3288 != NGX_OK) | |
| 3289 { | |
| 3290 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3291 "upstream sent invalid encoded header"); | |
| 3292 return NGX_ERROR; | |
| 3293 } | |
| 3294 | |
| 3295 ctx->value.len = ctx->field_end - ctx->value.data; | |
| 3296 ctx->value.data[ctx->value.len] = '\0'; | |
| 3297 | |
| 3298 } else { | |
|
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3299 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
| 7233 | 3300 ctx->value.data[ctx->value.len] = '\0'; |
| 3301 } | |
| 3302 | |
| 3303 p += size - 1; | |
| 3304 | |
| 3305 if (ctx->field_rest == 0) { | |
| 3306 goto done; | |
| 3307 } | |
| 3308 | |
| 3309 break; | |
| 3310 } | |
| 3311 | |
| 3312 continue; | |
| 3313 | |
| 3314 done: | |
| 3315 | |
| 3316 p++; | |
| 3317 ctx->rest -= p - b->pos; | |
| 3318 ctx->fragment_state = sw_start; | |
| 3319 b->pos = p; | |
| 3320 | |
| 3321 if (ctx->index) { | |
| 3322 ctx->name = *ngx_http_v2_get_static_name(ctx->index); | |
| 3323 } | |
| 3324 | |
| 3325 if (ctx->index && !ctx->literal) { | |
| 3326 ctx->value = *ngx_http_v2_get_static_value(ctx->index); | |
| 3327 } | |
| 3328 | |
| 3329 if (!ctx->index) { | |
| 3330 if (ngx_http_grpc_validate_header_name(r, &ctx->name) != NGX_OK) { | |
| 3331 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3332 "upstream sent invalid header: \"%V: %V\"", | |
| 3333 &ctx->name, &ctx->value); | |
| 3334 return NGX_ERROR; | |
| 3335 } | |
| 3336 } | |
| 3337 | |
| 3338 if (!ctx->index || ctx->literal) { | |
| 3339 if (ngx_http_grpc_validate_header_value(r, &ctx->value) != 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 return NGX_OK; | |
| 3348 } | |
| 3349 | |
| 3350 ctx->rest -= p - b->pos; | |
| 3351 ctx->fragment_state = state; | |
| 3352 b->pos = p; | |
| 3353 | |
| 3354 if (ctx->rest > ctx->padding) { | |
| 3355 return NGX_AGAIN; | |
| 3356 } | |
| 3357 | |
| 3358 return NGX_DONE; | |
| 3359 } | |
| 3360 | |
| 3361 | |
| 3362 static ngx_int_t | |
| 3363 ngx_http_grpc_validate_header_name(ngx_http_request_t *r, ngx_str_t *s) | |
| 3364 { | |
| 3365 u_char ch; | |
| 3366 ngx_uint_t i; | |
| 3367 | |
| 3368 for (i = 0; i < s->len; i++) { | |
| 3369 ch = s->data[i]; | |
| 3370 | |
| 3371 if (ch == ':' && i > 0) { | |
| 3372 return NGX_ERROR; | |
| 3373 } | |
| 3374 | |
| 3375 if (ch >= 'A' && ch <= 'Z') { | |
| 3376 return NGX_ERROR; | |
| 3377 } | |
| 3378 | |
| 3379 if (ch == '\0' || ch == CR || ch == LF) { | |
| 3380 return NGX_ERROR; | |
| 3381 } | |
| 3382 } | |
| 3383 | |
| 3384 return NGX_OK; | |
| 3385 } | |
| 3386 | |
| 3387 | |
| 3388 static ngx_int_t | |
| 3389 ngx_http_grpc_validate_header_value(ngx_http_request_t *r, ngx_str_t *s) | |
| 3390 { | |
| 3391 u_char ch; | |
| 3392 ngx_uint_t i; | |
| 3393 | |
| 3394 for (i = 0; i < s->len; i++) { | |
| 3395 ch = s->data[i]; | |
| 3396 | |
| 3397 if (ch == '\0' || ch == CR || ch == LF) { | |
| 3398 return NGX_ERROR; | |
| 3399 } | |
| 3400 } | |
| 3401 | |
| 3402 return NGX_OK; | |
| 3403 } | |
| 3404 | |
| 3405 | |
| 3406 static ngx_int_t | |
| 3407 ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3408 ngx_buf_t *b) | |
| 3409 { | |
| 3410 u_char ch, *p, *last; | |
| 3411 enum { | |
| 3412 sw_start = 0, | |
| 3413 sw_error_2, | |
| 3414 sw_error_3, | |
| 3415 sw_error_4 | |
| 3416 } state; | |
| 3417 | |
| 3418 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3419 last = b->last; | |
| 3420 | |
| 3421 } else { | |
| 3422 last = b->pos + ctx->rest; | |
| 3423 } | |
| 3424 | |
| 3425 state = ctx->frame_state; | |
| 3426 | |
| 3427 if (state == sw_start) { | |
| 3428 if (ctx->rest != 4) { | |
| 3429 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3430 "upstream sent rst stream frame " | |
| 3431 "with invalid length: %uz", | |
| 3432 ctx->rest); | |
| 3433 return NGX_ERROR; | |
| 3434 } | |
| 3435 } | |
| 3436 | |
| 3437 for (p = b->pos; p < last; p++) { | |
| 3438 ch = *p; | |
| 3439 | |
| 3440 #if 0 | |
| 3441 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3442 "grpc rst byte: %02Xd s:%d", ch, state); | |
| 3443 #endif | |
| 3444 | |
| 3445 switch (state) { | |
| 3446 | |
| 3447 case sw_start: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3448 ctx->error = (ngx_uint_t) ch << 24; |
| 7233 | 3449 state = sw_error_2; |
| 3450 break; | |
| 3451 | |
| 3452 case sw_error_2: | |
| 3453 ctx->error |= ch << 16; | |
| 3454 state = sw_error_3; | |
| 3455 break; | |
| 3456 | |
| 3457 case sw_error_3: | |
| 3458 ctx->error |= ch << 8; | |
| 3459 state = sw_error_4; | |
| 3460 break; | |
| 3461 | |
| 3462 case sw_error_4: | |
| 3463 ctx->error |= ch; | |
| 3464 state = sw_start; | |
| 3465 | |
| 3466 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3467 "grpc error: %ui", ctx->error); | |
| 3468 | |
| 3469 break; | |
| 3470 } | |
| 3471 } | |
| 3472 | |
| 3473 ctx->rest -= p - b->pos; | |
| 3474 ctx->frame_state = state; | |
| 3475 b->pos = p; | |
| 3476 | |
| 3477 if (ctx->rest > 0) { | |
| 3478 return NGX_AGAIN; | |
| 3479 } | |
| 3480 | |
| 3481 return NGX_OK; | |
| 3482 } | |
| 3483 | |
| 3484 | |
| 3485 static ngx_int_t | |
| 3486 ngx_http_grpc_parse_goaway(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3487 ngx_buf_t *b) | |
| 3488 { | |
| 3489 u_char ch, *p, *last; | |
| 3490 enum { | |
| 3491 sw_start = 0, | |
| 3492 sw_last_stream_id_2, | |
| 3493 sw_last_stream_id_3, | |
| 3494 sw_last_stream_id_4, | |
| 3495 sw_error, | |
| 3496 sw_error_2, | |
| 3497 sw_error_3, | |
| 3498 sw_error_4, | |
| 3499 sw_debug | |
| 3500 } state; | |
| 3501 | |
| 3502 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3503 last = b->last; | |
| 3504 | |
| 3505 } else { | |
| 3506 last = b->pos + ctx->rest; | |
| 3507 } | |
| 3508 | |
| 3509 state = ctx->frame_state; | |
| 3510 | |
| 3511 if (state == sw_start) { | |
| 3512 | |
| 3513 if (ctx->stream_id) { | |
| 3514 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3515 "upstream sent goaway frame " | |
| 3516 "with non-zero stream id: %ui", | |
| 3517 ctx->stream_id); | |
| 3518 return NGX_ERROR; | |
| 3519 } | |
| 3520 | |
| 3521 if (ctx->rest < 8) { | |
| 3522 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3523 "upstream sent goaway frame " | |
| 3524 "with invalid length: %uz", | |
| 3525 ctx->rest); | |
| 3526 return NGX_ERROR; | |
| 3527 } | |
| 3528 } | |
| 3529 | |
| 3530 for (p = b->pos; p < last; p++) { | |
| 3531 ch = *p; | |
| 3532 | |
| 3533 #if 0 | |
| 3534 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3535 "grpc goaway byte: %02Xd s:%d", ch, state); | |
| 3536 #endif | |
| 3537 | |
| 3538 switch (state) { | |
| 3539 | |
| 3540 case sw_start: | |
| 3541 ctx->stream_id = (ch & 0x7f) << 24; | |
| 3542 state = sw_last_stream_id_2; | |
| 3543 break; | |
| 3544 | |
| 3545 case sw_last_stream_id_2: | |
| 3546 ctx->stream_id |= ch << 16; | |
| 3547 state = sw_last_stream_id_3; | |
| 3548 break; | |
| 3549 | |
| 3550 case sw_last_stream_id_3: | |
| 3551 ctx->stream_id |= ch << 8; | |
| 3552 state = sw_last_stream_id_4; | |
| 3553 break; | |
| 3554 | |
| 3555 case sw_last_stream_id_4: | |
| 3556 ctx->stream_id |= ch; | |
| 3557 state = sw_error; | |
| 3558 break; | |
| 3559 | |
| 3560 case sw_error: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3561 ctx->error = (ngx_uint_t) ch << 24; |
| 7233 | 3562 state = sw_error_2; |
| 3563 break; | |
| 3564 | |
| 3565 case sw_error_2: | |
| 3566 ctx->error |= ch << 16; | |
| 3567 state = sw_error_3; | |
| 3568 break; | |
| 3569 | |
| 3570 case sw_error_3: | |
| 3571 ctx->error |= ch << 8; | |
| 3572 state = sw_error_4; | |
| 3573 break; | |
| 3574 | |
| 3575 case sw_error_4: | |
| 3576 ctx->error |= ch; | |
| 3577 state = sw_debug; | |
| 3578 break; | |
| 3579 | |
| 3580 case sw_debug: | |
| 3581 break; | |
| 3582 } | |
| 3583 } | |
| 3584 | |
| 3585 ctx->rest -= p - b->pos; | |
| 3586 ctx->frame_state = state; | |
| 3587 b->pos = p; | |
| 3588 | |
| 3589 if (ctx->rest > 0) { | |
| 3590 return NGX_AGAIN; | |
| 3591 } | |
| 3592 | |
| 3593 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3594 "grpc goaway: %ui, stream %ui", | |
| 3595 ctx->error, ctx->stream_id); | |
| 3596 | |
| 3597 ctx->state = ngx_http_grpc_st_start; | |
| 3598 | |
| 3599 return NGX_OK; | |
| 3600 } | |
| 3601 | |
| 3602 | |
| 3603 static ngx_int_t | |
| 3604 ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
| 3605 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
| 3606 { | |
| 3607 u_char ch, *p, *last; | |
| 3608 enum { | |
| 3609 sw_start = 0, | |
| 3610 sw_size_2, | |
| 3611 sw_size_3, | |
| 3612 sw_size_4 | |
| 3613 } state; | |
| 3614 | |
| 3615 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3616 last = b->last; | |
| 3617 | |
| 3618 } else { | |
| 3619 last = b->pos + ctx->rest; | |
| 3620 } | |
| 3621 | |
| 3622 state = ctx->frame_state; | |
| 3623 | |
| 3624 if (state == sw_start) { | |
| 3625 if (ctx->rest != 4) { | |
| 3626 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3627 "upstream sent window update frame " | |
| 3628 "with invalid length: %uz", | |
| 3629 ctx->rest); | |
| 3630 return NGX_ERROR; | |
| 3631 } | |
| 3632 } | |
| 3633 | |
| 3634 for (p = b->pos; p < last; p++) { | |
| 3635 ch = *p; | |
| 3636 | |
| 3637 #if 0 | |
| 3638 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3639 "grpc window update byte: %02Xd s:%d", ch, state); | |
| 3640 #endif | |
| 3641 | |
| 3642 switch (state) { | |
| 3643 | |
| 3644 case sw_start: | |
| 3645 ctx->window_update = (ch & 0x7f) << 24; | |
| 3646 state = sw_size_2; | |
| 3647 break; | |
| 3648 | |
| 3649 case sw_size_2: | |
| 3650 ctx->window_update |= ch << 16; | |
| 3651 state = sw_size_3; | |
| 3652 break; | |
| 3653 | |
| 3654 case sw_size_3: | |
| 3655 ctx->window_update |= ch << 8; | |
| 3656 state = sw_size_4; | |
| 3657 break; | |
| 3658 | |
| 3659 case sw_size_4: | |
| 3660 ctx->window_update |= ch; | |
| 3661 state = sw_start; | |
| 3662 break; | |
| 3663 } | |
| 3664 } | |
| 3665 | |
| 3666 ctx->rest -= p - b->pos; | |
| 3667 ctx->frame_state = state; | |
| 3668 b->pos = p; | |
| 3669 | |
| 3670 if (ctx->rest > 0) { | |
| 3671 return NGX_AGAIN; | |
| 3672 } | |
| 3673 | |
| 3674 ctx->state = ngx_http_grpc_st_start; | |
| 3675 | |
| 3676 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3677 "grpc window update: %ui", ctx->window_update); | |
| 3678 | |
| 3679 if (ctx->stream_id) { | |
| 3680 | |
| 3681 if (ctx->window_update > (size_t) NGX_HTTP_V2_MAX_WINDOW | |
| 3682 - ctx->send_window) | |
| 3683 { | |
| 3684 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3685 "upstream sent too large window update"); | |
| 3686 return NGX_ERROR; | |
| 3687 } | |
| 3688 | |
| 3689 ctx->send_window += ctx->window_update; | |
| 3690 | |
| 3691 } else { | |
| 3692 | |
| 3693 if (ctx->window_update > NGX_HTTP_V2_MAX_WINDOW | |
| 3694 - ctx->connection->send_window) | |
| 3695 { | |
| 3696 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3697 "upstream sent too large window update"); | |
| 3698 return NGX_ERROR; | |
| 3699 } | |
| 3700 | |
| 3701 ctx->connection->send_window += ctx->window_update; | |
| 3702 } | |
| 3703 | |
| 3704 return NGX_OK; | |
| 3705 } | |
| 3706 | |
| 3707 | |
| 3708 static ngx_int_t | |
| 3709 ngx_http_grpc_parse_settings(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3710 ngx_buf_t *b) | |
| 3711 { | |
| 3712 u_char ch, *p, *last; | |
| 3713 ssize_t window_update; | |
| 3714 enum { | |
| 3715 sw_start = 0, | |
| 3716 sw_id, | |
| 3717 sw_id_2, | |
| 3718 sw_value, | |
| 3719 sw_value_2, | |
| 3720 sw_value_3, | |
| 3721 sw_value_4 | |
| 3722 } state; | |
| 3723 | |
| 3724 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3725 last = b->last; | |
| 3726 | |
| 3727 } else { | |
| 3728 last = b->pos + ctx->rest; | |
| 3729 } | |
| 3730 | |
| 3731 state = ctx->frame_state; | |
| 3732 | |
| 3733 if (state == sw_start) { | |
| 3734 | |
| 3735 if (ctx->stream_id) { | |
| 3736 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3737 "upstream sent settings frame " | |
| 3738 "with non-zero stream id: %ui", | |
| 3739 ctx->stream_id); | |
| 3740 return NGX_ERROR; | |
| 3741 } | |
| 3742 | |
| 3743 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
| 3744 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3745 "grpc settings ack"); | |
| 3746 | |
| 3747 if (ctx->rest != 0) { | |
| 3748 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3749 "upstream sent settings frame " | |
| 3750 "with ack flag and non-zero length: %uz", | |
| 3751 ctx->rest); | |
| 3752 return NGX_ERROR; | |
| 3753 } | |
| 3754 | |
| 3755 ctx->state = ngx_http_grpc_st_start; | |
| 3756 | |
| 3757 return NGX_OK; | |
| 3758 } | |
| 3759 | |
| 3760 if (ctx->rest % 6 != 0) { | |
| 3761 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3762 "upstream sent settings frame " | |
| 3763 "with invalid length: %uz", | |
| 3764 ctx->rest); | |
| 3765 return NGX_ERROR; | |
| 3766 } | |
|
7379
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3767 |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3768 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
|
3769 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
|
3770 "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
|
3771 return NGX_ERROR; |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3772 } |
| 7233 | 3773 } |
| 3774 | |
| 3775 for (p = b->pos; p < last; p++) { | |
| 3776 ch = *p; | |
| 3777 | |
| 3778 #if 0 | |
| 3779 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3780 "grpc settings byte: %02Xd s:%d", ch, state); | |
| 3781 #endif | |
| 3782 | |
| 3783 switch (state) { | |
| 3784 | |
| 3785 case sw_start: | |
| 3786 case sw_id: | |
| 3787 ctx->setting_id = ch << 8; | |
| 3788 state = sw_id_2; | |
| 3789 break; | |
| 3790 | |
| 3791 case sw_id_2: | |
| 3792 ctx->setting_id |= ch; | |
| 3793 state = sw_value; | |
| 3794 break; | |
| 3795 | |
| 3796 case sw_value: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3797 ctx->setting_value = (ngx_uint_t) ch << 24; |
| 7233 | 3798 state = sw_value_2; |
| 3799 break; | |
| 3800 | |
| 3801 case sw_value_2: | |
| 3802 ctx->setting_value |= ch << 16; | |
| 3803 state = sw_value_3; | |
| 3804 break; | |
| 3805 | |
| 3806 case sw_value_3: | |
| 3807 ctx->setting_value |= ch << 8; | |
| 3808 state = sw_value_4; | |
| 3809 break; | |
| 3810 | |
| 3811 case sw_value_4: | |
| 3812 ctx->setting_value |= ch; | |
| 3813 state = sw_id; | |
| 3814 | |
| 3815 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3816 "grpc setting: %ui %ui", | |
| 3817 ctx->setting_id, ctx->setting_value); | |
| 3818 | |
| 3819 /* | |
| 3820 * The following settings are defined by the protocol: | |
| 3821 * | |
| 3822 * SETTINGS_HEADER_TABLE_SIZE, SETTINGS_ENABLE_PUSH, | |
| 3823 * SETTINGS_MAX_CONCURRENT_STREAMS, SETTINGS_INITIAL_WINDOW_SIZE, | |
| 3824 * SETTINGS_MAX_FRAME_SIZE, SETTINGS_MAX_HEADER_LIST_SIZE | |
| 3825 * | |
| 3826 * Only SETTINGS_INITIAL_WINDOW_SIZE seems to be needed in | |
| 3827 * a simple client. | |
| 3828 */ | |
| 3829 | |
| 3830 if (ctx->setting_id == 0x04) { | |
| 3831 /* SETTINGS_INITIAL_WINDOW_SIZE */ | |
| 3832 | |
| 3833 if (ctx->setting_value > NGX_HTTP_V2_MAX_WINDOW) { | |
| 3834 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3835 "upstream sent settings frame " | |
| 3836 "with too large initial window size: %ui", | |
| 3837 ctx->setting_value); | |
| 3838 return NGX_ERROR; | |
| 3839 } | |
| 3840 | |
| 3841 window_update = ctx->setting_value | |
| 3842 - ctx->connection->init_window; | |
| 3843 ctx->connection->init_window = ctx->setting_value; | |
| 3844 | |
| 3845 if (ctx->send_window > 0 | |
| 3846 && window_update > (ssize_t) NGX_HTTP_V2_MAX_WINDOW | |
| 3847 - ctx->send_window) | |
| 3848 { | |
| 3849 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3850 "upstream sent settings frame " | |
| 3851 "with too large initial window size: %ui", | |
| 3852 ctx->setting_value); | |
| 3853 return NGX_ERROR; | |
| 3854 } | |
| 3855 | |
| 3856 ctx->send_window += window_update; | |
| 3857 } | |
| 3858 | |
| 3859 break; | |
| 3860 } | |
| 3861 } | |
| 3862 | |
| 3863 ctx->rest -= p - b->pos; | |
| 3864 ctx->frame_state = state; | |
| 3865 b->pos = p; | |
| 3866 | |
| 3867 if (ctx->rest > 0) { | |
| 3868 return NGX_AGAIN; | |
| 3869 } | |
| 3870 | |
| 3871 ctx->state = ngx_http_grpc_st_start; | |
| 3872 | |
| 3873 return ngx_http_grpc_send_settings_ack(r, ctx); | |
| 3874 } | |
| 3875 | |
| 3876 | |
| 3877 static ngx_int_t | |
| 3878 ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
| 3879 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
| 3880 { | |
| 3881 u_char ch, *p, *last; | |
| 3882 enum { | |
| 3883 sw_start = 0, | |
| 3884 sw_data_2, | |
| 3885 sw_data_3, | |
| 3886 sw_data_4, | |
| 3887 sw_data_5, | |
| 3888 sw_data_6, | |
| 3889 sw_data_7, | |
| 3890 sw_data_8 | |
| 3891 } state; | |
| 3892 | |
| 3893 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3894 last = b->last; | |
| 3895 | |
| 3896 } else { | |
| 3897 last = b->pos + ctx->rest; | |
| 3898 } | |
| 3899 | |
| 3900 state = ctx->frame_state; | |
| 3901 | |
| 3902 if (state == sw_start) { | |
| 3903 | |
| 3904 if (ctx->stream_id) { | |
| 3905 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3906 "upstream sent ping frame " | |
| 3907 "with non-zero stream id: %ui", | |
| 3908 ctx->stream_id); | |
| 3909 return NGX_ERROR; | |
| 3910 } | |
| 3911 | |
| 3912 if (ctx->rest != 8) { | |
| 3913 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3914 "upstream sent ping frame " | |
| 3915 "with invalid length: %uz", | |
| 3916 ctx->rest); | |
| 3917 return NGX_ERROR; | |
| 3918 } | |
| 3919 | |
| 3920 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
| 3921 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3922 "upstream sent ping frame with ack flag"); | |
| 3923 return NGX_ERROR; | |
| 3924 } | |
|
7379
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3925 |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3926 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
|
3927 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
|
3928 "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
|
3929 return NGX_ERROR; |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3930 } |
| 7233 | 3931 } |
| 3932 | |
| 3933 for (p = b->pos; p < last; p++) { | |
| 3934 ch = *p; | |
| 3935 | |
| 3936 #if 0 | |
| 3937 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3938 "grpc ping byte: %02Xd s:%d", ch, state); | |
| 3939 #endif | |
| 3940 | |
| 3941 if (state < sw_data_8) { | |
| 3942 ctx->ping_data[state] = ch; | |
| 3943 state++; | |
| 3944 | |
| 3945 } else { | |
| 3946 ctx->ping_data[7] = ch; | |
| 3947 state = sw_start; | |
| 3948 | |
| 3949 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3950 "grpc ping"); | |
| 3951 } | |
| 3952 } | |
| 3953 | |
| 3954 ctx->rest -= p - b->pos; | |
| 3955 ctx->frame_state = state; | |
| 3956 b->pos = p; | |
| 3957 | |
| 3958 if (ctx->rest > 0) { | |
| 3959 return NGX_AGAIN; | |
| 3960 } | |
| 3961 | |
| 3962 ctx->state = ngx_http_grpc_st_start; | |
| 3963 | |
| 3964 return ngx_http_grpc_send_ping_ack(r, ctx); | |
| 3965 } | |
| 3966 | |
| 3967 | |
| 3968 static ngx_int_t | |
| 3969 ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 3970 { | |
| 3971 ngx_chain_t *cl, **ll; | |
| 3972 ngx_http_grpc_frame_t *f; | |
| 3973 | |
| 3974 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3975 "grpc send settings ack"); | |
| 3976 | |
| 3977 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 3978 ll = &cl->next; | |
| 3979 } | |
| 3980 | |
| 3981 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 3982 if (cl == NULL) { | |
| 3983 return NGX_ERROR; | |
| 3984 } | |
| 3985 | |
| 3986 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 3987 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 3988 | |
| 3989 f->length_0 = 0; | |
| 3990 f->length_1 = 0; | |
| 3991 f->length_2 = 0; | |
| 3992 f->type = NGX_HTTP_V2_SETTINGS_FRAME; | |
| 3993 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
| 3994 f->stream_id_0 = 0; | |
| 3995 f->stream_id_1 = 0; | |
| 3996 f->stream_id_2 = 0; | |
| 3997 f->stream_id_3 = 0; | |
| 3998 | |
| 3999 *ll = cl; | |
| 4000 | |
| 4001 return NGX_OK; | |
| 4002 } | |
| 4003 | |
| 4004 | |
| 4005 static ngx_int_t | |
| 4006 ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 4007 { | |
| 4008 ngx_chain_t *cl, **ll; | |
| 4009 ngx_http_grpc_frame_t *f; | |
| 4010 | |
| 4011 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4012 "grpc send ping ack"); | |
| 4013 | |
| 4014 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 4015 ll = &cl->next; | |
| 4016 } | |
| 4017 | |
| 4018 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 4019 if (cl == NULL) { | |
| 4020 return NGX_ERROR; | |
| 4021 } | |
| 4022 | |
| 4023 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 4024 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 4025 | |
| 4026 f->length_0 = 0; | |
| 4027 f->length_1 = 0; | |
| 4028 f->length_2 = 8; | |
| 4029 f->type = NGX_HTTP_V2_PING_FRAME; | |
| 4030 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
| 4031 f->stream_id_0 = 0; | |
| 4032 f->stream_id_1 = 0; | |
| 4033 f->stream_id_2 = 0; | |
| 4034 f->stream_id_3 = 0; | |
| 4035 | |
| 4036 cl->buf->last = ngx_copy(cl->buf->last, ctx->ping_data, 8); | |
| 4037 | |
| 4038 *ll = cl; | |
| 4039 | |
| 4040 return NGX_OK; | |
| 4041 } | |
| 4042 | |
| 4043 | |
| 4044 static ngx_int_t | |
| 4045 ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
| 4046 ngx_http_grpc_ctx_t *ctx) | |
| 4047 { | |
| 4048 size_t n; | |
| 4049 ngx_chain_t *cl, **ll; | |
| 4050 ngx_http_grpc_frame_t *f; | |
| 4051 | |
| 4052 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4053 "grpc send window update: %uz %uz", | |
| 4054 ctx->connection->recv_window, ctx->recv_window); | |
| 4055 | |
| 4056 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 4057 ll = &cl->next; | |
| 4058 } | |
| 4059 | |
| 4060 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 4061 if (cl == NULL) { | |
| 4062 return NGX_ERROR; | |
| 4063 } | |
| 4064 | |
| 4065 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 4066 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 4067 | |
| 4068 f->length_0 = 0; | |
| 4069 f->length_1 = 0; | |
| 4070 f->length_2 = 4; | |
| 4071 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
| 4072 f->flags = 0; | |
| 4073 f->stream_id_0 = 0; | |
| 4074 f->stream_id_1 = 0; | |
| 4075 f->stream_id_2 = 0; | |
| 4076 f->stream_id_3 = 0; | |
| 4077 | |
| 4078 n = NGX_HTTP_V2_MAX_WINDOW - ctx->connection->recv_window; | |
| 4079 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4080 | |
| 4081 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
| 4082 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
| 4083 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
| 4084 *cl->buf->last++ = (u_char) (n & 0xff); | |
| 4085 | |
| 4086 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 4087 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 4088 | |
| 4089 f->length_0 = 0; | |
| 4090 f->length_1 = 0; | |
| 4091 f->length_2 = 4; | |
| 4092 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
| 4093 f->flags = 0; | |
| 4094 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 4095 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 4096 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 4097 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 4098 | |
| 4099 n = NGX_HTTP_V2_MAX_WINDOW - ctx->recv_window; | |
| 4100 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4101 | |
| 4102 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
| 4103 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
| 4104 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
| 4105 *cl->buf->last++ = (u_char) (n & 0xff); | |
| 4106 | |
| 4107 *ll = cl; | |
| 4108 | |
| 4109 return NGX_OK; | |
| 4110 } | |
| 4111 | |
| 4112 | |
| 4113 static ngx_chain_t * | |
| 4114 ngx_http_grpc_get_buf(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 4115 { | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4116 u_char *start; |
| 7233 | 4117 ngx_buf_t *b; |
| 4118 ngx_chain_t *cl; | |
| 4119 | |
| 4120 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
| 4121 if (cl == NULL) { | |
| 4122 return NULL; | |
| 4123 } | |
| 4124 | |
| 4125 b = cl->buf; | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4126 start = b->start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4127 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4128 if (start == NULL) { |
| 7233 | 4129 |
| 4130 /* | |
| 4131 * each buffer is large enough to hold two window update | |
| 4132 * frames in a row | |
| 4133 */ | |
| 4134 | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4135 start = ngx_palloc(r->pool, 2 * sizeof(ngx_http_grpc_frame_t) + 8); |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4136 if (start == NULL) { |
| 7233 | 4137 return NULL; |
| 4138 } | |
| 4139 | |
| 4140 } | |
| 4141 | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4142 ngx_memzero(b, sizeof(ngx_buf_t)); |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4143 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4144 b->start = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4145 b->pos = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4146 b->last = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4147 b->end = start + 2 * sizeof(ngx_http_grpc_frame_t) + 8; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4148 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4149 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4150 b->temporary = 1; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4151 b->flush = 1; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
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7271
diff
changeset
|
4152 |
| 7233 | 4153 return cl; |
| 4154 } | |
| 4155 | |
| 4156 | |
| 4157 static ngx_http_grpc_ctx_t * | |
| 4158 ngx_http_grpc_get_ctx(ngx_http_request_t *r) | |
| 4159 { | |
| 4160 ngx_http_grpc_ctx_t *ctx; | |
| 4161 ngx_http_upstream_t *u; | |
| 4162 | |
| 4163 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
| 4164 | |
| 4165 if (ctx->connection == NULL) { | |
| 4166 u = r->upstream; | |
| 4167 | |
| 4168 if (ngx_http_grpc_get_connection_data(r, ctx, &u->peer) != NGX_OK) { | |
| 4169 return NULL; | |
| 4170 } | |
| 4171 } | |
| 4172 | |
| 4173 return ctx; | |
| 4174 } | |
| 4175 | |
| 4176 | |
| 4177 static ngx_int_t | |
| 4178 ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
| 4179 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc) | |
| 4180 { | |
| 4181 ngx_connection_t *c; | |
| 4182 ngx_pool_cleanup_t *cln; | |
| 4183 | |
| 4184 c = pc->connection; | |
| 4185 | |
| 4186 if (pc->cached) { | |
| 4187 | |
| 4188 /* | |
| 4189 * for cached connections, connection data can be found | |
| 4190 * in the cleanup handler | |
| 4191 */ | |
| 4192 | |
| 4193 for (cln = c->pool->cleanup; cln; cln = cln->next) { | |
| 4194 if (cln->handler == ngx_http_grpc_cleanup) { | |
| 4195 ctx->connection = cln->data; | |
| 4196 break; | |
| 4197 } | |
| 4198 } | |
| 4199 | |
| 4200 if (ctx->connection == NULL) { | |
| 4201 ngx_log_error(NGX_LOG_ERR, c->log, 0, | |
| 4202 "no connection data found for " | |
| 4203 "keepalive http2 connection"); | |
| 4204 return NGX_ERROR; | |
| 4205 } | |
| 4206 | |
| 4207 ctx->send_window = ctx->connection->init_window; | |
| 4208 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4209 | |
| 4210 ctx->connection->last_stream_id += 2; | |
| 4211 ctx->id = ctx->connection->last_stream_id; | |
| 4212 | |
| 4213 return NGX_OK; | |
| 4214 } | |
| 4215 | |
| 4216 cln = ngx_pool_cleanup_add(c->pool, sizeof(ngx_http_grpc_conn_t)); | |
| 4217 if (cln == NULL) { | |
| 4218 return NGX_ERROR; | |
| 4219 } | |
| 4220 | |
| 4221 cln->handler = ngx_http_grpc_cleanup; | |
| 4222 ctx->connection = cln->data; | |
| 4223 | |
| 4224 ctx->connection->init_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4225 ctx->connection->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4226 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4227 | |
| 4228 ctx->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4229 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4230 | |
| 4231 ctx->id = 1; | |
| 4232 ctx->connection->last_stream_id = 1; | |
| 4233 | |
| 4234 return NGX_OK; | |
| 4235 } | |
| 4236 | |
| 4237 | |
| 4238 static void | |
| 4239 ngx_http_grpc_cleanup(void *data) | |
| 4240 { | |
| 4241 #if 0 | |
| 4242 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 4243 "grpc cleanup"); | |
| 4244 #endif | |
| 4245 return; | |
| 4246 } | |
| 4247 | |
| 4248 | |
| 4249 static void | |
| 4250 ngx_http_grpc_abort_request(ngx_http_request_t *r) | |
| 4251 { | |
| 4252 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4253 "abort grpc request"); | |
| 4254 return; | |
| 4255 } | |
| 4256 | |
| 4257 | |
| 4258 static void | |
| 4259 ngx_http_grpc_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
| 4260 { | |
| 4261 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4262 "finalize grpc request"); | |
| 4263 return; | |
| 4264 } | |
| 4265 | |
| 4266 | |
|
7234
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4267 static ngx_int_t |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4268 ngx_http_grpc_internal_trailers_variable(ngx_http_request_t *r, |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4269 ngx_http_variable_value_t *v, uintptr_t data) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4270 { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4271 ngx_table_elt_t *te; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4272 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4273 te = r->headers_in.te; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4274 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4275 if (te == NULL) { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4276 v->not_found = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4277 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4278 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4279 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4280 if (ngx_strlcasestrn(te->value.data, te->value.data + te->value.len, |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4281 (u_char *) "trailers", 8 - 1) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4282 == NULL) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4283 { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4284 v->not_found = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4285 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4286 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4287 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4288 v->valid = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4289 v->no_cacheable = 0; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4290 v->not_found = 0; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4291 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4292 v->data = (u_char *) "trailers"; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4293 v->len = sizeof("trailers") - 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4294 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4295 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4296 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4297 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4298 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4299 static ngx_int_t |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4300 ngx_http_grpc_add_variables(ngx_conf_t *cf) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4301 { |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4302 ngx_http_variable_t *var, *v; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4303 |
|
c693daca57f7
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4304 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
|
4305 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
|
4306 if (var == NULL) { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
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7233
diff
changeset
|
4307 return NGX_ERROR; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4308 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4309 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4310 var->get_handler = v->get_handler; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4311 var->data = v->data; |
|
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 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4314 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4315 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4316 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4317 |
| 7233 | 4318 static void * |
| 4319 ngx_http_grpc_create_loc_conf(ngx_conf_t *cf) | |
| 4320 { | |
| 4321 ngx_http_grpc_loc_conf_t *conf; | |
| 4322 | |
| 4323 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_grpc_loc_conf_t)); | |
| 4324 if (conf == NULL) { | |
| 4325 return NULL; | |
| 4326 } | |
| 4327 | |
| 4328 /* | |
| 4329 * set by ngx_pcalloc(): | |
| 4330 * | |
| 4331 * conf->upstream.ignore_headers = 0; | |
| 4332 * conf->upstream.next_upstream = 0; | |
| 4333 * conf->upstream.hide_headers_hash = { NULL, 0 }; | |
| 4334 * | |
| 4335 * conf->headers.lengths = NULL; | |
| 4336 * conf->headers.values = NULL; | |
| 4337 * conf->headers.hash = { NULL, 0 }; | |
| 4338 * conf->host = { 0, NULL }; | |
| 4339 * conf->host_set = 0; | |
| 4340 * conf->ssl = 0; | |
| 4341 * conf->ssl_protocols = 0; | |
| 4342 * conf->ssl_ciphers = { 0, NULL }; | |
| 4343 * conf->ssl_trusted_certificate = { 0, NULL }; | |
| 4344 * conf->ssl_crl = { 0, NULL }; | |
| 4345 * conf->ssl_certificate = { 0, NULL }; | |
| 4346 * conf->ssl_certificate_key = { 0, NULL }; | |
| 4347 */ | |
| 4348 | |
| 4349 conf->upstream.local = NGX_CONF_UNSET_PTR; | |
|
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4350 conf->upstream.socket_keepalive = NGX_CONF_UNSET; |
| 7233 | 4351 conf->upstream.next_upstream_tries = NGX_CONF_UNSET_UINT; |
| 4352 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; | |
| 4353 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
| 4354 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
| 4355 conf->upstream.next_upstream_timeout = NGX_CONF_UNSET_MSEC; | |
| 4356 | |
| 4357 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
| 4358 | |
| 4359 conf->upstream.hide_headers = NGX_CONF_UNSET_PTR; | |
| 4360 conf->upstream.pass_headers = NGX_CONF_UNSET_PTR; | |
| 4361 | |
| 4362 conf->upstream.intercept_errors = NGX_CONF_UNSET; | |
| 4363 | |
| 4364 #if (NGX_HTTP_SSL) | |
| 4365 conf->upstream.ssl_session_reuse = NGX_CONF_UNSET; | |
|
7831
bdd4d89370a7
Changed complex value slots to use NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7803
diff
changeset
|
4366 conf->upstream.ssl_name = NGX_CONF_UNSET_PTR; |
| 7233 | 4367 conf->upstream.ssl_server_name = NGX_CONF_UNSET; |
| 4368 conf->upstream.ssl_verify = NGX_CONF_UNSET; | |
| 4369 conf->ssl_verify_depth = NGX_CONF_UNSET_UINT; | |
| 4370 conf->ssl_passwords = NGX_CONF_UNSET_PTR; | |
|
7730
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4371 conf->ssl_conf_commands = NGX_CONF_UNSET_PTR; |
| 7233 | 4372 #endif |
| 4373 | |
| 4374 /* the hardcoded values */ | |
| 4375 conf->upstream.cyclic_temp_file = 0; | |
| 4376 conf->upstream.buffering = 0; | |
| 4377 conf->upstream.ignore_client_abort = 0; | |
| 4378 conf->upstream.send_lowat = 0; | |
| 4379 conf->upstream.bufs.num = 0; | |
| 4380 conf->upstream.busy_buffers_size = 0; | |
| 4381 conf->upstream.max_temp_file_size = 0; | |
| 4382 conf->upstream.temp_file_write_size = 0; | |
| 4383 conf->upstream.pass_request_headers = 1; | |
| 4384 conf->upstream.pass_request_body = 1; | |
| 4385 conf->upstream.force_ranges = 0; | |
| 4386 conf->upstream.pass_trailers = 1; | |
| 4387 conf->upstream.preserve_output = 1; | |
| 4388 | |
|
7728
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4389 conf->headers_source = NGX_CONF_UNSET_PTR; |
|
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4390 |
| 7233 | 4391 ngx_str_set(&conf->upstream.module, "grpc"); |
| 4392 | |
| 4393 return conf; | |
| 4394 } | |
| 4395 | |
| 4396 | |
| 4397 static char * | |
| 4398 ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 4399 { | |
| 4400 ngx_http_grpc_loc_conf_t *prev = parent; | |
| 4401 ngx_http_grpc_loc_conf_t *conf = child; | |
| 4402 | |
| 4403 ngx_int_t rc; | |
| 4404 ngx_hash_init_t hash; | |
| 4405 ngx_http_core_loc_conf_t *clcf; | |
| 4406 | |
| 4407 ngx_conf_merge_ptr_value(conf->upstream.local, | |
| 4408 prev->upstream.local, NULL); | |
| 4409 | |
|
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4410 ngx_conf_merge_value(conf->upstream.socket_keepalive, |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4411 prev->upstream.socket_keepalive, 0); |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4412 |
| 7233 | 4413 ngx_conf_merge_uint_value(conf->upstream.next_upstream_tries, |
| 4414 prev->upstream.next_upstream_tries, 0); | |
| 4415 | |
| 4416 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, | |
| 4417 prev->upstream.connect_timeout, 60000); | |
| 4418 | |
| 4419 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
| 4420 prev->upstream.send_timeout, 60000); | |
| 4421 | |
| 4422 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
| 4423 prev->upstream.read_timeout, 60000); | |
| 4424 | |
| 4425 ngx_conf_merge_msec_value(conf->upstream.next_upstream_timeout, | |
| 4426 prev->upstream.next_upstream_timeout, 0); | |
| 4427 | |
| 4428 ngx_conf_merge_size_value(conf->upstream.buffer_size, | |
| 4429 prev->upstream.buffer_size, | |
| 4430 (size_t) ngx_pagesize); | |
| 4431 | |
| 4432 ngx_conf_merge_bitmask_value(conf->upstream.ignore_headers, | |
| 4433 prev->upstream.ignore_headers, | |
| 4434 NGX_CONF_BITMASK_SET); | |
| 4435 | |
| 4436 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
| 4437 prev->upstream.next_upstream, | |
| 4438 (NGX_CONF_BITMASK_SET | |
| 4439 |NGX_HTTP_UPSTREAM_FT_ERROR | |
| 4440 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
| 4441 | |
| 4442 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { | |
| 4443 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
| 4444 |NGX_HTTP_UPSTREAM_FT_OFF; | |
| 4445 } | |
| 4446 | |
| 4447 ngx_conf_merge_value(conf->upstream.intercept_errors, | |
| 4448 prev->upstream.intercept_errors, 0); | |
| 4449 | |
| 4450 #if (NGX_HTTP_SSL) | |
| 4451 | |
| 4452 ngx_conf_merge_value(conf->upstream.ssl_session_reuse, | |
| 4453 prev->upstream.ssl_session_reuse, 1); | |
| 4454 | |
| 4455 ngx_conf_merge_bitmask_value(conf->ssl_protocols, prev->ssl_protocols, | |
| 4456 (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1 | |
| 4457 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); | |
| 4458 | |
| 4459 ngx_conf_merge_str_value(conf->ssl_ciphers, prev->ssl_ciphers, | |
| 4460 "DEFAULT"); | |
| 4461 | |
|
7831
bdd4d89370a7
Changed complex value slots to use NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7803
diff
changeset
|
4462 ngx_conf_merge_ptr_value(conf->upstream.ssl_name, |
|
bdd4d89370a7
Changed complex value slots to use NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7803
diff
changeset
|
4463 prev->upstream.ssl_name, NULL); |
| 7233 | 4464 ngx_conf_merge_value(conf->upstream.ssl_server_name, |
| 4465 prev->upstream.ssl_server_name, 0); | |
| 4466 ngx_conf_merge_value(conf->upstream.ssl_verify, | |
| 4467 prev->upstream.ssl_verify, 0); | |
| 4468 ngx_conf_merge_uint_value(conf->ssl_verify_depth, | |
| 4469 prev->ssl_verify_depth, 1); | |
| 4470 ngx_conf_merge_str_value(conf->ssl_trusted_certificate, | |
| 4471 prev->ssl_trusted_certificate, ""); | |
| 4472 ngx_conf_merge_str_value(conf->ssl_crl, prev->ssl_crl, ""); | |
| 4473 | |
| 4474 ngx_conf_merge_str_value(conf->ssl_certificate, | |
| 4475 prev->ssl_certificate, ""); | |
| 4476 ngx_conf_merge_str_value(conf->ssl_certificate_key, | |
| 4477 prev->ssl_certificate_key, ""); | |
| 4478 ngx_conf_merge_ptr_value(conf->ssl_passwords, prev->ssl_passwords, NULL); | |
| 4479 | |
|
7730
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4480 ngx_conf_merge_ptr_value(conf->ssl_conf_commands, |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4481 prev->ssl_conf_commands, NULL); |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4482 |
| 7233 | 4483 if (conf->ssl && ngx_http_grpc_set_ssl(cf, conf) != NGX_OK) { |
| 4484 return NGX_CONF_ERROR; | |
| 4485 } | |
| 4486 | |
| 4487 #endif | |
| 4488 | |
| 4489 hash.max_size = 512; | |
| 4490 hash.bucket_size = ngx_align(64, ngx_cacheline_size); | |
| 4491 hash.name = "grpc_headers_hash"; | |
| 4492 | |
| 4493 if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream, | |
| 4494 &prev->upstream, ngx_http_grpc_hide_headers, &hash) | |
| 4495 != NGX_OK) | |
| 4496 { | |
| 4497 return NGX_CONF_ERROR; | |
| 4498 } | |
| 4499 | |
| 4500 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
| 4501 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4502 if (clcf->noname |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4503 && 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
|
4504 { |
| 7233 | 4505 conf->upstream.upstream = prev->upstream.upstream; |
| 4506 conf->host = prev->host; | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4507 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4508 conf->grpc_lengths = prev->grpc_lengths; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4509 conf->grpc_values = prev->grpc_values; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4510 |
| 7233 | 4511 #if (NGX_HTTP_SSL) |
| 4512 conf->upstream.ssl = prev->upstream.ssl; | |
| 4513 #endif | |
| 4514 } | |
| 4515 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4516 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
|
4517 && (conf->upstream.upstream || conf->grpc_lengths)) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4518 { |
| 7233 | 4519 clcf->handler = ngx_http_grpc_handler; |
| 4520 } | |
| 4521 | |
|
7728
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4522 ngx_conf_merge_ptr_value(conf->headers_source, prev->headers_source, NULL); |
|
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4523 |
|
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4524 if (conf->headers_source == prev->headers_source) { |
| 7233 | 4525 conf->headers = prev->headers; |
| 4526 conf->host_set = prev->host_set; | |
| 4527 } | |
| 4528 | |
| 4529 rc = ngx_http_grpc_init_headers(cf, conf, &conf->headers, | |
| 4530 ngx_http_grpc_headers); | |
| 4531 if (rc != NGX_OK) { | |
| 4532 return NGX_CONF_ERROR; | |
| 4533 } | |
| 4534 | |
| 4535 /* | |
| 4536 * special handling to preserve conf->headers in the "http" section | |
| 4537 * to inherit it to all servers | |
| 4538 */ | |
| 4539 | |
| 4540 if (prev->headers.hash.buckets == NULL | |
| 4541 && conf->headers_source == prev->headers_source) | |
| 4542 { | |
| 4543 prev->headers = conf->headers; | |
| 4544 prev->host_set = conf->host_set; | |
| 4545 } | |
| 4546 | |
| 4547 return NGX_CONF_OK; | |
| 4548 } | |
| 4549 | |
| 4550 | |
| 4551 static ngx_int_t | |
| 4552 ngx_http_grpc_init_headers(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *conf, | |
| 4553 ngx_http_grpc_headers_t *headers, ngx_keyval_t *default_headers) | |
| 4554 { | |
| 4555 u_char *p; | |
| 4556 size_t size; | |
| 4557 uintptr_t *code; | |
| 4558 ngx_uint_t i; | |
| 4559 ngx_array_t headers_names, headers_merged; | |
| 4560 ngx_keyval_t *src, *s, *h; | |
| 4561 ngx_hash_key_t *hk; | |
| 4562 ngx_hash_init_t hash; | |
| 4563 ngx_http_script_compile_t sc; | |
| 4564 ngx_http_script_copy_code_t *copy; | |
| 4565 | |
| 4566 if (headers->hash.buckets) { | |
| 4567 return NGX_OK; | |
| 4568 } | |
| 4569 | |
| 4570 if (ngx_array_init(&headers_names, cf->temp_pool, 4, sizeof(ngx_hash_key_t)) | |
| 4571 != NGX_OK) | |
| 4572 { | |
| 4573 return NGX_ERROR; | |
| 4574 } | |
| 4575 | |
| 4576 if (ngx_array_init(&headers_merged, cf->temp_pool, 4, sizeof(ngx_keyval_t)) | |
| 4577 != NGX_OK) | |
| 4578 { | |
| 4579 return NGX_ERROR; | |
| 4580 } | |
| 4581 | |
| 4582 headers->lengths = ngx_array_create(cf->pool, 64, 1); | |
| 4583 if (headers->lengths == NULL) { | |
| 4584 return NGX_ERROR; | |
| 4585 } | |
| 4586 | |
| 4587 headers->values = ngx_array_create(cf->pool, 512, 1); | |
| 4588 if (headers->values == NULL) { | |
| 4589 return NGX_ERROR; | |
| 4590 } | |
| 4591 | |
| 4592 if (conf->headers_source) { | |
| 4593 | |
| 4594 src = conf->headers_source->elts; | |
| 4595 for (i = 0; i < conf->headers_source->nelts; i++) { | |
| 4596 | |
| 4597 if (src[i].key.len == 4 | |
| 4598 && ngx_strncasecmp(src[i].key.data, (u_char *) "Host", 4) == 0) | |
| 4599 { | |
| 4600 conf->host_set = 1; | |
| 4601 } | |
| 4602 | |
| 4603 s = ngx_array_push(&headers_merged); | |
| 4604 if (s == NULL) { | |
| 4605 return NGX_ERROR; | |
| 4606 } | |
| 4607 | |
| 4608 *s = src[i]; | |
| 4609 } | |
| 4610 } | |
| 4611 | |
| 4612 h = default_headers; | |
| 4613 | |
| 4614 while (h->key.len) { | |
| 4615 | |
| 4616 src = headers_merged.elts; | |
| 4617 for (i = 0; i < headers_merged.nelts; i++) { | |
| 4618 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) { | |
| 4619 goto next; | |
| 4620 } | |
| 4621 } | |
| 4622 | |
| 4623 s = ngx_array_push(&headers_merged); | |
| 4624 if (s == NULL) { | |
| 4625 return NGX_ERROR; | |
| 4626 } | |
| 4627 | |
| 4628 *s = *h; | |
| 4629 | |
| 4630 next: | |
| 4631 | |
| 4632 h++; | |
| 4633 } | |
| 4634 | |
| 4635 | |
| 4636 src = headers_merged.elts; | |
| 4637 for (i = 0; i < headers_merged.nelts; i++) { | |
| 4638 | |
| 4639 hk = ngx_array_push(&headers_names); | |
| 4640 if (hk == NULL) { | |
| 4641 return NGX_ERROR; | |
| 4642 } | |
| 4643 | |
| 4644 hk->key = src[i].key; | |
| 4645 hk->key_hash = ngx_hash_key_lc(src[i].key.data, src[i].key.len); | |
| 4646 hk->value = (void *) 1; | |
| 4647 | |
| 4648 if (src[i].value.len == 0) { | |
| 4649 continue; | |
| 4650 } | |
| 4651 | |
| 4652 copy = ngx_array_push_n(headers->lengths, | |
| 4653 sizeof(ngx_http_script_copy_code_t)); | |
| 4654 if (copy == NULL) { | |
| 4655 return NGX_ERROR; | |
| 4656 } | |
| 4657 | |
|
7271
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
7249
diff
changeset
|
4658 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
|
4659 ngx_http_script_copy_len_code; |
| 7233 | 4660 copy->len = src[i].key.len; |
| 4661 | |
| 4662 size = (sizeof(ngx_http_script_copy_code_t) | |
| 4663 + src[i].key.len + sizeof(uintptr_t) - 1) | |
| 4664 & ~(sizeof(uintptr_t) - 1); | |
| 4665 | |
| 4666 copy = ngx_array_push_n(headers->values, size); | |
| 4667 if (copy == NULL) { | |
| 4668 return NGX_ERROR; | |
| 4669 } | |
| 4670 | |
| 4671 copy->code = ngx_http_script_copy_code; | |
| 4672 copy->len = src[i].key.len; | |
| 4673 | |
| 4674 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); | |
| 4675 ngx_memcpy(p, src[i].key.data, src[i].key.len); | |
| 4676 | |
| 4677 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
| 4678 | |
| 4679 sc.cf = cf; | |
| 4680 sc.source = &src[i].value; | |
| 4681 sc.flushes = &headers->flushes; | |
| 4682 sc.lengths = &headers->lengths; | |
| 4683 sc.values = &headers->values; | |
| 4684 | |
| 4685 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
| 4686 return NGX_ERROR; | |
| 4687 } | |
| 4688 | |
| 4689 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
| 4690 if (code == NULL) { | |
| 4691 return NGX_ERROR; | |
| 4692 } | |
| 4693 | |
| 4694 *code = (uintptr_t) NULL; | |
| 4695 | |
| 4696 code = ngx_array_push_n(headers->values, sizeof(uintptr_t)); | |
| 4697 if (code == NULL) { | |
| 4698 return NGX_ERROR; | |
| 4699 } | |
| 4700 | |
| 4701 *code = (uintptr_t) NULL; | |
| 4702 } | |
| 4703 | |
| 4704 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
| 4705 if (code == NULL) { | |
| 4706 return NGX_ERROR; | |
| 4707 } | |
| 4708 | |
| 4709 *code = (uintptr_t) NULL; | |
| 4710 | |
| 4711 | |
| 4712 hash.hash = &headers->hash; | |
| 4713 hash.key = ngx_hash_key_lc; | |
| 4714 hash.max_size = 512; | |
| 4715 hash.bucket_size = 64; | |
| 4716 hash.name = "grpc_headers_hash"; | |
| 4717 hash.pool = cf->pool; | |
| 4718 hash.temp_pool = NULL; | |
| 4719 | |
| 4720 return ngx_hash_init(&hash, headers_names.elts, headers_names.nelts); | |
| 4721 } | |
| 4722 | |
| 4723 | |
| 4724 static char * | |
| 4725 ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 4726 { | |
| 4727 ngx_http_grpc_loc_conf_t *glcf = conf; | |
| 4728 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4729 size_t add; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4730 ngx_str_t *value, *url; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4731 ngx_url_t u; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4732 ngx_uint_t n; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4733 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
|
4734 ngx_http_script_compile_t sc; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4735 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4736 if (glcf->upstream.upstream || glcf->grpc_lengths) { |
| 7233 | 4737 return "is duplicate"; |
| 4738 } | |
| 4739 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4740 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
|
4741 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4742 clcf->handler = ngx_http_grpc_handler; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4743 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4744 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
|
4745 clcf->auto_redirect = 1; |
|
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 |
| 7233 | 4748 value = cf->args->elts; |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4749 |
| 7233 | 4750 url = &value[1]; |
| 4751 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4752 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
|
4753 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4754 if (n) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4755 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4756 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
|
4757 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4758 sc.cf = cf; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4759 sc.source = url; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4760 sc.lengths = &glcf->grpc_lengths; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4761 sc.values = &glcf->grpc_values; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4762 sc.variables = n; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4763 sc.complete_lengths = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4764 sc.complete_values = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4765 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4766 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
|
4767 return NGX_CONF_ERROR; |
|
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 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4770 #if (NGX_HTTP_SSL) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4771 glcf->ssl = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4772 #endif |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4773 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4774 return NGX_CONF_OK; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4775 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4776 |
| 7233 | 4777 if (ngx_strncasecmp(url->data, (u_char *) "grpc://", 7) == 0) { |
| 4778 add = 7; | |
| 4779 | |
| 4780 } else if (ngx_strncasecmp(url->data, (u_char *) "grpcs://", 8) == 0) { | |
| 4781 | |
| 4782 #if (NGX_HTTP_SSL) | |
| 4783 glcf->ssl = 1; | |
| 4784 | |
| 4785 add = 8; | |
| 4786 #else | |
| 4787 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 4788 "grpcs protocol requires SSL support"); | |
| 4789 return NGX_CONF_ERROR; | |
| 4790 #endif | |
| 4791 | |
| 4792 } else { | |
| 4793 add = 0; | |
| 4794 } | |
| 4795 | |
| 4796 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 4797 | |
| 4798 u.url.len = url->len - add; | |
| 4799 u.url.data = url->data + add; | |
| 4800 u.no_resolve = 1; | |
| 4801 | |
| 4802 glcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); | |
| 4803 if (glcf->upstream.upstream == NULL) { | |
| 4804 return NGX_CONF_ERROR; | |
| 4805 } | |
| 4806 | |
| 4807 if (u.family != AF_UNIX) { | |
| 4808 | |
| 4809 if (u.no_port) { | |
| 4810 glcf->host = u.host; | |
| 4811 | |
| 4812 } else { | |
| 4813 glcf->host.len = u.host.len + 1 + u.port_text.len; | |
| 4814 glcf->host.data = u.host.data; | |
| 4815 } | |
| 4816 | |
| 4817 } else { | |
| 4818 ngx_str_set(&glcf->host, "localhost"); | |
| 4819 } | |
| 4820 | |
| 4821 return NGX_CONF_OK; | |
| 4822 } | |
| 4823 | |
| 4824 | |
| 4825 #if (NGX_HTTP_SSL) | |
| 4826 | |
| 4827 static char * | |
| 4828 ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 4829 { | |
| 4830 ngx_http_grpc_loc_conf_t *glcf = conf; | |
| 4831 | |
| 4832 ngx_str_t *value; | |
| 4833 | |
| 4834 if (glcf->ssl_passwords != NGX_CONF_UNSET_PTR) { | |
| 4835 return "is duplicate"; | |
| 4836 } | |
| 4837 | |
| 4838 value = cf->args->elts; | |
| 4839 | |
| 4840 glcf->ssl_passwords = ngx_ssl_read_password_file(cf, &value[1]); | |
| 4841 | |
| 4842 if (glcf->ssl_passwords == NULL) { | |
| 4843 return NGX_CONF_ERROR; | |
| 4844 } | |
| 4845 | |
| 4846 return NGX_CONF_OK; | |
| 4847 } | |
| 4848 | |
| 4849 | |
|
7730
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4850 static char * |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4851 ngx_http_grpc_ssl_conf_command_check(ngx_conf_t *cf, void *post, void *data) |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4852 { |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4853 #ifndef SSL_CONF_FLAG_FILE |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4854 return "is not supported on this platform"; |
|
7787
7ce28b4cc57e
SSL: fixed build by Sun C with old OpenSSL versions.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7746
diff
changeset
|
4855 #else |
|
7ce28b4cc57e
SSL: fixed build by Sun C with old OpenSSL versions.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7746
diff
changeset
|
4856 return NGX_CONF_OK; |
|
7730
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4857 #endif |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4858 } |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4859 |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4860 |
| 7233 | 4861 static ngx_int_t |
| 4862 ngx_http_grpc_set_ssl(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *glcf) | |
| 4863 { | |
| 4864 ngx_pool_cleanup_t *cln; | |
| 4865 | |
| 4866 glcf->upstream.ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t)); | |
| 4867 if (glcf->upstream.ssl == NULL) { | |
| 4868 return NGX_ERROR; | |
| 4869 } | |
| 4870 | |
| 4871 glcf->upstream.ssl->log = cf->log; | |
| 4872 | |
| 4873 if (ngx_ssl_create(glcf->upstream.ssl, glcf->ssl_protocols, NULL) | |
| 4874 != NGX_OK) | |
| 4875 { | |
| 4876 return NGX_ERROR; | |
| 4877 } | |
| 4878 | |
| 4879 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
| 4880 if (cln == NULL) { | |
|
7473
8981dbb12254
SSL: fixed potential leak on memory allocation errors.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7379
diff
changeset
|
4881 ngx_ssl_cleanup_ctx(glcf->upstream.ssl); |
| 7233 | 4882 return NGX_ERROR; |
| 4883 } | |
| 4884 | |
| 4885 cln->handler = ngx_ssl_cleanup_ctx; | |
| 4886 cln->data = glcf->upstream.ssl; | |
| 4887 | |
| 4888 if (glcf->ssl_certificate.len) { | |
| 4889 | |
| 4890 if (glcf->ssl_certificate_key.len == 0) { | |
| 4891 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4892 "no \"grpc_ssl_certificate_key\" is defined " | |
| 4893 "for certificate \"%V\"", &glcf->ssl_certificate); | |
| 4894 return NGX_ERROR; | |
| 4895 } | |
| 4896 | |
| 4897 if (ngx_ssl_certificate(cf, glcf->upstream.ssl, &glcf->ssl_certificate, | |
| 4898 &glcf->ssl_certificate_key, glcf->ssl_passwords) | |
| 4899 != NGX_OK) | |
| 4900 { | |
| 4901 return NGX_ERROR; | |
| 4902 } | |
| 4903 } | |
| 4904 | |
| 4905 if (ngx_ssl_ciphers(cf, glcf->upstream.ssl, &glcf->ssl_ciphers, 0) | |
| 4906 != NGX_OK) | |
| 4907 { | |
| 4908 return NGX_ERROR; | |
| 4909 } | |
| 4910 | |
| 4911 if (glcf->upstream.ssl_verify) { | |
| 4912 if (glcf->ssl_trusted_certificate.len == 0) { | |
| 4913 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4914 "no grpc_ssl_trusted_certificate for grpc_ssl_verify"); | |
| 4915 return NGX_ERROR; | |
| 4916 } | |
| 4917 | |
| 4918 if (ngx_ssl_trusted_certificate(cf, glcf->upstream.ssl, | |
| 4919 &glcf->ssl_trusted_certificate, | |
| 4920 glcf->ssl_verify_depth) | |
| 4921 != NGX_OK) | |
| 4922 { | |
| 4923 return NGX_ERROR; | |
| 4924 } | |
| 4925 | |
| 4926 if (ngx_ssl_crl(cf, glcf->upstream.ssl, &glcf->ssl_crl) != NGX_OK) { | |
| 4927 return NGX_ERROR; | |
| 4928 } | |
| 4929 } | |
| 4930 | |
|
7320
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4931 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
|
4932 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
|
4933 != NGX_OK) |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4934 { |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4935 return NGX_ERROR; |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4936 } |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4937 |
| 7233 | 4938 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
| 4939 | |
| 4940 if (SSL_CTX_set_alpn_protos(glcf->upstream.ssl->ctx, | |
| 4941 (u_char *) "\x02h2", 3) | |
| 4942 != 0) | |
| 4943 { | |
| 4944 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4945 "SSL_CTX_set_alpn_protos() failed"); | |
| 4946 return NGX_ERROR; | |
| 4947 } | |
| 4948 | |
| 4949 #endif | |
| 4950 | |
|
7730
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4951 if (ngx_ssl_conf_commands(cf, glcf->upstream.ssl, glcf->ssl_conf_commands) |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4952 != NGX_OK) |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4953 { |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4954 return NGX_ERROR; |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4955 } |
|
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4956 |
| 7233 | 4957 return NGX_OK; |
| 4958 } | |
| 4959 | |
| 4960 #endif |