Mercurial > hg > nginx
annotate src/http/modules/ngx_http_grpc_module.c @ 7646:2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
As per https://tools.ietf.org/html/rfc7540#section-8.1,
: A server can send a complete response prior to the client
: sending an entire request if the response does not depend on
: any portion of the request that has not been sent and
: received. When this is true, a server MAY request that the
: client abort transmission of a request without error by
: sending a RST_STREAM with an error code of NO_ERROR after
: sending a complete response (i.e., a frame with the
: END_STREAM flag). Clients MUST NOT discard responses as a
: result of receiving such a RST_STREAM, though clients can
: always discard responses at their discretion for other
: reasons.
Previously, RST_STREAM(NO_ERROR) received from upstream after
a frame with the END_STREAM flag was incorrectly treated as an
error. Now, a single RST_STREAM(NO_ERROR) is properly handled.
This fixes problems observed with modern grpc-c [1], as well
as with the Go gRPC module.
[1] https://github.com/grpc/grpc/pull/1661
| author | Ruslan Ermilov <ru@nginx.com> |
|---|---|
| date | Thu, 23 Apr 2020 15:10:24 +0300 |
| parents | 6439ef81e37d |
| children | 716eddd74bc2 |
| rev | line source |
|---|---|
| 7233 | 1 |
| 2 /* | |
| 3 * Copyright (C) Maxim Dounin | |
| 4 * Copyright (C) Nginx, Inc. | |
| 5 */ | |
| 6 | |
| 7 | |
| 8 #include <ngx_config.h> | |
| 9 #include <ngx_core.h> | |
| 10 #include <ngx_http.h> | |
| 11 | |
| 12 | |
| 13 typedef struct { | |
| 14 ngx_array_t *flushes; | |
| 15 ngx_array_t *lengths; | |
| 16 ngx_array_t *values; | |
| 17 ngx_hash_t hash; | |
| 18 } ngx_http_grpc_headers_t; | |
| 19 | |
| 20 | |
| 21 typedef struct { | |
| 22 ngx_http_upstream_conf_t upstream; | |
| 23 | |
| 24 ngx_http_grpc_headers_t headers; | |
| 25 ngx_array_t *headers_source; | |
| 26 | |
| 27 ngx_str_t host; | |
| 28 ngx_uint_t host_set; | |
| 29 | |
|
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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; | |
| 43 #endif | |
| 44 } ngx_http_grpc_loc_conf_t; | |
| 45 | |
| 46 | |
| 47 typedef enum { | |
| 48 ngx_http_grpc_st_start = 0, | |
| 49 ngx_http_grpc_st_length_2, | |
| 50 ngx_http_grpc_st_length_3, | |
| 51 ngx_http_grpc_st_type, | |
| 52 ngx_http_grpc_st_flags, | |
| 53 ngx_http_grpc_st_stream_id, | |
| 54 ngx_http_grpc_st_stream_id_2, | |
| 55 ngx_http_grpc_st_stream_id_3, | |
| 56 ngx_http_grpc_st_stream_id_4, | |
| 57 ngx_http_grpc_st_payload, | |
| 58 ngx_http_grpc_st_padding | |
| 59 } ngx_http_grpc_state_e; | |
| 60 | |
| 61 | |
| 62 typedef struct { | |
| 63 size_t init_window; | |
| 64 size_t send_window; | |
| 65 size_t recv_window; | |
| 66 ngx_uint_t last_stream_id; | |
| 67 } ngx_http_grpc_conn_t; | |
| 68 | |
| 69 | |
| 70 typedef struct { | |
| 71 ngx_http_grpc_state_e state; | |
| 72 ngx_uint_t frame_state; | |
| 73 ngx_uint_t fragment_state; | |
| 74 | |
| 75 ngx_chain_t *in; | |
| 76 ngx_chain_t *out; | |
| 77 ngx_chain_t *free; | |
| 78 ngx_chain_t *busy; | |
| 79 | |
| 80 ngx_http_grpc_conn_t *connection; | |
| 81 | |
| 82 ngx_uint_t id; | |
| 83 | |
|
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84 ngx_uint_t pings; |
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85 ngx_uint_t settings; |
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86 |
| 7233 | 87 ssize_t send_window; |
| 88 size_t recv_window; | |
| 89 | |
| 90 size_t rest; | |
| 91 ngx_uint_t stream_id; | |
| 92 u_char type; | |
| 93 u_char flags; | |
| 94 u_char padding; | |
| 95 | |
| 96 ngx_uint_t error; | |
| 97 ngx_uint_t window_update; | |
| 98 | |
| 99 ngx_uint_t setting_id; | |
| 100 ngx_uint_t setting_value; | |
| 101 | |
| 102 u_char ping_data[8]; | |
| 103 | |
| 104 ngx_uint_t index; | |
| 105 ngx_str_t name; | |
| 106 ngx_str_t value; | |
| 107 | |
| 108 u_char *field_end; | |
| 109 size_t field_length; | |
| 110 size_t field_rest; | |
| 111 u_char field_state; | |
| 112 | |
| 113 unsigned literal:1; | |
| 114 unsigned field_huffman:1; | |
| 115 | |
| 116 unsigned header_sent:1; | |
| 117 unsigned output_closed:1; | |
|
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118 unsigned output_blocked:1; |
| 7233 | 119 unsigned parsing_headers:1; |
| 120 unsigned end_stream:1; | |
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121 unsigned done:1; |
| 7233 | 122 unsigned status:1; |
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7646
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gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
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123 unsigned rst:1; |
| 7233 | 124 |
| 125 ngx_http_request_t *request; | |
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126 |
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127 ngx_str_t host; |
| 7233 | 128 } ngx_http_grpc_ctx_t; |
| 129 | |
| 130 | |
| 131 typedef struct { | |
| 132 u_char length_0; | |
| 133 u_char length_1; | |
| 134 u_char length_2; | |
| 135 u_char type; | |
| 136 u_char flags; | |
| 137 u_char stream_id_0; | |
| 138 u_char stream_id_1; | |
| 139 u_char stream_id_2; | |
| 140 u_char stream_id_3; | |
| 141 } ngx_http_grpc_frame_t; | |
| 142 | |
| 143 | |
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144 static ngx_int_t ngx_http_grpc_eval(ngx_http_request_t *r, |
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145 ngx_http_grpc_ctx_t *ctx, ngx_http_grpc_loc_conf_t *glcf); |
| 7233 | 146 static ngx_int_t ngx_http_grpc_create_request(ngx_http_request_t *r); |
| 147 static ngx_int_t ngx_http_grpc_reinit_request(ngx_http_request_t *r); | |
| 148 static ngx_int_t ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in); | |
| 149 static ngx_int_t ngx_http_grpc_process_header(ngx_http_request_t *r); | |
| 150 static ngx_int_t ngx_http_grpc_filter_init(void *data); | |
| 151 static ngx_int_t ngx_http_grpc_filter(void *data, ssize_t bytes); | |
| 152 | |
| 153 static ngx_int_t ngx_http_grpc_parse_frame(ngx_http_request_t *r, | |
| 154 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 155 static ngx_int_t ngx_http_grpc_parse_header(ngx_http_request_t *r, | |
| 156 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 157 static ngx_int_t ngx_http_grpc_parse_fragment(ngx_http_request_t *r, | |
| 158 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 159 static ngx_int_t ngx_http_grpc_validate_header_name(ngx_http_request_t *r, | |
| 160 ngx_str_t *s); | |
| 161 static ngx_int_t ngx_http_grpc_validate_header_value(ngx_http_request_t *r, | |
| 162 ngx_str_t *s); | |
| 163 static ngx_int_t ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, | |
| 164 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 165 static ngx_int_t ngx_http_grpc_parse_goaway(ngx_http_request_t *r, | |
| 166 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 167 static ngx_int_t ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
| 168 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 169 static ngx_int_t ngx_http_grpc_parse_settings(ngx_http_request_t *r, | |
| 170 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 171 static ngx_int_t ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
| 172 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 173 | |
| 174 static ngx_int_t ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, | |
| 175 ngx_http_grpc_ctx_t *ctx); | |
| 176 static ngx_int_t ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, | |
| 177 ngx_http_grpc_ctx_t *ctx); | |
| 178 static ngx_int_t ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
| 179 ngx_http_grpc_ctx_t *ctx); | |
| 180 | |
| 181 static ngx_chain_t *ngx_http_grpc_get_buf(ngx_http_request_t *r, | |
| 182 ngx_http_grpc_ctx_t *ctx); | |
| 183 static ngx_http_grpc_ctx_t *ngx_http_grpc_get_ctx(ngx_http_request_t *r); | |
| 184 static ngx_int_t ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
| 185 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc); | |
| 186 static void ngx_http_grpc_cleanup(void *data); | |
| 187 | |
| 188 static void ngx_http_grpc_abort_request(ngx_http_request_t *r); | |
| 189 static void ngx_http_grpc_finalize_request(ngx_http_request_t *r, | |
| 190 ngx_int_t rc); | |
| 191 | |
|
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192 static ngx_int_t ngx_http_grpc_internal_trailers_variable( |
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193 ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); |
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194 |
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195 static ngx_int_t ngx_http_grpc_add_variables(ngx_conf_t *cf); |
| 7233 | 196 static void *ngx_http_grpc_create_loc_conf(ngx_conf_t *cf); |
| 197 static char *ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, | |
| 198 void *parent, void *child); | |
| 199 static ngx_int_t ngx_http_grpc_init_headers(ngx_conf_t *cf, | |
| 200 ngx_http_grpc_loc_conf_t *conf, ngx_http_grpc_headers_t *headers, | |
| 201 ngx_keyval_t *default_headers); | |
| 202 | |
| 203 static char *ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 204 void *conf); | |
| 205 | |
| 206 #if (NGX_HTTP_SSL) | |
| 207 static char *ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, | |
| 208 ngx_command_t *cmd, void *conf); | |
| 209 static ngx_int_t ngx_http_grpc_set_ssl(ngx_conf_t *cf, | |
| 210 ngx_http_grpc_loc_conf_t *glcf); | |
| 211 #endif | |
| 212 | |
| 213 | |
| 214 static ngx_conf_bitmask_t ngx_http_grpc_next_upstream_masks[] = { | |
| 215 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, | |
| 216 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, | |
| 217 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, | |
| 218 { ngx_string("non_idempotent"), NGX_HTTP_UPSTREAM_FT_NON_IDEMPOTENT }, | |
| 219 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 }, | |
| 220 { ngx_string("http_502"), NGX_HTTP_UPSTREAM_FT_HTTP_502 }, | |
| 221 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 }, | |
| 222 { ngx_string("http_504"), NGX_HTTP_UPSTREAM_FT_HTTP_504 }, | |
| 223 { ngx_string("http_403"), NGX_HTTP_UPSTREAM_FT_HTTP_403 }, | |
| 224 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, | |
| 225 { ngx_string("http_429"), NGX_HTTP_UPSTREAM_FT_HTTP_429 }, | |
| 226 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, | |
| 227 { ngx_null_string, 0 } | |
| 228 }; | |
| 229 | |
| 230 | |
| 231 #if (NGX_HTTP_SSL) | |
| 232 | |
| 233 static ngx_conf_bitmask_t ngx_http_grpc_ssl_protocols[] = { | |
| 234 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
| 235 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
| 236 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
| 237 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, | |
| 238 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, | |
| 239 { ngx_string("TLSv1.3"), NGX_SSL_TLSv1_3 }, | |
| 240 { ngx_null_string, 0 } | |
| 241 }; | |
| 242 | |
| 243 #endif | |
| 244 | |
| 245 | |
| 246 static ngx_command_t ngx_http_grpc_commands[] = { | |
| 247 | |
| 248 { ngx_string("grpc_pass"), | |
| 249 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
| 250 ngx_http_grpc_pass, | |
| 251 NGX_HTTP_LOC_CONF_OFFSET, | |
| 252 0, | |
| 253 NULL }, | |
| 254 | |
| 255 { ngx_string("grpc_bind"), | |
| 256 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, | |
| 257 ngx_http_upstream_bind_set_slot, | |
| 258 NGX_HTTP_LOC_CONF_OFFSET, | |
| 259 offsetof(ngx_http_grpc_loc_conf_t, upstream.local), | |
| 260 NULL }, | |
| 261 | |
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262 { ngx_string("grpc_socket_keepalive"), |
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263 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
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264 ngx_conf_set_flag_slot, |
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265 NGX_HTTP_LOC_CONF_OFFSET, |
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266 offsetof(ngx_http_grpc_loc_conf_t, upstream.socket_keepalive), |
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267 NULL }, |
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268 |
| 7233 | 269 { ngx_string("grpc_connect_timeout"), |
| 270 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 271 ngx_conf_set_msec_slot, | |
| 272 NGX_HTTP_LOC_CONF_OFFSET, | |
| 273 offsetof(ngx_http_grpc_loc_conf_t, upstream.connect_timeout), | |
| 274 NULL }, | |
| 275 | |
| 276 { ngx_string("grpc_send_timeout"), | |
| 277 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 278 ngx_conf_set_msec_slot, | |
| 279 NGX_HTTP_LOC_CONF_OFFSET, | |
| 280 offsetof(ngx_http_grpc_loc_conf_t, upstream.send_timeout), | |
| 281 NULL }, | |
| 282 | |
| 283 { ngx_string("grpc_intercept_errors"), | |
| 284 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 285 ngx_conf_set_flag_slot, | |
| 286 NGX_HTTP_LOC_CONF_OFFSET, | |
| 287 offsetof(ngx_http_grpc_loc_conf_t, upstream.intercept_errors), | |
| 288 NULL }, | |
| 289 | |
| 290 { ngx_string("grpc_buffer_size"), | |
| 291 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 292 ngx_conf_set_size_slot, | |
| 293 NGX_HTTP_LOC_CONF_OFFSET, | |
| 294 offsetof(ngx_http_grpc_loc_conf_t, upstream.buffer_size), | |
| 295 NULL }, | |
| 296 | |
| 297 { ngx_string("grpc_read_timeout"), | |
| 298 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 299 ngx_conf_set_msec_slot, | |
| 300 NGX_HTTP_LOC_CONF_OFFSET, | |
| 301 offsetof(ngx_http_grpc_loc_conf_t, upstream.read_timeout), | |
| 302 NULL }, | |
| 303 | |
| 304 { ngx_string("grpc_next_upstream"), | |
| 305 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 306 ngx_conf_set_bitmask_slot, | |
| 307 NGX_HTTP_LOC_CONF_OFFSET, | |
| 308 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream), | |
| 309 &ngx_http_grpc_next_upstream_masks }, | |
| 310 | |
| 311 { ngx_string("grpc_next_upstream_tries"), | |
| 312 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 313 ngx_conf_set_num_slot, | |
| 314 NGX_HTTP_LOC_CONF_OFFSET, | |
| 315 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_tries), | |
| 316 NULL }, | |
| 317 | |
| 318 { ngx_string("grpc_next_upstream_timeout"), | |
| 319 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 320 ngx_conf_set_msec_slot, | |
| 321 NGX_HTTP_LOC_CONF_OFFSET, | |
| 322 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_timeout), | |
| 323 NULL }, | |
| 324 | |
| 325 { ngx_string("grpc_set_header"), | |
| 326 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
| 327 ngx_conf_set_keyval_slot, | |
| 328 NGX_HTTP_LOC_CONF_OFFSET, | |
| 329 offsetof(ngx_http_grpc_loc_conf_t, headers_source), | |
| 330 NULL }, | |
| 331 | |
| 332 { ngx_string("grpc_pass_header"), | |
| 333 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 334 ngx_conf_set_str_array_slot, | |
| 335 NGX_HTTP_LOC_CONF_OFFSET, | |
| 336 offsetof(ngx_http_grpc_loc_conf_t, upstream.pass_headers), | |
| 337 NULL }, | |
| 338 | |
| 339 { ngx_string("grpc_hide_header"), | |
| 340 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 341 ngx_conf_set_str_array_slot, | |
| 342 NGX_HTTP_LOC_CONF_OFFSET, | |
| 343 offsetof(ngx_http_grpc_loc_conf_t, upstream.hide_headers), | |
| 344 NULL }, | |
| 345 | |
| 346 { ngx_string("grpc_ignore_headers"), | |
| 347 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 348 ngx_conf_set_bitmask_slot, | |
| 349 NGX_HTTP_LOC_CONF_OFFSET, | |
| 350 offsetof(ngx_http_grpc_loc_conf_t, upstream.ignore_headers), | |
| 351 &ngx_http_upstream_ignore_headers_masks }, | |
| 352 | |
| 353 #if (NGX_HTTP_SSL) | |
| 354 | |
| 355 { ngx_string("grpc_ssl_session_reuse"), | |
| 356 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 357 ngx_conf_set_flag_slot, | |
| 358 NGX_HTTP_LOC_CONF_OFFSET, | |
| 359 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_session_reuse), | |
| 360 NULL }, | |
| 361 | |
| 362 { ngx_string("grpc_ssl_protocols"), | |
| 363 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 364 ngx_conf_set_bitmask_slot, | |
| 365 NGX_HTTP_LOC_CONF_OFFSET, | |
| 366 offsetof(ngx_http_grpc_loc_conf_t, ssl_protocols), | |
| 367 &ngx_http_grpc_ssl_protocols }, | |
| 368 | |
| 369 { ngx_string("grpc_ssl_ciphers"), | |
| 370 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 371 ngx_conf_set_str_slot, | |
| 372 NGX_HTTP_LOC_CONF_OFFSET, | |
| 373 offsetof(ngx_http_grpc_loc_conf_t, ssl_ciphers), | |
| 374 NULL }, | |
| 375 | |
| 376 { ngx_string("grpc_ssl_name"), | |
| 377 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 378 ngx_http_set_complex_value_slot, | |
| 379 NGX_HTTP_LOC_CONF_OFFSET, | |
| 380 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_name), | |
| 381 NULL }, | |
| 382 | |
| 383 { ngx_string("grpc_ssl_server_name"), | |
| 384 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 385 ngx_conf_set_flag_slot, | |
| 386 NGX_HTTP_LOC_CONF_OFFSET, | |
| 387 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_server_name), | |
| 388 NULL }, | |
| 389 | |
| 390 { ngx_string("grpc_ssl_verify"), | |
| 391 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 392 ngx_conf_set_flag_slot, | |
| 393 NGX_HTTP_LOC_CONF_OFFSET, | |
| 394 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_verify), | |
| 395 NULL }, | |
| 396 | |
| 397 { ngx_string("grpc_ssl_verify_depth"), | |
| 398 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 399 ngx_conf_set_num_slot, | |
| 400 NGX_HTTP_LOC_CONF_OFFSET, | |
| 401 offsetof(ngx_http_grpc_loc_conf_t, ssl_verify_depth), | |
| 402 NULL }, | |
| 403 | |
| 404 { ngx_string("grpc_ssl_trusted_certificate"), | |
| 405 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 406 ngx_conf_set_str_slot, | |
| 407 NGX_HTTP_LOC_CONF_OFFSET, | |
| 408 offsetof(ngx_http_grpc_loc_conf_t, ssl_trusted_certificate), | |
| 409 NULL }, | |
| 410 | |
| 411 { ngx_string("grpc_ssl_crl"), | |
| 412 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 413 ngx_conf_set_str_slot, | |
| 414 NGX_HTTP_LOC_CONF_OFFSET, | |
| 415 offsetof(ngx_http_grpc_loc_conf_t, ssl_crl), | |
| 416 NULL }, | |
| 417 | |
| 418 { ngx_string("grpc_ssl_certificate"), | |
| 419 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 420 ngx_conf_set_str_slot, | |
| 421 NGX_HTTP_LOC_CONF_OFFSET, | |
| 422 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate), | |
| 423 NULL }, | |
| 424 | |
| 425 { ngx_string("grpc_ssl_certificate_key"), | |
| 426 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 427 ngx_conf_set_str_slot, | |
| 428 NGX_HTTP_LOC_CONF_OFFSET, | |
| 429 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate_key), | |
| 430 NULL }, | |
| 431 | |
| 432 { ngx_string("grpc_ssl_password_file"), | |
| 433 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 434 ngx_http_grpc_ssl_password_file, | |
| 435 NGX_HTTP_LOC_CONF_OFFSET, | |
| 436 0, | |
| 437 NULL }, | |
| 438 | |
| 439 #endif | |
| 440 | |
| 441 ngx_null_command | |
| 442 }; | |
| 443 | |
| 444 | |
| 445 static ngx_http_module_t ngx_http_grpc_module_ctx = { | |
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446 ngx_http_grpc_add_variables, /* preconfiguration */ |
| 7233 | 447 NULL, /* postconfiguration */ |
| 448 | |
| 449 NULL, /* create main configuration */ | |
| 450 NULL, /* init main configuration */ | |
| 451 | |
| 452 NULL, /* create server configuration */ | |
| 453 NULL, /* merge server configuration */ | |
| 454 | |
| 455 ngx_http_grpc_create_loc_conf, /* create location configuration */ | |
| 456 ngx_http_grpc_merge_loc_conf /* merge location configuration */ | |
| 457 }; | |
| 458 | |
| 459 | |
| 460 ngx_module_t ngx_http_grpc_module = { | |
| 461 NGX_MODULE_V1, | |
| 462 &ngx_http_grpc_module_ctx, /* module context */ | |
| 463 ngx_http_grpc_commands, /* module directives */ | |
| 464 NGX_HTTP_MODULE, /* module type */ | |
| 465 NULL, /* init master */ | |
| 466 NULL, /* init module */ | |
| 467 NULL, /* init process */ | |
| 468 NULL, /* init thread */ | |
| 469 NULL, /* exit thread */ | |
| 470 NULL, /* exit process */ | |
| 471 NULL, /* exit master */ | |
| 472 NGX_MODULE_V1_PADDING | |
| 473 }; | |
| 474 | |
| 475 | |
| 476 static u_char ngx_http_grpc_connection_start[] = | |
| 477 "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" /* connection preface */ | |
| 478 | |
| 479 "\x00\x00\x12\x04\x00\x00\x00\x00\x00" /* settings frame */ | |
| 480 "\x00\x01\x00\x00\x00\x00" /* header table size */ | |
| 481 "\x00\x02\x00\x00\x00\x00" /* disable push */ | |
| 482 "\x00\x04\x7f\xff\xff\xff" /* initial window */ | |
| 483 | |
| 484 "\x00\x00\x04\x08\x00\x00\x00\x00\x00" /* window update frame */ | |
| 485 "\x7f\xff\x00\x00"; | |
| 486 | |
| 487 | |
| 488 static ngx_keyval_t ngx_http_grpc_headers[] = { | |
| 489 { ngx_string("Content-Length"), ngx_string("$content_length") }, | |
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490 { ngx_string("TE"), ngx_string("$grpc_internal_trailers") }, |
| 7233 | 491 { ngx_string("Host"), ngx_string("") }, |
| 492 { ngx_string("Connection"), ngx_string("") }, | |
| 493 { ngx_string("Transfer-Encoding"), ngx_string("") }, | |
| 494 { ngx_string("Keep-Alive"), ngx_string("") }, | |
| 495 { ngx_string("Expect"), ngx_string("") }, | |
| 496 { ngx_string("Upgrade"), ngx_string("") }, | |
| 497 { ngx_null_string, ngx_null_string } | |
| 498 }; | |
| 499 | |
| 500 | |
| 501 static ngx_str_t ngx_http_grpc_hide_headers[] = { | |
| 502 ngx_string("Date"), | |
| 503 ngx_string("Server"), | |
| 504 ngx_string("X-Accel-Expires"), | |
| 505 ngx_string("X-Accel-Redirect"), | |
| 506 ngx_string("X-Accel-Limit-Rate"), | |
| 507 ngx_string("X-Accel-Buffering"), | |
| 508 ngx_string("X-Accel-Charset"), | |
| 509 ngx_null_string | |
| 510 }; | |
| 511 | |
| 512 | |
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513 static ngx_http_variable_t ngx_http_grpc_vars[] = { |
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514 |
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515 { ngx_string("grpc_internal_trailers"), NULL, |
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516 ngx_http_grpc_internal_trailers_variable, 0, |
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517 NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, |
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518 |
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519 ngx_http_null_variable |
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520 }; |
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521 |
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522 |
| 7233 | 523 static ngx_int_t |
| 524 ngx_http_grpc_handler(ngx_http_request_t *r) | |
| 525 { | |
| 526 ngx_int_t rc; | |
| 527 ngx_http_upstream_t *u; | |
| 528 ngx_http_grpc_ctx_t *ctx; | |
| 529 ngx_http_grpc_loc_conf_t *glcf; | |
| 530 | |
| 531 if (ngx_http_upstream_create(r) != NGX_OK) { | |
| 532 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 533 } | |
| 534 | |
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535 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_grpc_ctx_t)); |
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536 if (ctx == NULL) { |
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537 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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538 } |
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539 |
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540 ctx->request = r; |
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541 |
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542 ngx_http_set_ctx(r, ctx, ngx_http_grpc_module); |
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543 |
| 7233 | 544 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); |
| 545 | |
| 546 u = r->upstream; | |
| 547 | |
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548 if (glcf->grpc_lengths == NULL) { |
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549 ctx->host = glcf->host; |
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550 |
| 7233 | 551 #if (NGX_HTTP_SSL) |
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552 u->ssl = (glcf->upstream.ssl != NULL); |
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553 |
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554 if (u->ssl) { |
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555 ngx_str_set(&u->schema, "grpcs://"); |
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556 |
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557 } else { |
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558 ngx_str_set(&u->schema, "grpc://"); |
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559 } |
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560 #else |
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561 ngx_str_set(&u->schema, "grpc://"); |
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562 #endif |
| 7233 | 563 |
| 564 } else { | |
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565 if (ngx_http_grpc_eval(r, ctx, glcf) != NGX_OK) { |
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566 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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567 } |
| 7233 | 568 } |
| 569 | |
| 570 u->output.tag = (ngx_buf_tag_t) &ngx_http_grpc_module; | |
| 571 | |
| 572 u->conf = &glcf->upstream; | |
| 573 | |
| 574 u->create_request = ngx_http_grpc_create_request; | |
| 575 u->reinit_request = ngx_http_grpc_reinit_request; | |
| 576 u->process_header = ngx_http_grpc_process_header; | |
| 577 u->abort_request = ngx_http_grpc_abort_request; | |
| 578 u->finalize_request = ngx_http_grpc_finalize_request; | |
| 579 | |
| 580 u->input_filter_init = ngx_http_grpc_filter_init; | |
| 581 u->input_filter = ngx_http_grpc_filter; | |
| 582 u->input_filter_ctx = ctx; | |
| 583 | |
| 584 r->request_body_no_buffering = 1; | |
| 585 | |
| 586 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init); | |
| 587 | |
| 588 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { | |
| 589 return rc; | |
| 590 } | |
| 591 | |
| 592 return NGX_DONE; | |
| 593 } | |
| 594 | |
| 595 | |
| 596 static ngx_int_t | |
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597 ngx_http_grpc_eval(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, |
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598 ngx_http_grpc_loc_conf_t *glcf) |
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599 { |
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600 size_t add; |
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601 ngx_url_t url; |
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602 ngx_http_upstream_t *u; |
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603 |
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604 ngx_memzero(&url, sizeof(ngx_url_t)); |
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605 |
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606 if (ngx_http_script_run(r, &url.url, glcf->grpc_lengths->elts, 0, |
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607 glcf->grpc_values->elts) |
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608 == NULL) |
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609 { |
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610 return NGX_ERROR; |
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611 } |
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612 |
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613 if (url.url.len > 7 |
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614 && ngx_strncasecmp(url.url.data, (u_char *) "grpc://", 7) == 0) |
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615 { |
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616 add = 7; |
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617 |
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618 } else if (url.url.len > 8 |
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619 && ngx_strncasecmp(url.url.data, (u_char *) "grpcs://", 8) == 0) |
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620 { |
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621 |
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622 #if (NGX_HTTP_SSL) |
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623 add = 8; |
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624 r->upstream->ssl = 1; |
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625 #else |
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626 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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627 "grpcs protocol requires SSL support"); |
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628 return NGX_ERROR; |
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629 #endif |
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630 |
|
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631 } else { |
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632 add = 0; |
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633 } |
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634 |
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635 u = r->upstream; |
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636 |
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637 if (add) { |
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638 u->schema.len = add; |
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639 u->schema.data = url.url.data; |
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640 |
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641 url.url.data += add; |
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642 url.url.len -= add; |
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643 |
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644 } else { |
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645 ngx_str_set(&u->schema, "grpc://"); |
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646 } |
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647 |
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648 url.no_resolve = 1; |
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649 |
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650 if (ngx_parse_url(r->pool, &url) != NGX_OK) { |
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651 if (url.err) { |
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652 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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653 "%s in upstream \"%V\"", url.err, &url.url); |
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654 } |
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655 |
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656 return NGX_ERROR; |
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657 } |
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658 |
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659 u->resolved = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_resolved_t)); |
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660 if (u->resolved == NULL) { |
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661 return NGX_ERROR; |
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662 } |
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663 |
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664 if (url.addrs) { |
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665 u->resolved->sockaddr = url.addrs[0].sockaddr; |
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666 u->resolved->socklen = url.addrs[0].socklen; |
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667 u->resolved->name = url.addrs[0].name; |
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668 u->resolved->naddrs = 1; |
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669 } |
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670 |
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671 u->resolved->host = url.host; |
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672 u->resolved->port = url.port; |
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673 u->resolved->no_port = url.no_port; |
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674 |
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675 if (url.family != AF_UNIX) { |
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676 |
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677 if (url.no_port) { |
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678 ctx->host = url.host; |
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679 |
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680 } else { |
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681 ctx->host.len = url.host.len + 1 + url.port_text.len; |
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682 ctx->host.data = url.host.data; |
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683 } |
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684 |
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685 } else { |
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686 ngx_str_set(&ctx->host, "localhost"); |
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687 } |
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688 |
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689 return NGX_OK; |
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690 } |
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691 |
|
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|
692 |
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693 static ngx_int_t |
| 7233 | 694 ngx_http_grpc_create_request(ngx_http_request_t *r) |
| 695 { | |
| 696 u_char *p, *tmp, *key_tmp, *val_tmp, *headers_frame; | |
| 697 size_t len, tmp_len, key_len, val_len, uri_len; | |
| 698 uintptr_t escape; | |
| 699 ngx_buf_t *b; | |
| 700 ngx_uint_t i, next; | |
| 701 ngx_chain_t *cl, *body; | |
| 702 ngx_list_part_t *part; | |
| 703 ngx_table_elt_t *header; | |
|
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704 ngx_http_grpc_ctx_t *ctx; |
| 7233 | 705 ngx_http_upstream_t *u; |
| 706 ngx_http_grpc_frame_t *f; | |
| 707 ngx_http_script_code_pt code; | |
| 708 ngx_http_grpc_loc_conf_t *glcf; | |
| 709 ngx_http_script_engine_t e, le; | |
| 710 ngx_http_script_len_code_pt lcode; | |
| 711 | |
| 712 u = r->upstream; | |
| 713 | |
| 714 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); | |
| 715 | |
|
7619
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716 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); |
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717 |
| 7233 | 718 len = sizeof(ngx_http_grpc_connection_start) - 1 |
| 719 + sizeof(ngx_http_grpc_frame_t); /* headers frame */ | |
| 720 | |
| 721 /* :method header */ | |
| 722 | |
| 723 if (r->method == NGX_HTTP_GET || r->method == NGX_HTTP_POST) { | |
| 724 len += 1; | |
| 725 tmp_len = 0; | |
| 726 | |
| 727 } else { | |
| 728 len += 1 + NGX_HTTP_V2_INT_OCTETS + r->method_name.len; | |
| 729 tmp_len = r->method_name.len; | |
| 730 } | |
| 731 | |
| 732 /* :scheme header */ | |
| 733 | |
| 734 len += 1; | |
| 735 | |
| 736 /* :path header */ | |
| 737 | |
| 738 if (r->valid_unparsed_uri) { | |
| 739 escape = 0; | |
| 740 uri_len = r->unparsed_uri.len; | |
| 741 | |
| 742 } else { | |
| 743 escape = 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len, | |
| 744 NGX_ESCAPE_URI); | |
| 745 uri_len = r->uri.len + escape + sizeof("?") - 1 + r->args.len; | |
| 746 } | |
| 747 | |
| 748 len += 1 + NGX_HTTP_V2_INT_OCTETS + uri_len; | |
| 749 | |
| 750 if (tmp_len < uri_len) { | |
| 751 tmp_len = uri_len; | |
| 752 } | |
| 753 | |
| 754 /* :authority header */ | |
| 755 | |
| 756 if (!glcf->host_set) { | |
|
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757 len += 1 + NGX_HTTP_V2_INT_OCTETS + ctx->host.len; |
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758 |
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759 if (tmp_len < ctx->host.len) { |
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760 tmp_len = ctx->host.len; |
| 7233 | 761 } |
| 762 } | |
| 763 | |
| 764 /* other headers */ | |
| 765 | |
| 766 ngx_http_script_flush_no_cacheable_variables(r, glcf->headers.flushes); | |
| 767 ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); | |
| 768 | |
| 769 le.ip = glcf->headers.lengths->elts; | |
| 770 le.request = r; | |
| 771 le.flushed = 1; | |
| 772 | |
| 773 while (*(uintptr_t *) le.ip) { | |
| 774 | |
| 775 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 776 key_len = lcode(&le); | |
| 777 | |
| 778 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
| 779 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 780 } | |
| 781 le.ip += sizeof(uintptr_t); | |
| 782 | |
| 783 if (val_len == 0) { | |
| 784 continue; | |
| 785 } | |
| 786 | |
| 787 len += 1 + NGX_HTTP_V2_INT_OCTETS + key_len | |
| 788 + NGX_HTTP_V2_INT_OCTETS + val_len; | |
| 789 | |
| 790 if (tmp_len < key_len) { | |
| 791 tmp_len = key_len; | |
| 792 } | |
| 793 | |
| 794 if (tmp_len < val_len) { | |
| 795 tmp_len = val_len; | |
| 796 } | |
| 797 } | |
| 798 | |
| 799 if (glcf->upstream.pass_request_headers) { | |
| 800 part = &r->headers_in.headers.part; | |
| 801 header = part->elts; | |
| 802 | |
| 803 for (i = 0; /* void */; i++) { | |
| 804 | |
| 805 if (i >= part->nelts) { | |
| 806 if (part->next == NULL) { | |
| 807 break; | |
| 808 } | |
| 809 | |
| 810 part = part->next; | |
| 811 header = part->elts; | |
| 812 i = 0; | |
| 813 } | |
| 814 | |
| 815 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
| 816 header[i].lowcase_key, header[i].key.len)) | |
| 817 { | |
| 818 continue; | |
| 819 } | |
| 820 | |
| 821 len += 1 + NGX_HTTP_V2_INT_OCTETS + header[i].key.len | |
| 822 + NGX_HTTP_V2_INT_OCTETS + header[i].value.len; | |
| 823 | |
| 824 if (tmp_len < header[i].key.len) { | |
| 825 tmp_len = header[i].key.len; | |
| 826 } | |
| 827 | |
| 828 if (tmp_len < header[i].value.len) { | |
| 829 tmp_len = header[i].value.len; | |
| 830 } | |
| 831 } | |
| 832 } | |
| 833 | |
| 834 /* continuation frames */ | |
| 835 | |
| 836 len += sizeof(ngx_http_grpc_frame_t) | |
| 837 * (len / NGX_HTTP_V2_DEFAULT_FRAME_SIZE); | |
| 838 | |
| 839 | |
| 840 b = ngx_create_temp_buf(r->pool, len); | |
| 841 if (b == NULL) { | |
| 842 return NGX_ERROR; | |
| 843 } | |
| 844 | |
| 845 cl = ngx_alloc_chain_link(r->pool); | |
| 846 if (cl == NULL) { | |
| 847 return NGX_ERROR; | |
| 848 } | |
| 849 | |
| 850 cl->buf = b; | |
| 851 cl->next = NULL; | |
| 852 | |
| 853 tmp = ngx_palloc(r->pool, tmp_len * 3); | |
| 854 if (tmp == NULL) { | |
| 855 return NGX_ERROR; | |
| 856 } | |
| 857 | |
| 858 key_tmp = tmp + tmp_len; | |
| 859 val_tmp = tmp + 2 * tmp_len; | |
| 860 | |
| 861 /* connection preface */ | |
| 862 | |
| 863 b->last = ngx_copy(b->last, ngx_http_grpc_connection_start, | |
| 864 sizeof(ngx_http_grpc_connection_start) - 1); | |
| 865 | |
| 866 /* headers frame */ | |
| 867 | |
| 868 headers_frame = b->last; | |
| 869 | |
| 870 f = (ngx_http_grpc_frame_t *) b->last; | |
| 871 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 872 | |
| 873 f->length_0 = 0; | |
| 874 f->length_1 = 0; | |
| 875 f->length_2 = 0; | |
| 876 f->type = NGX_HTTP_V2_HEADERS_FRAME; | |
| 877 f->flags = 0; | |
| 878 f->stream_id_0 = 0; | |
| 879 f->stream_id_1 = 0; | |
| 880 f->stream_id_2 = 0; | |
| 881 f->stream_id_3 = 1; | |
| 882 | |
| 883 if (r->method == NGX_HTTP_GET) { | |
| 884 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_GET_INDEX); | |
| 885 | |
| 886 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 887 "grpc header: \":method: GET\""); | |
| 888 | |
| 889 } else if (r->method == NGX_HTTP_POST) { | |
| 890 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_POST_INDEX); | |
| 891 | |
| 892 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 893 "grpc header: \":method: POST\""); | |
| 894 | |
| 895 } else { | |
| 896 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_METHOD_INDEX); | |
| 897 b->last = ngx_http_v2_write_value(b->last, r->method_name.data, | |
| 898 r->method_name.len, tmp); | |
| 899 | |
| 900 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 901 "grpc header: \":method: %V\"", &r->method_name); | |
| 902 } | |
| 903 | |
| 904 #if (NGX_HTTP_SSL) | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
905 if (u->ssl) { |
| 7233 | 906 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTPS_INDEX); |
| 907 | |
| 908 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 909 "grpc header: \":scheme: https\""); | |
| 910 } else | |
| 911 #endif | |
| 912 { | |
| 913 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTP_INDEX); | |
| 914 | |
| 915 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 916 "grpc header: \":scheme: http\""); | |
| 917 } | |
| 918 | |
| 919 if (r->valid_unparsed_uri) { | |
| 920 | |
| 921 if (r->unparsed_uri.len == 1 && r->unparsed_uri.data[0] == '/') { | |
| 922 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_PATH_ROOT_INDEX); | |
| 923 | |
| 924 } else { | |
| 925 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 926 b->last = ngx_http_v2_write_value(b->last, r->unparsed_uri.data, | |
| 927 r->unparsed_uri.len, tmp); | |
| 928 } | |
| 929 | |
| 930 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 931 "grpc header: \":path: %V\"", &r->unparsed_uri); | |
| 932 | |
| 933 } else if (escape || r->args.len > 0) { | |
| 934 p = val_tmp; | |
| 935 | |
| 936 if (escape) { | |
| 937 p = (u_char *) ngx_escape_uri(p, r->uri.data, r->uri.len, | |
| 938 NGX_ESCAPE_URI); | |
| 939 | |
| 940 } else { | |
| 941 p = ngx_copy(p, r->uri.data, r->uri.len); | |
| 942 } | |
| 943 | |
| 944 if (r->args.len > 0) { | |
| 945 *p++ = '?'; | |
| 946 p = ngx_copy(p, r->args.data, r->args.len); | |
| 947 } | |
| 948 | |
| 949 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 950 b->last = ngx_http_v2_write_value(b->last, val_tmp, p - val_tmp, tmp); | |
| 951 | |
| 952 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 953 "grpc header: \":path: %*s\"", p - val_tmp, val_tmp); | |
| 954 | |
| 955 } else { | |
| 956 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 957 b->last = ngx_http_v2_write_value(b->last, r->uri.data, | |
| 958 r->uri.len, tmp); | |
| 959 | |
| 960 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 961 "grpc header: \":path: %V\"", &r->uri); | |
| 962 } | |
| 963 | |
| 964 if (!glcf->host_set) { | |
| 965 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_AUTHORITY_INDEX); | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
966 b->last = ngx_http_v2_write_value(b->last, ctx->host.data, |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
967 ctx->host.len, tmp); |
| 7233 | 968 |
| 969 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
970 "grpc header: \":authority: %V\"", &ctx->host); |
| 7233 | 971 } |
| 972 | |
| 973 ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); | |
| 974 | |
| 975 e.ip = glcf->headers.values->elts; | |
| 976 e.request = r; | |
| 977 e.flushed = 1; | |
| 978 | |
| 979 le.ip = glcf->headers.lengths->elts; | |
| 980 | |
| 981 while (*(uintptr_t *) le.ip) { | |
| 982 | |
| 983 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 984 key_len = lcode(&le); | |
| 985 | |
| 986 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
| 987 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 988 } | |
| 989 le.ip += sizeof(uintptr_t); | |
| 990 | |
| 991 if (val_len == 0) { | |
| 992 e.skip = 1; | |
| 993 | |
| 994 while (*(uintptr_t *) e.ip) { | |
| 995 code = *(ngx_http_script_code_pt *) e.ip; | |
| 996 code((ngx_http_script_engine_t *) &e); | |
| 997 } | |
| 998 e.ip += sizeof(uintptr_t); | |
| 999 | |
| 1000 e.skip = 0; | |
| 1001 | |
| 1002 continue; | |
| 1003 } | |
| 1004 | |
| 1005 *b->last++ = 0; | |
| 1006 | |
| 1007 e.pos = key_tmp; | |
| 1008 | |
| 1009 code = *(ngx_http_script_code_pt *) e.ip; | |
| 1010 code((ngx_http_script_engine_t *) &e); | |
| 1011 | |
| 1012 b->last = ngx_http_v2_write_name(b->last, key_tmp, key_len, tmp); | |
| 1013 | |
| 1014 e.pos = val_tmp; | |
| 1015 | |
| 1016 while (*(uintptr_t *) e.ip) { | |
| 1017 code = *(ngx_http_script_code_pt *) e.ip; | |
| 1018 code((ngx_http_script_engine_t *) &e); | |
| 1019 } | |
| 1020 e.ip += sizeof(uintptr_t); | |
| 1021 | |
| 1022 b->last = ngx_http_v2_write_value(b->last, val_tmp, val_len, tmp); | |
| 1023 | |
| 1024 #if (NGX_DEBUG) | |
| 1025 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1026 ngx_strlow(key_tmp, key_tmp, key_len); | |
| 1027 | |
| 1028 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1029 "grpc header: \"%*s: %*s\"", | |
| 1030 key_len, key_tmp, val_len, val_tmp); | |
| 1031 } | |
| 1032 #endif | |
| 1033 } | |
| 1034 | |
| 1035 if (glcf->upstream.pass_request_headers) { | |
| 1036 part = &r->headers_in.headers.part; | |
| 1037 header = part->elts; | |
| 1038 | |
| 1039 for (i = 0; /* void */; i++) { | |
| 1040 | |
| 1041 if (i >= part->nelts) { | |
| 1042 if (part->next == NULL) { | |
| 1043 break; | |
| 1044 } | |
| 1045 | |
| 1046 part = part->next; | |
| 1047 header = part->elts; | |
| 1048 i = 0; | |
| 1049 } | |
| 1050 | |
| 1051 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
| 1052 header[i].lowcase_key, header[i].key.len)) | |
| 1053 { | |
| 1054 continue; | |
| 1055 } | |
| 1056 | |
| 1057 *b->last++ = 0; | |
| 1058 | |
| 1059 b->last = ngx_http_v2_write_name(b->last, header[i].key.data, | |
| 1060 header[i].key.len, tmp); | |
| 1061 | |
| 1062 b->last = ngx_http_v2_write_value(b->last, header[i].value.data, | |
| 1063 header[i].value.len, tmp); | |
| 1064 | |
| 1065 #if (NGX_DEBUG) | |
| 1066 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1067 ngx_strlow(tmp, header[i].key.data, header[i].key.len); | |
| 1068 | |
| 1069 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1070 "grpc header: \"%*s: %V\"", | |
| 1071 header[i].key.len, tmp, &header[i].value); | |
| 1072 } | |
| 1073 #endif | |
| 1074 } | |
| 1075 } | |
| 1076 | |
| 1077 /* update headers frame length */ | |
| 1078 | |
| 1079 len = b->last - headers_frame - sizeof(ngx_http_grpc_frame_t); | |
| 1080 | |
| 1081 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 1082 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1083 next = 1; | |
| 1084 | |
| 1085 } else { | |
| 1086 next = 0; | |
| 1087 } | |
| 1088 | |
| 1089 f = (ngx_http_grpc_frame_t *) headers_frame; | |
| 1090 | |
| 1091 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1092 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1093 f->length_2 = (u_char) (len & 0xff); | |
| 1094 | |
| 1095 /* create additional continuation frames */ | |
| 1096 | |
| 1097 p = headers_frame; | |
| 1098 | |
| 1099 while (next) { | |
| 1100 p += sizeof(ngx_http_grpc_frame_t) + NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1101 len = b->last - p; | |
| 1102 | |
| 1103 ngx_memmove(p + sizeof(ngx_http_grpc_frame_t), p, len); | |
| 1104 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1105 | |
| 1106 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 1107 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 1108 next = 1; | |
| 1109 | |
| 1110 } else { | |
| 1111 next = 0; | |
| 1112 } | |
| 1113 | |
| 1114 f = (ngx_http_grpc_frame_t *) p; | |
| 1115 | |
| 1116 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1117 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1118 f->length_2 = (u_char) (len & 0xff); | |
| 1119 f->type = NGX_HTTP_V2_CONTINUATION_FRAME; | |
| 1120 f->flags = 0; | |
| 1121 f->stream_id_0 = 0; | |
| 1122 f->stream_id_1 = 0; | |
| 1123 f->stream_id_2 = 0; | |
| 1124 f->stream_id_3 = 1; | |
| 1125 } | |
| 1126 | |
| 1127 f->flags |= NGX_HTTP_V2_END_HEADERS_FLAG; | |
| 1128 | |
| 1129 #if (NGX_DEBUG) | |
| 1130 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1131 u_char buf[512]; | |
| 1132 size_t n, m; | |
| 1133 | |
| 1134 n = ngx_min(b->last - b->pos, 256); | |
| 1135 m = ngx_hex_dump(buf, b->pos, n) - buf; | |
| 1136 | |
| 1137 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1138 "grpc header: %*s%s, len: %uz", | |
| 1139 m, buf, b->last - b->pos > 256 ? "..." : "", | |
| 1140 b->last - b->pos); | |
| 1141 } | |
| 1142 #endif | |
| 1143 | |
| 1144 if (r->request_body_no_buffering) { | |
| 1145 | |
| 1146 u->request_bufs = cl; | |
| 1147 | |
| 1148 } else { | |
| 1149 | |
| 1150 body = u->request_bufs; | |
| 1151 u->request_bufs = cl; | |
| 1152 | |
| 1153 if (body == NULL) { | |
| 1154 f = (ngx_http_grpc_frame_t *) headers_frame; | |
| 1155 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1156 } | |
| 1157 | |
| 1158 while (body) { | |
| 1159 b = ngx_alloc_buf(r->pool); | |
| 1160 if (b == NULL) { | |
| 1161 return NGX_ERROR; | |
| 1162 } | |
| 1163 | |
| 1164 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t)); | |
| 1165 | |
| 1166 cl->next = ngx_alloc_chain_link(r->pool); | |
| 1167 if (cl->next == NULL) { | |
| 1168 return NGX_ERROR; | |
| 1169 } | |
| 1170 | |
| 1171 cl = cl->next; | |
| 1172 cl->buf = b; | |
| 1173 | |
| 1174 body = body->next; | |
| 1175 } | |
| 1176 | |
| 1177 b->last_buf = 1; | |
| 1178 } | |
| 1179 | |
| 1180 u->output.output_filter = ngx_http_grpc_body_output_filter; | |
| 1181 u->output.filter_ctx = r; | |
| 1182 | |
| 1183 b->flush = 1; | |
| 1184 cl->next = NULL; | |
| 1185 | |
| 1186 return NGX_OK; | |
| 1187 } | |
| 1188 | |
| 1189 | |
| 1190 static ngx_int_t | |
| 1191 ngx_http_grpc_reinit_request(ngx_http_request_t *r) | |
| 1192 { | |
| 1193 ngx_http_grpc_ctx_t *ctx; | |
| 1194 | |
| 1195 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
| 1196 | |
| 1197 if (ctx == NULL) { | |
| 1198 return NGX_OK; | |
| 1199 } | |
| 1200 | |
| 1201 ctx->state = 0; | |
| 1202 ctx->header_sent = 0; | |
| 1203 ctx->output_closed = 0; | |
|
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1204 ctx->output_blocked = 0; |
| 7233 | 1205 ctx->parsing_headers = 0; |
| 1206 ctx->end_stream = 0; | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1207 ctx->done = 0; |
| 7233 | 1208 ctx->status = 0; |
|
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
1209 ctx->rst = 0; |
| 7233 | 1210 ctx->connection = NULL; |
| 1211 | |
| 1212 return NGX_OK; | |
| 1213 } | |
| 1214 | |
| 1215 | |
| 1216 static ngx_int_t | |
| 1217 ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in) | |
| 1218 { | |
| 1219 ngx_http_request_t *r = data; | |
| 1220 | |
| 1221 off_t file_pos; | |
| 1222 u_char *p, *pos, *start; | |
| 1223 size_t len, limit; | |
| 1224 ngx_buf_t *b; | |
| 1225 ngx_int_t rc; | |
| 1226 ngx_uint_t next, last; | |
| 1227 ngx_chain_t *cl, *out, **ll; | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1228 ngx_http_upstream_t *u; |
| 7233 | 1229 ngx_http_grpc_ctx_t *ctx; |
| 1230 ngx_http_grpc_frame_t *f; | |
| 1231 | |
| 1232 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1233 "grpc output filter"); | |
| 1234 | |
| 1235 ctx = ngx_http_grpc_get_ctx(r); | |
| 1236 | |
| 1237 if (ctx == NULL) { | |
| 1238 return NGX_ERROR; | |
| 1239 } | |
| 1240 | |
| 1241 if (in) { | |
| 1242 if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) { | |
| 1243 return NGX_ERROR; | |
| 1244 } | |
| 1245 } | |
| 1246 | |
| 1247 out = NULL; | |
| 1248 ll = &out; | |
| 1249 | |
| 1250 if (!ctx->header_sent) { | |
| 1251 /* first buffer contains headers */ | |
| 1252 | |
| 1253 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1254 "grpc output header"); | |
| 1255 | |
| 1256 ctx->header_sent = 1; | |
| 1257 | |
| 1258 if (ctx->id != 1) { | |
| 1259 /* | |
| 1260 * keepalive connection: skip connection preface, | |
| 1261 * update stream identifiers | |
| 1262 */ | |
| 1263 | |
| 1264 b = ctx->in->buf; | |
| 1265 b->pos += sizeof(ngx_http_grpc_connection_start) - 1; | |
| 1266 | |
| 1267 p = b->pos; | |
| 1268 | |
| 1269 while (p < b->last) { | |
| 1270 f = (ngx_http_grpc_frame_t *) p; | |
| 1271 p += sizeof(ngx_http_grpc_frame_t); | |
| 1272 | |
| 1273 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1274 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1275 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1276 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1277 | |
| 1278 p += (f->length_0 << 16) + (f->length_1 << 8) + f->length_2; | |
| 1279 } | |
| 1280 } | |
| 1281 | |
| 1282 if (ctx->in->buf->last_buf) { | |
| 1283 ctx->output_closed = 1; | |
| 1284 } | |
| 1285 | |
| 1286 *ll = ctx->in; | |
| 1287 ll = &ctx->in->next; | |
| 1288 | |
| 1289 ctx->in = ctx->in->next; | |
| 1290 } | |
| 1291 | |
| 1292 if (ctx->out) { | |
| 1293 /* queued control frames */ | |
| 1294 | |
| 1295 *ll = ctx->out; | |
| 1296 | |
| 1297 for (cl = ctx->out, ll = &cl->next; cl; cl = cl->next) { | |
| 1298 ll = &cl->next; | |
| 1299 } | |
| 1300 | |
| 1301 ctx->out = NULL; | |
| 1302 } | |
| 1303 | |
| 1304 f = NULL; | |
| 1305 last = 0; | |
| 1306 | |
| 1307 limit = ngx_max(0, ctx->send_window); | |
| 1308 | |
| 1309 if (limit > ctx->connection->send_window) { | |
| 1310 limit = ctx->connection->send_window; | |
| 1311 } | |
| 1312 | |
| 1313 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1314 "grpc output limit: %uz w:%z:%uz", | |
| 1315 limit, ctx->send_window, ctx->connection->send_window); | |
| 1316 | |
| 1317 #if (NGX_SUPPRESS_WARN) | |
| 1318 file_pos = 0; | |
| 1319 pos = NULL; | |
| 1320 cl = NULL; | |
| 1321 #endif | |
| 1322 | |
| 1323 in = ctx->in; | |
| 1324 | |
| 1325 while (in && limit > 0) { | |
| 1326 | |
| 1327 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
| 1328 "grpc output in l:%d f:%d %p, pos %p, size: %z " | |
| 1329 "file: %O, size: %O", | |
| 1330 in->buf->last_buf, | |
| 1331 in->buf->in_file, | |
| 1332 in->buf->start, in->buf->pos, | |
| 1333 in->buf->last - in->buf->pos, | |
| 1334 in->buf->file_pos, | |
| 1335 in->buf->file_last - in->buf->file_pos); | |
| 1336 | |
| 1337 if (ngx_buf_special(in->buf)) { | |
| 1338 goto next; | |
| 1339 } | |
| 1340 | |
| 1341 if (in->buf->in_file) { | |
| 1342 file_pos = in->buf->file_pos; | |
| 1343 | |
| 1344 } else { | |
| 1345 pos = in->buf->pos; | |
| 1346 } | |
| 1347 | |
| 1348 next = 0; | |
| 1349 | |
| 1350 do { | |
| 1351 | |
| 1352 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 1353 if (cl == NULL) { | |
| 1354 return NGX_ERROR; | |
| 1355 } | |
| 1356 | |
| 1357 b = cl->buf; | |
| 1358 | |
| 1359 f = (ngx_http_grpc_frame_t *) b->last; | |
| 1360 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1361 | |
| 1362 *ll = cl; | |
| 1363 ll = &cl->next; | |
| 1364 | |
| 1365 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
| 1366 if (cl == NULL) { | |
| 1367 return NGX_ERROR; | |
| 1368 } | |
| 1369 | |
| 1370 b = cl->buf; | |
| 1371 start = b->start; | |
| 1372 | |
| 1373 ngx_memcpy(b, in->buf, sizeof(ngx_buf_t)); | |
| 1374 | |
| 1375 /* | |
| 1376 * restore b->start to preserve memory allocated in the buffer, | |
| 1377 * to reuse it later for headers and control frames | |
| 1378 */ | |
| 1379 | |
| 1380 b->start = start; | |
| 1381 | |
| 1382 if (in->buf->in_file) { | |
| 1383 b->file_pos = file_pos; | |
| 1384 file_pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
| 1385 | |
| 1386 if (file_pos >= in->buf->file_last) { | |
| 1387 file_pos = in->buf->file_last; | |
| 1388 next = 1; | |
| 1389 } | |
| 1390 | |
| 1391 b->file_last = file_pos; | |
| 1392 len = (ngx_uint_t) (file_pos - b->file_pos); | |
| 1393 | |
| 1394 } else { | |
| 1395 b->pos = pos; | |
| 1396 pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
| 1397 | |
| 1398 if (pos >= in->buf->last) { | |
| 1399 pos = in->buf->last; | |
| 1400 next = 1; | |
| 1401 } | |
| 1402 | |
| 1403 b->last = pos; | |
| 1404 len = (ngx_uint_t) (pos - b->pos); | |
| 1405 } | |
| 1406 | |
| 1407 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; | |
| 1408 b->shadow = in->buf; | |
| 1409 b->last_shadow = next; | |
| 1410 | |
| 1411 b->last_buf = 0; | |
| 1412 b->last_in_chain = 0; | |
| 1413 | |
| 1414 *ll = cl; | |
| 1415 ll = &cl->next; | |
| 1416 | |
| 1417 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1418 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1419 f->length_2 = (u_char) (len & 0xff); | |
| 1420 f->type = NGX_HTTP_V2_DATA_FRAME; | |
| 1421 f->flags = 0; | |
| 1422 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1423 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1424 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1425 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1426 | |
| 1427 limit -= len; | |
| 1428 ctx->send_window -= len; | |
| 1429 ctx->connection->send_window -= len; | |
| 1430 | |
| 1431 } while (!next && limit > 0); | |
| 1432 | |
| 1433 if (!next) { | |
| 1434 /* | |
| 1435 * if the buffer wasn't fully sent due to flow control limits, | |
| 1436 * preserve position for future use | |
| 1437 */ | |
| 1438 | |
| 1439 if (in->buf->in_file) { | |
| 1440 in->buf->file_pos = file_pos; | |
| 1441 | |
| 1442 } else { | |
| 1443 in->buf->pos = pos; | |
| 1444 } | |
| 1445 | |
| 1446 break; | |
| 1447 } | |
| 1448 | |
| 1449 next: | |
| 1450 | |
| 1451 if (in->buf->last_buf) { | |
| 1452 last = 1; | |
| 1453 } | |
| 1454 | |
| 1455 in = in->next; | |
| 1456 } | |
| 1457 | |
| 1458 ctx->in = in; | |
| 1459 | |
| 1460 if (last) { | |
| 1461 | |
| 1462 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1463 "grpc output last"); | |
| 1464 | |
| 1465 ctx->output_closed = 1; | |
| 1466 | |
| 1467 if (f) { | |
| 1468 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1469 | |
| 1470 } else { | |
| 1471 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 1472 if (cl == NULL) { | |
| 1473 return NGX_ERROR; | |
| 1474 } | |
| 1475 | |
| 1476 b = cl->buf; | |
| 1477 | |
| 1478 f = (ngx_http_grpc_frame_t *) b->last; | |
| 1479 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1480 | |
| 1481 f->length_0 = 0; | |
| 1482 f->length_1 = 0; | |
| 1483 f->length_2 = 0; | |
| 1484 f->type = NGX_HTTP_V2_DATA_FRAME; | |
| 1485 f->flags = NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1486 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1487 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1488 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1489 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1490 | |
| 1491 *ll = cl; | |
| 1492 ll = &cl->next; | |
| 1493 } | |
| 1494 | |
| 1495 cl->buf->last_buf = 1; | |
| 1496 } | |
| 1497 | |
| 1498 *ll = NULL; | |
| 1499 | |
| 1500 #if (NGX_DEBUG) | |
| 1501 | |
| 1502 for (cl = out; cl; cl = cl->next) { | |
| 1503 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
| 1504 "grpc output out l:%d f:%d %p, pos %p, size: %z " | |
| 1505 "file: %O, size: %O", | |
| 1506 cl->buf->last_buf, | |
| 1507 cl->buf->in_file, | |
| 1508 cl->buf->start, cl->buf->pos, | |
| 1509 cl->buf->last - cl->buf->pos, | |
| 1510 cl->buf->file_pos, | |
| 1511 cl->buf->file_last - cl->buf->file_pos); | |
| 1512 } | |
| 1513 | |
| 1514 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1515 "grpc output limit: %uz w:%z:%uz", | |
| 1516 limit, ctx->send_window, ctx->connection->send_window); | |
| 1517 | |
| 1518 #endif | |
| 1519 | |
| 1520 rc = ngx_chain_writer(&r->upstream->writer, out); | |
| 1521 | |
| 1522 ngx_chain_update_chains(r->pool, &ctx->free, &ctx->busy, &out, | |
| 1523 (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter); | |
| 1524 | |
| 1525 for (cl = ctx->free; cl; cl = cl->next) { | |
| 1526 | |
| 1527 /* mark original buffers as sent */ | |
| 1528 | |
| 1529 if (cl->buf->shadow) { | |
| 1530 if (cl->buf->last_shadow) { | |
| 1531 b = cl->buf->shadow; | |
| 1532 b->pos = b->last; | |
| 1533 } | |
| 1534 | |
| 1535 cl->buf->shadow = NULL; | |
| 1536 } | |
| 1537 } | |
| 1538 | |
| 1539 if (rc == NGX_OK && ctx->in) { | |
| 1540 rc = NGX_AGAIN; | |
| 1541 } | |
| 1542 | |
|
7350
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|
1543 if (rc == NGX_AGAIN) { |
|
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parents:
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diff
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|
1544 ctx->output_blocked = 1; |
|
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|
1545 |
|
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|
1546 } else { |
|
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diff
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|
1547 ctx->output_blocked = 0; |
|
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parents:
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diff
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|
1548 } |
|
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parents:
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diff
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|
1549 |
|
7349
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|
1550 if (ctx->done) { |
|
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|
1551 |
|
f6047a579ca1
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|
1552 /* |
|
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|
1553 * We have already got the response and were sending some additional |
|
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parents:
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|
1554 * control frames. Even if there is still something unsent, stop |
|
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gRPC: improved keepalive handling.
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|
1555 * here anyway. |
|
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|
1556 */ |
|
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gRPC: improved keepalive handling.
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|
1557 |
|
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|
1558 u = r->upstream; |
|
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|
1559 u->length = 0; |
|
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|
1560 |
|
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|
1561 if (ctx->in == NULL |
|
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|
1562 && ctx->out == NULL |
|
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|
1563 && ctx->output_closed |
|
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parents:
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|
1564 && !ctx->output_blocked |
|
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1565 && ctx->state == ngx_http_grpc_st_start) |
|
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|
1566 { |
|
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|
1567 u->keepalive = 1; |
|
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|
1568 } |
|
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|
1569 |
|
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|
1570 ngx_post_event(u->peer.connection->read, &ngx_posted_events); |
|
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|
1571 } |
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|
1572 |
| 7233 | 1573 return rc; |
| 1574 } | |
| 1575 | |
| 1576 | |
| 1577 static ngx_int_t | |
| 1578 ngx_http_grpc_process_header(ngx_http_request_t *r) | |
| 1579 { | |
| 1580 ngx_str_t *status_line; | |
| 1581 ngx_int_t rc, status; | |
| 1582 ngx_buf_t *b; | |
| 1583 ngx_table_elt_t *h; | |
| 1584 ngx_http_upstream_t *u; | |
| 1585 ngx_http_grpc_ctx_t *ctx; | |
| 1586 ngx_http_upstream_header_t *hh; | |
| 1587 ngx_http_upstream_main_conf_t *umcf; | |
| 1588 | |
| 1589 u = r->upstream; | |
| 1590 b = &u->buffer; | |
| 1591 | |
| 1592 #if (NGX_DEBUG) | |
| 1593 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1594 u_char buf[512]; | |
| 1595 size_t n, m; | |
| 1596 | |
| 1597 n = ngx_min(b->last - b->pos, 256); | |
| 1598 m = ngx_hex_dump(buf, b->pos, n) - buf; | |
| 1599 | |
| 1600 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1601 "grpc response: %*s%s, len: %uz", | |
| 1602 m, buf, b->last - b->pos > 256 ? "..." : "", | |
| 1603 b->last - b->pos); | |
| 1604 } | |
| 1605 #endif | |
| 1606 | |
| 1607 ctx = ngx_http_grpc_get_ctx(r); | |
| 1608 | |
| 1609 if (ctx == NULL) { | |
| 1610 return NGX_ERROR; | |
| 1611 } | |
| 1612 | |
| 1613 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); | |
| 1614 | |
| 1615 for ( ;; ) { | |
| 1616 | |
| 1617 if (ctx->state < ngx_http_grpc_st_payload) { | |
| 1618 | |
| 1619 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
| 1620 | |
| 1621 if (rc == NGX_AGAIN) { | |
| 1622 | |
| 1623 /* | |
| 1624 * there can be a lot of window update frames, | |
| 1625 * so we reset buffer if it is empty and we haven't | |
| 1626 * started parsing headers yet | |
| 1627 */ | |
| 1628 | |
| 1629 if (!ctx->parsing_headers) { | |
| 1630 b->pos = b->start; | |
| 1631 b->last = b->pos; | |
| 1632 } | |
| 1633 | |
| 1634 return NGX_AGAIN; | |
| 1635 } | |
| 1636 | |
| 1637 if (rc == NGX_ERROR) { | |
| 1638 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1639 } | |
| 1640 | |
| 1641 /* | |
| 1642 * RFC 7540 says that implementations MUST discard frames | |
| 1643 * that have unknown or unsupported types. However, extension | |
| 1644 * frames that appear in the middle of a header block are | |
| 1645 * not permitted. Also, for obvious reasons CONTINUATION frames | |
| 1646 * cannot appear before headers, and DATA frames are not expected | |
| 1647 * to appear before all headers are parsed. | |
| 1648 */ | |
| 1649 | |
| 1650 if (ctx->type == NGX_HTTP_V2_DATA_FRAME | |
| 1651 || (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
| 1652 && !ctx->parsing_headers) | |
| 1653 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
| 1654 && ctx->parsing_headers)) | |
| 1655 { | |
| 1656 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1657 "upstream sent unexpected http2 frame: %d", | |
| 1658 ctx->type); | |
| 1659 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1660 } | |
| 1661 | |
| 1662 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
| 1663 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1664 "upstream sent frame for unknown stream %ui", | |
| 1665 ctx->stream_id); | |
| 1666 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1667 } | |
| 1668 } | |
| 1669 | |
| 1670 /* frame payload */ | |
| 1671 | |
| 1672 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
| 1673 | |
| 1674 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
| 1675 | |
| 1676 if (rc == NGX_AGAIN) { | |
| 1677 return NGX_AGAIN; | |
| 1678 } | |
| 1679 | |
| 1680 if (rc == NGX_ERROR) { | |
| 1681 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1682 } | |
| 1683 | |
| 1684 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1685 "upstream rejected request with error %ui", | |
| 1686 ctx->error); | |
| 1687 | |
| 1688 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1689 } | |
| 1690 | |
| 1691 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
| 1692 | |
| 1693 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
| 1694 | |
| 1695 if (rc == NGX_AGAIN) { | |
| 1696 return NGX_AGAIN; | |
| 1697 } | |
| 1698 | |
| 1699 if (rc == NGX_ERROR) { | |
| 1700 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1701 } | |
| 1702 | |
| 1703 /* | |
| 1704 * If stream_id is lower than one we use, our | |
| 1705 * request won't be processed and needs to be retried. | |
| 1706 * If stream_id is greater or equal to the one we use, | |
| 1707 * we can continue normally (except we can't use this | |
| 1708 * connection for additional requests). If there is | |
| 1709 * a real error, the connection will be closed. | |
| 1710 */ | |
| 1711 | |
| 1712 if (ctx->stream_id < ctx->id) { | |
| 1713 | |
| 1714 /* TODO: we can retry non-idempotent requests */ | |
| 1715 | |
| 1716 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1717 "upstream sent goaway with error %ui", | |
| 1718 ctx->error); | |
| 1719 | |
| 1720 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1721 } | |
| 1722 | |
| 1723 continue; | |
| 1724 } | |
| 1725 | |
| 1726 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
| 1727 | |
| 1728 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
| 1729 | |
| 1730 if (rc == NGX_AGAIN) { | |
| 1731 return NGX_AGAIN; | |
| 1732 } | |
| 1733 | |
| 1734 if (rc == NGX_ERROR) { | |
| 1735 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1736 } | |
| 1737 | |
| 1738 if (ctx->in) { | |
| 1739 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1740 } | |
| 1741 | |
| 1742 continue; | |
| 1743 } | |
| 1744 | |
| 1745 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
| 1746 | |
| 1747 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
| 1748 | |
| 1749 if (rc == NGX_AGAIN) { | |
| 1750 return NGX_AGAIN; | |
| 1751 } | |
| 1752 | |
| 1753 if (rc == NGX_ERROR) { | |
| 1754 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1755 } | |
| 1756 | |
| 1757 if (ctx->in) { | |
| 1758 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1759 } | |
| 1760 | |
| 1761 continue; | |
| 1762 } | |
| 1763 | |
| 1764 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
| 1765 | |
| 1766 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
| 1767 | |
| 1768 if (rc == NGX_AGAIN) { | |
| 1769 return NGX_AGAIN; | |
| 1770 } | |
| 1771 | |
| 1772 if (rc == NGX_ERROR) { | |
| 1773 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1774 } | |
| 1775 | |
| 1776 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1777 continue; | |
| 1778 } | |
| 1779 | |
| 1780 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
| 1781 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1782 "upstream sent unexpected push promise frame"); | |
| 1783 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1784 } | |
| 1785 | |
| 1786 if (ctx->type != NGX_HTTP_V2_HEADERS_FRAME | |
| 1787 && ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME) | |
| 1788 { | |
| 1789 /* priority, unknown frames */ | |
| 1790 | |
| 1791 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 1792 ctx->rest -= b->last - b->pos; | |
| 1793 b->pos = b->last; | |
| 1794 return NGX_AGAIN; | |
| 1795 } | |
| 1796 | |
| 1797 b->pos += ctx->rest; | |
| 1798 ctx->rest = 0; | |
| 1799 ctx->state = ngx_http_grpc_st_start; | |
| 1800 | |
| 1801 continue; | |
| 1802 } | |
| 1803 | |
| 1804 /* headers */ | |
| 1805 | |
| 1806 for ( ;; ) { | |
| 1807 | |
| 1808 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
| 1809 | |
| 1810 if (rc == NGX_AGAIN) { | |
| 1811 break; | |
| 1812 } | |
| 1813 | |
| 1814 if (rc == NGX_OK) { | |
| 1815 | |
| 1816 /* a header line has been parsed successfully */ | |
| 1817 | |
| 1818 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1819 "grpc header: \"%V: %V\"", | |
| 1820 &ctx->name, &ctx->value); | |
| 1821 | |
| 1822 if (ctx->name.len && ctx->name.data[0] == ':') { | |
| 1823 | |
| 1824 if (ctx->name.len != sizeof(":status") - 1 | |
| 1825 || ngx_strncmp(ctx->name.data, ":status", | |
| 1826 sizeof(":status") - 1) | |
| 1827 != 0) | |
| 1828 { | |
| 1829 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1830 "upstream sent invalid header \"%V: %V\"", | |
| 1831 &ctx->name, &ctx->value); | |
| 1832 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1833 } | |
| 1834 | |
| 1835 if (ctx->status) { | |
| 1836 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1837 "upstream sent duplicate :status header"); | |
| 1838 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1839 } | |
| 1840 | |
| 1841 status_line = &ctx->value; | |
| 1842 | |
| 1843 if (status_line->len != 3) { | |
| 1844 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1845 "upstream sent invalid :status \"%V\"", | |
| 1846 status_line); | |
| 1847 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1848 } | |
| 1849 | |
| 1850 status = ngx_atoi(status_line->data, 3); | |
| 1851 | |
| 1852 if (status == NGX_ERROR) { | |
| 1853 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1854 "upstream sent invalid :status \"%V\"", | |
| 1855 status_line); | |
| 1856 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1857 } | |
| 1858 | |
| 1859 if (status < NGX_HTTP_OK) { | |
| 1860 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1861 "upstream sent unexpected :status \"%V\"", | |
| 1862 status_line); | |
| 1863 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1864 } | |
| 1865 | |
| 1866 u->headers_in.status_n = status; | |
| 1867 | |
| 1868 if (u->state && u->state->status == 0) { | |
| 1869 u->state->status = status; | |
| 1870 } | |
| 1871 | |
| 1872 ctx->status = 1; | |
| 1873 | |
| 1874 continue; | |
| 1875 | |
| 1876 } else if (!ctx->status) { | |
| 1877 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1878 "upstream sent no :status header"); | |
| 1879 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1880 } | |
| 1881 | |
| 1882 h = ngx_list_push(&u->headers_in.headers); | |
| 1883 if (h == NULL) { | |
| 1884 return NGX_ERROR; | |
| 1885 } | |
| 1886 | |
| 1887 h->key = ctx->name; | |
| 1888 h->value = ctx->value; | |
| 1889 h->lowcase_key = h->key.data; | |
| 1890 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
| 1891 | |
| 1892 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash, | |
| 1893 h->lowcase_key, h->key.len); | |
| 1894 | |
| 1895 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) { | |
| 1896 return NGX_ERROR; | |
| 1897 } | |
| 1898 | |
| 1899 continue; | |
| 1900 } | |
| 1901 | |
| 1902 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
| 1903 | |
| 1904 /* a whole header has been parsed successfully */ | |
| 1905 | |
| 1906 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1907 "grpc header done"); | |
| 1908 | |
|
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1909 if (ctx->end_stream) { |
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1910 u->headers_in.content_length_n = 0; |
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1911 |
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1912 if (ctx->in == NULL |
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1913 && ctx->out == NULL |
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1914 && ctx->output_closed |
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1915 && !ctx->output_blocked |
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1916 && b->last == b->pos) |
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1917 { |
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1918 u->keepalive = 1; |
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1919 } |
| 7233 | 1920 } |
| 1921 | |
| 1922 return NGX_OK; | |
| 1923 } | |
| 1924 | |
| 1925 /* there was error while a header line parsing */ | |
| 1926 | |
| 1927 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1928 "upstream sent invalid header"); | |
| 1929 | |
| 1930 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1931 } | |
| 1932 | |
| 1933 /* rc == NGX_AGAIN */ | |
| 1934 | |
| 1935 if (ctx->rest == 0) { | |
| 1936 ctx->state = ngx_http_grpc_st_start; | |
| 1937 continue; | |
| 1938 } | |
| 1939 | |
| 1940 return NGX_AGAIN; | |
| 1941 } | |
| 1942 } | |
| 1943 | |
| 1944 | |
| 1945 static ngx_int_t | |
| 1946 ngx_http_grpc_filter_init(void *data) | |
| 1947 { | |
| 1948 ngx_http_grpc_ctx_t *ctx = data; | |
| 1949 | |
| 1950 ngx_http_request_t *r; | |
| 1951 ngx_http_upstream_t *u; | |
| 1952 | |
| 1953 r = ctx->request; | |
| 1954 u = r->upstream; | |
| 1955 | |
| 1956 u->length = 1; | |
| 1957 | |
| 1958 if (ctx->end_stream) { | |
| 1959 u->length = 0; | |
| 1960 } | |
| 1961 | |
| 1962 return NGX_OK; | |
| 1963 } | |
| 1964 | |
| 1965 | |
| 1966 static ngx_int_t | |
| 1967 ngx_http_grpc_filter(void *data, ssize_t bytes) | |
| 1968 { | |
| 1969 ngx_http_grpc_ctx_t *ctx = data; | |
| 1970 | |
| 1971 ngx_int_t rc; | |
| 1972 ngx_buf_t *b, *buf; | |
| 1973 ngx_chain_t *cl, **ll; | |
| 1974 ngx_table_elt_t *h; | |
| 1975 ngx_http_request_t *r; | |
| 1976 ngx_http_upstream_t *u; | |
| 1977 | |
| 1978 r = ctx->request; | |
| 1979 u = r->upstream; | |
| 1980 b = &u->buffer; | |
| 1981 | |
| 1982 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1983 "grpc filter bytes:%z", bytes); | |
| 1984 | |
| 1985 b->pos = b->last; | |
| 1986 b->last += bytes; | |
| 1987 | |
| 1988 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
| 1989 ll = &cl->next; | |
| 1990 } | |
| 1991 | |
| 1992 for ( ;; ) { | |
| 1993 | |
| 1994 if (ctx->state < ngx_http_grpc_st_payload) { | |
| 1995 | |
| 1996 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
| 1997 | |
| 1998 if (rc == NGX_AGAIN) { | |
|
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1999 |
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2000 if (ctx->done) { |
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2001 |
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2002 /* |
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2003 * We have finished parsing the response and the |
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2004 * remaining control frames. If there are unsent |
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2005 * control frames, post a write event to send them. |
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2006 */ |
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2007 |
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2008 if (ctx->out) { |
|
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2009 ngx_post_event(u->peer.connection->write, |
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2010 &ngx_posted_events); |
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2011 return NGX_AGAIN; |
|
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2012 } |
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2013 |
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2014 u->length = 0; |
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2015 |
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2016 if (ctx->in == NULL |
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2017 && ctx->output_closed |
|
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2018 && !ctx->output_blocked |
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2019 && ctx->state == ngx_http_grpc_st_start) |
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2020 { |
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2021 u->keepalive = 1; |
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2022 } |
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2023 |
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2024 break; |
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2025 } |
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2026 |
| 7233 | 2027 return NGX_AGAIN; |
| 2028 } | |
| 2029 | |
| 2030 if (rc == NGX_ERROR) { | |
| 2031 return NGX_ERROR; | |
| 2032 } | |
| 2033 | |
| 2034 if ((ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
| 2035 && !ctx->parsing_headers) | |
| 2036 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
| 2037 && ctx->parsing_headers)) | |
| 2038 { | |
| 2039 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2040 "upstream sent unexpected http2 frame: %d", | |
| 2041 ctx->type); | |
| 2042 return NGX_ERROR; | |
| 2043 } | |
| 2044 | |
| 2045 if (ctx->type == NGX_HTTP_V2_DATA_FRAME) { | |
| 2046 | |
| 2047 if (ctx->stream_id != ctx->id) { | |
| 2048 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2049 "upstream sent data frame " | |
| 2050 "for unknown stream %ui", | |
| 2051 ctx->stream_id); | |
| 2052 return NGX_ERROR; | |
| 2053 } | |
| 2054 | |
| 2055 if (ctx->rest > ctx->recv_window) { | |
| 2056 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2057 "upstream violated stream flow control, " | |
| 2058 "received %uz data frame with window %uz", | |
| 2059 ctx->rest, ctx->recv_window); | |
| 2060 return NGX_ERROR; | |
| 2061 } | |
| 2062 | |
| 2063 if (ctx->rest > ctx->connection->recv_window) { | |
| 2064 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2065 "upstream violated connection flow control, " | |
| 2066 "received %uz data frame with window %uz", | |
| 2067 ctx->rest, ctx->connection->recv_window); | |
| 2068 return NGX_ERROR; | |
| 2069 } | |
| 2070 | |
| 2071 ctx->recv_window -= ctx->rest; | |
| 2072 ctx->connection->recv_window -= ctx->rest; | |
| 2073 | |
| 2074 if (ctx->connection->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4 | |
| 2075 || ctx->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4) | |
| 2076 { | |
| 2077 if (ngx_http_grpc_send_window_update(r, ctx) != NGX_OK) { | |
| 2078 return NGX_ERROR; | |
| 2079 } | |
| 2080 | |
| 2081 ngx_post_event(u->peer.connection->write, | |
| 2082 &ngx_posted_events); | |
| 2083 } | |
| 2084 } | |
| 2085 | |
| 2086 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
| 2087 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2088 "upstream sent frame for unknown stream %ui", | |
| 2089 ctx->stream_id); | |
| 2090 return NGX_ERROR; | |
| 2091 } | |
| 2092 | |
|
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2093 if (ctx->stream_id && ctx->done |
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2094 && ctx->type != NGX_HTTP_V2_RST_STREAM_FRAME) |
|
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|
2095 { |
|
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2096 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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|
2097 "upstream sent frame for closed stream %ui", |
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|
2098 ctx->stream_id); |
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2099 return NGX_ERROR; |
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2100 } |
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|
2101 |
| 7233 | 2102 ctx->padding = 0; |
| 2103 } | |
| 2104 | |
| 2105 if (ctx->state == ngx_http_grpc_st_padding) { | |
| 2106 | |
| 2107 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2108 ctx->rest -= b->last - b->pos; | |
| 2109 b->pos = b->last; | |
| 2110 return NGX_AGAIN; | |
| 2111 } | |
| 2112 | |
| 2113 b->pos += ctx->rest; | |
| 2114 ctx->rest = 0; | |
| 2115 ctx->state = ngx_http_grpc_st_start; | |
| 2116 | |
| 2117 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
|
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|
2118 ctx->done = 1; |
| 7233 | 2119 } |
| 2120 | |
| 2121 continue; | |
| 2122 } | |
| 2123 | |
| 2124 /* frame payload */ | |
| 2125 | |
| 2126 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
| 2127 | |
| 2128 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
| 2129 | |
| 2130 if (rc == NGX_AGAIN) { | |
| 2131 return NGX_AGAIN; | |
| 2132 } | |
| 2133 | |
| 2134 if (rc == NGX_ERROR) { | |
| 2135 return NGX_ERROR; | |
| 2136 } | |
| 2137 | |
|
7646
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gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2138 if (ctx->error || !ctx->done) { |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2139 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
|
2140 "upstream rejected request with error %ui", |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2141 ctx->error); |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2142 return NGX_ERROR; |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2143 } |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2144 |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2145 if (ctx->rst) { |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2146 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
|
2147 "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
|
2148 ctx->stream_id); |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2149 return NGX_ERROR; |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2150 } |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2151 |
|
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2152 ctx->rst = 1; |
| 7233 | 2153 } |
| 2154 | |
| 2155 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
| 2156 | |
| 2157 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
| 2158 | |
| 2159 if (rc == NGX_AGAIN) { | |
| 2160 return NGX_AGAIN; | |
| 2161 } | |
| 2162 | |
| 2163 if (rc == NGX_ERROR) { | |
| 2164 return NGX_ERROR; | |
| 2165 } | |
| 2166 | |
| 2167 /* | |
| 2168 * If stream_id is lower than one we use, our | |
| 2169 * request won't be processed and needs to be retried. | |
| 2170 * If stream_id is greater or equal to the one we use, | |
| 2171 * we can continue normally (except we can't use this | |
| 2172 * connection for additional requests). If there is | |
| 2173 * a real error, the connection will be closed. | |
| 2174 */ | |
| 2175 | |
| 2176 if (ctx->stream_id < ctx->id) { | |
| 2177 | |
| 2178 /* TODO: we can retry non-idempotent requests */ | |
| 2179 | |
| 2180 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2181 "upstream sent goaway with error %ui", | |
| 2182 ctx->error); | |
| 2183 | |
| 2184 return NGX_ERROR; | |
| 2185 } | |
| 2186 | |
| 2187 continue; | |
| 2188 } | |
| 2189 | |
| 2190 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
| 2191 | |
| 2192 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
| 2193 | |
| 2194 if (rc == NGX_AGAIN) { | |
| 2195 return NGX_AGAIN; | |
| 2196 } | |
| 2197 | |
| 2198 if (rc == NGX_ERROR) { | |
| 2199 return NGX_ERROR; | |
| 2200 } | |
| 2201 | |
| 2202 if (ctx->in) { | |
| 2203 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2204 } | |
| 2205 | |
| 2206 continue; | |
| 2207 } | |
| 2208 | |
| 2209 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
| 2210 | |
| 2211 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
| 2212 | |
| 2213 if (rc == NGX_AGAIN) { | |
| 2214 return NGX_AGAIN; | |
| 2215 } | |
| 2216 | |
| 2217 if (rc == NGX_ERROR) { | |
| 2218 return NGX_ERROR; | |
| 2219 } | |
| 2220 | |
| 2221 if (ctx->in) { | |
| 2222 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2223 } | |
| 2224 | |
| 2225 continue; | |
| 2226 } | |
| 2227 | |
| 2228 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
| 2229 | |
| 2230 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
| 2231 | |
| 2232 if (rc == NGX_AGAIN) { | |
| 2233 return NGX_AGAIN; | |
| 2234 } | |
| 2235 | |
| 2236 if (rc == NGX_ERROR) { | |
| 2237 return NGX_ERROR; | |
| 2238 } | |
| 2239 | |
| 2240 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2241 continue; | |
| 2242 } | |
| 2243 | |
| 2244 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
| 2245 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2246 "upstream sent unexpected push promise frame"); | |
| 2247 return NGX_ERROR; | |
| 2248 } | |
| 2249 | |
| 2250 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME | |
| 2251 || ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) | |
| 2252 { | |
| 2253 for ( ;; ) { | |
| 2254 | |
| 2255 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
| 2256 | |
| 2257 if (rc == NGX_AGAIN) { | |
| 2258 break; | |
| 2259 } | |
| 2260 | |
| 2261 if (rc == NGX_OK) { | |
| 2262 | |
| 2263 /* a header line has been parsed successfully */ | |
| 2264 | |
| 2265 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2266 "grpc trailer: \"%V: %V\"", | |
| 2267 &ctx->name, &ctx->value); | |
| 2268 | |
| 2269 if (ctx->name.len && ctx->name.data[0] == ':') { | |
| 2270 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2271 "upstream sent invalid " | |
| 2272 "trailer \"%V: %V\"", | |
| 2273 &ctx->name, &ctx->value); | |
| 2274 return NGX_ERROR; | |
| 2275 } | |
| 2276 | |
| 2277 h = ngx_list_push(&u->headers_in.trailers); | |
| 2278 if (h == NULL) { | |
| 2279 return NGX_ERROR; | |
| 2280 } | |
| 2281 | |
| 2282 h->key = ctx->name; | |
| 2283 h->value = ctx->value; | |
| 2284 h->lowcase_key = h->key.data; | |
| 2285 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
| 2286 | |
| 2287 continue; | |
| 2288 } | |
| 2289 | |
| 2290 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
| 2291 | |
| 2292 /* a whole header has been parsed successfully */ | |
| 2293 | |
| 2294 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2295 "grpc trailer done"); | |
| 2296 | |
| 2297 if (ctx->end_stream) { | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2298 ctx->done = 1; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2299 break; |
| 7233 | 2300 } |
| 2301 | |
| 2302 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2303 "upstream sent trailer without " | |
| 2304 "end stream flag"); | |
| 2305 return NGX_ERROR; | |
| 2306 } | |
| 2307 | |
| 2308 /* there was error while a header line parsing */ | |
| 2309 | |
| 2310 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2311 "upstream sent invalid trailer"); | |
| 2312 | |
| 2313 return NGX_ERROR; | |
| 2314 } | |
| 2315 | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2316 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2317 continue; |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2318 } |
|
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2319 |
| 7233 | 2320 /* rc == NGX_AGAIN */ |
| 2321 | |
| 2322 if (ctx->rest == 0) { | |
| 2323 ctx->state = ngx_http_grpc_st_start; | |
| 2324 continue; | |
| 2325 } | |
| 2326 | |
| 2327 return NGX_AGAIN; | |
| 2328 } | |
| 2329 | |
| 2330 if (ctx->type != NGX_HTTP_V2_DATA_FRAME) { | |
| 2331 | |
| 2332 /* priority, unknown frames */ | |
| 2333 | |
| 2334 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2335 ctx->rest -= b->last - b->pos; | |
| 2336 b->pos = b->last; | |
| 2337 return NGX_AGAIN; | |
| 2338 } | |
| 2339 | |
| 2340 b->pos += ctx->rest; | |
| 2341 ctx->rest = 0; | |
| 2342 ctx->state = ngx_http_grpc_st_start; | |
| 2343 | |
| 2344 continue; | |
| 2345 } | |
| 2346 | |
| 2347 /* | |
| 2348 * data frame: | |
| 2349 * | |
| 2350 * +---------------+ | |
| 2351 * |Pad Length? (8)| | |
| 2352 * +---------------+-----------------------------------------------+ | |
| 2353 * | Data (*) ... | |
| 2354 * +---------------------------------------------------------------+ | |
| 2355 * | Padding (*) ... | |
| 2356 * +---------------------------------------------------------------+ | |
| 2357 */ | |
| 2358 | |
| 2359 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
| 2360 | |
| 2361 if (ctx->rest == 0) { | |
| 2362 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2363 "upstream sent too short http2 frame"); | |
| 2364 return NGX_ERROR; | |
| 2365 } | |
| 2366 | |
| 2367 if (b->pos == b->last) { | |
| 2368 return NGX_AGAIN; | |
| 2369 } | |
| 2370 | |
| 2371 ctx->flags &= ~NGX_HTTP_V2_PADDED_FLAG; | |
| 2372 ctx->padding = *b->pos++; | |
| 2373 ctx->rest -= 1; | |
| 2374 | |
| 2375 if (ctx->padding > ctx->rest) { | |
| 2376 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2377 "upstream sent http2 frame with too long " | |
| 2378 "padding: %d in frame %uz", | |
| 2379 ctx->padding, ctx->rest); | |
| 2380 return NGX_ERROR; | |
| 2381 } | |
| 2382 | |
| 2383 continue; | |
| 2384 } | |
| 2385 | |
| 2386 if (ctx->rest == ctx->padding) { | |
| 2387 goto done; | |
| 2388 } | |
| 2389 | |
| 2390 if (b->pos == b->last) { | |
| 2391 return NGX_AGAIN; | |
| 2392 } | |
| 2393 | |
| 2394 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
| 2395 if (cl == NULL) { | |
| 2396 return NGX_ERROR; | |
| 2397 } | |
| 2398 | |
| 2399 *ll = cl; | |
| 2400 ll = &cl->next; | |
| 2401 | |
| 2402 buf = cl->buf; | |
| 2403 | |
| 2404 buf->flush = 1; | |
| 2405 buf->memory = 1; | |
| 2406 | |
| 2407 buf->pos = b->pos; | |
| 2408 buf->tag = u->output.tag; | |
| 2409 | |
| 2410 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2411 "grpc output buf %p", buf->pos); | |
| 2412 | |
| 2413 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
| 2414 | |
| 2415 ctx->rest -= b->last - b->pos; | |
| 2416 b->pos = b->last; | |
| 2417 buf->last = b->pos; | |
| 2418 | |
| 2419 return NGX_AGAIN; | |
| 2420 } | |
| 2421 | |
| 2422 b->pos += ctx->rest - ctx->padding; | |
| 2423 buf->last = b->pos; | |
| 2424 ctx->rest = ctx->padding; | |
| 2425 | |
| 2426 done: | |
| 2427 | |
| 2428 if (ctx->padding) { | |
| 2429 ctx->state = ngx_http_grpc_st_padding; | |
| 2430 continue; | |
| 2431 } | |
| 2432 | |
| 2433 ctx->state = ngx_http_grpc_st_start; | |
| 2434 | |
| 2435 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2436 ctx->done = 1; |
| 7233 | 2437 } |
| 2438 } | |
| 2439 | |
| 2440 return NGX_OK; | |
| 2441 } | |
| 2442 | |
| 2443 | |
| 2444 static ngx_int_t | |
| 2445 ngx_http_grpc_parse_frame(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2446 ngx_buf_t *b) | |
| 2447 { | |
| 2448 u_char ch, *p; | |
| 2449 ngx_http_grpc_state_e state; | |
| 2450 | |
| 2451 state = ctx->state; | |
| 2452 | |
| 2453 for (p = b->pos; p < b->last; p++) { | |
| 2454 ch = *p; | |
| 2455 | |
| 2456 #if 0 | |
| 2457 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2458 "grpc frame byte: %02Xd, s:%d", ch, state); | |
| 2459 #endif | |
| 2460 | |
| 2461 switch (state) { | |
| 2462 | |
| 2463 case ngx_http_grpc_st_start: | |
| 2464 ctx->rest = ch << 16; | |
| 2465 state = ngx_http_grpc_st_length_2; | |
| 2466 break; | |
| 2467 | |
| 2468 case ngx_http_grpc_st_length_2: | |
| 2469 ctx->rest |= ch << 8; | |
| 2470 state = ngx_http_grpc_st_length_3; | |
| 2471 break; | |
| 2472 | |
| 2473 case ngx_http_grpc_st_length_3: | |
| 2474 ctx->rest |= ch; | |
| 2475 | |
| 2476 if (ctx->rest > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 2477 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2478 "upstream sent too large http2 frame: %uz", | |
| 2479 ctx->rest); | |
| 2480 return NGX_ERROR; | |
| 2481 } | |
| 2482 | |
| 2483 state = ngx_http_grpc_st_type; | |
| 2484 break; | |
| 2485 | |
| 2486 case ngx_http_grpc_st_type: | |
| 2487 ctx->type = ch; | |
| 2488 state = ngx_http_grpc_st_flags; | |
| 2489 break; | |
| 2490 | |
| 2491 case ngx_http_grpc_st_flags: | |
| 2492 ctx->flags = ch; | |
| 2493 state = ngx_http_grpc_st_stream_id; | |
| 2494 break; | |
| 2495 | |
| 2496 case ngx_http_grpc_st_stream_id: | |
| 2497 ctx->stream_id = (ch & 0x7f) << 24; | |
| 2498 state = ngx_http_grpc_st_stream_id_2; | |
| 2499 break; | |
| 2500 | |
| 2501 case ngx_http_grpc_st_stream_id_2: | |
| 2502 ctx->stream_id |= ch << 16; | |
| 2503 state = ngx_http_grpc_st_stream_id_3; | |
| 2504 break; | |
| 2505 | |
| 2506 case ngx_http_grpc_st_stream_id_3: | |
| 2507 ctx->stream_id |= ch << 8; | |
| 2508 state = ngx_http_grpc_st_stream_id_4; | |
| 2509 break; | |
| 2510 | |
| 2511 case ngx_http_grpc_st_stream_id_4: | |
| 2512 ctx->stream_id |= ch; | |
| 2513 | |
| 2514 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2515 "grpc frame: %d, len: %uz, f:%d, i:%ui", | |
| 2516 ctx->type, ctx->rest, ctx->flags, ctx->stream_id); | |
| 2517 | |
| 2518 b->pos = p + 1; | |
| 2519 | |
| 2520 ctx->state = ngx_http_grpc_st_payload; | |
| 2521 ctx->frame_state = 0; | |
| 2522 | |
| 2523 return NGX_OK; | |
| 2524 | |
| 2525 /* suppress warning */ | |
| 2526 case ngx_http_grpc_st_payload: | |
| 2527 case ngx_http_grpc_st_padding: | |
| 2528 break; | |
| 2529 } | |
| 2530 } | |
| 2531 | |
| 2532 b->pos = p; | |
| 2533 ctx->state = state; | |
| 2534 | |
| 2535 return NGX_AGAIN; | |
| 2536 } | |
| 2537 | |
| 2538 | |
| 2539 static ngx_int_t | |
| 2540 ngx_http_grpc_parse_header(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2541 ngx_buf_t *b) | |
| 2542 { | |
| 2543 u_char ch, *p, *last; | |
| 2544 size_t min; | |
| 2545 ngx_int_t rc; | |
| 2546 enum { | |
| 2547 sw_start = 0, | |
| 2548 sw_padding_length, | |
| 2549 sw_dependency, | |
| 2550 sw_dependency_2, | |
| 2551 sw_dependency_3, | |
| 2552 sw_dependency_4, | |
| 2553 sw_weight, | |
| 2554 sw_fragment, | |
| 2555 sw_padding | |
| 2556 } state; | |
| 2557 | |
| 2558 state = ctx->frame_state; | |
| 2559 | |
| 2560 if (state == sw_start) { | |
| 2561 | |
| 2562 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2563 "grpc parse header: start"); | |
| 2564 | |
| 2565 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME) { | |
| 2566 ctx->parsing_headers = 1; | |
| 2567 ctx->fragment_state = 0; | |
| 2568 | |
| 2569 min = (ctx->flags & NGX_HTTP_V2_PADDED_FLAG ? 1 : 0) | |
| 2570 + (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG ? 5 : 0); | |
| 2571 | |
| 2572 if (ctx->rest < min) { | |
| 2573 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2574 "upstream sent headers frame " | |
| 2575 "with invalid length: %uz", | |
| 2576 ctx->rest); | |
| 2577 return NGX_ERROR; | |
| 2578 } | |
| 2579 | |
| 2580 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
| 2581 ctx->end_stream = 1; | |
| 2582 } | |
| 2583 | |
| 2584 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
| 2585 state = sw_padding_length; | |
| 2586 | |
| 2587 } else if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
| 2588 state = sw_dependency; | |
| 2589 | |
| 2590 } else { | |
| 2591 state = sw_fragment; | |
| 2592 } | |
| 2593 | |
| 2594 } else if (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) { | |
| 2595 state = sw_fragment; | |
| 2596 } | |
| 2597 | |
| 2598 ctx->padding = 0; | |
|
7242
25a4353633a0
gRPC: fixed missing state save in frame header parsing.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7240
diff
changeset
|
2599 ctx->frame_state = state; |
| 7233 | 2600 } |
| 2601 | |
| 2602 if (state < sw_fragment) { | |
| 2603 | |
| 2604 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2605 last = b->last; | |
| 2606 | |
| 2607 } else { | |
| 2608 last = b->pos + ctx->rest; | |
| 2609 } | |
| 2610 | |
| 2611 for (p = b->pos; p < last; p++) { | |
| 2612 ch = *p; | |
| 2613 | |
| 2614 #if 0 | |
| 2615 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2616 "grpc header byte: %02Xd s:%d", ch, state); | |
| 2617 #endif | |
| 2618 | |
| 2619 /* | |
| 2620 * headers frame: | |
| 2621 * | |
| 2622 * +---------------+ | |
| 2623 * |Pad Length? (8)| | |
| 2624 * +-+-------------+----------------------------------------------+ | |
| 2625 * |E| Stream Dependency? (31) | | |
| 2626 * +-+-------------+----------------------------------------------+ | |
| 2627 * | Weight? (8) | | |
| 2628 * +-+-------------+----------------------------------------------+ | |
| 2629 * | Header Block Fragment (*) ... | |
| 2630 * +--------------------------------------------------------------+ | |
| 2631 * | Padding (*) ... | |
| 2632 * +--------------------------------------------------------------+ | |
| 2633 */ | |
| 2634 | |
| 2635 switch (state) { | |
| 2636 | |
| 2637 case sw_padding_length: | |
| 2638 | |
| 2639 ctx->padding = ch; | |
| 2640 | |
| 2641 if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
| 2642 state = sw_dependency; | |
| 2643 break; | |
| 2644 } | |
| 2645 | |
| 2646 goto fragment; | |
| 2647 | |
| 2648 case sw_dependency: | |
| 2649 state = sw_dependency_2; | |
| 2650 break; | |
| 2651 | |
| 2652 case sw_dependency_2: | |
| 2653 state = sw_dependency_3; | |
| 2654 break; | |
| 2655 | |
| 2656 case sw_dependency_3: | |
| 2657 state = sw_dependency_4; | |
| 2658 break; | |
| 2659 | |
| 2660 case sw_dependency_4: | |
| 2661 state = sw_weight; | |
| 2662 break; | |
| 2663 | |
| 2664 case sw_weight: | |
| 2665 goto fragment; | |
| 2666 | |
| 2667 /* suppress warning */ | |
| 2668 case sw_start: | |
| 2669 case sw_fragment: | |
| 2670 case sw_padding: | |
| 2671 break; | |
| 2672 } | |
| 2673 } | |
| 2674 | |
| 2675 ctx->rest -= p - b->pos; | |
| 2676 b->pos = p; | |
| 2677 | |
| 2678 ctx->frame_state = state; | |
| 2679 return NGX_AGAIN; | |
| 2680 | |
| 2681 fragment: | |
| 2682 | |
| 2683 p++; | |
| 2684 ctx->rest -= p - b->pos; | |
| 2685 b->pos = p; | |
| 2686 | |
| 2687 if (ctx->padding > ctx->rest) { | |
| 2688 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2689 "upstream sent http2 frame with too long " | |
| 2690 "padding: %d in frame %uz", | |
| 2691 ctx->padding, ctx->rest); | |
| 2692 return NGX_ERROR; | |
| 2693 } | |
| 2694 | |
| 2695 state = sw_fragment; | |
| 2696 ctx->frame_state = state; | |
| 2697 } | |
| 2698 | |
| 2699 if (state == sw_fragment) { | |
| 2700 | |
| 2701 rc = ngx_http_grpc_parse_fragment(r, ctx, b); | |
| 2702 | |
| 2703 if (rc == NGX_AGAIN) { | |
| 2704 return NGX_AGAIN; | |
| 2705 } | |
| 2706 | |
| 2707 if (rc == NGX_ERROR) { | |
| 2708 return NGX_ERROR; | |
| 2709 } | |
| 2710 | |
| 2711 if (rc == NGX_OK) { | |
| 2712 return NGX_OK; | |
| 2713 } | |
| 2714 | |
| 2715 /* rc == NGX_DONE */ | |
| 2716 | |
| 2717 state = sw_padding; | |
| 2718 ctx->frame_state = state; | |
| 2719 } | |
| 2720 | |
| 2721 if (state == sw_padding) { | |
| 2722 | |
| 2723 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2724 | |
| 2725 ctx->rest -= b->last - b->pos; | |
| 2726 b->pos = b->last; | |
| 2727 | |
| 2728 return NGX_AGAIN; | |
| 2729 } | |
| 2730 | |
| 2731 b->pos += ctx->rest; | |
| 2732 ctx->rest = 0; | |
| 2733 | |
| 2734 ctx->state = ngx_http_grpc_st_start; | |
| 2735 | |
| 2736 if (ctx->flags & NGX_HTTP_V2_END_HEADERS_FLAG) { | |
| 2737 | |
| 2738 if (ctx->fragment_state) { | |
| 2739 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2740 "upstream sent truncated http2 header"); | |
| 2741 return NGX_ERROR; | |
| 2742 } | |
| 2743 | |
| 2744 ctx->parsing_headers = 0; | |
| 2745 | |
| 2746 return NGX_HTTP_PARSE_HEADER_DONE; | |
| 2747 } | |
| 2748 | |
| 2749 return NGX_AGAIN; | |
| 2750 } | |
| 2751 | |
| 2752 /* unreachable */ | |
| 2753 | |
| 2754 return NGX_ERROR; | |
| 2755 } | |
| 2756 | |
| 2757 | |
| 2758 static ngx_int_t | |
| 2759 ngx_http_grpc_parse_fragment(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2760 ngx_buf_t *b) | |
| 2761 { | |
| 2762 u_char ch, *p, *last; | |
| 2763 size_t size; | |
| 2764 ngx_uint_t index, size_update; | |
| 2765 enum { | |
| 2766 sw_start = 0, | |
| 2767 sw_index, | |
| 2768 sw_name_length, | |
| 2769 sw_name_length_2, | |
| 2770 sw_name_length_3, | |
| 2771 sw_name_length_4, | |
| 2772 sw_name, | |
| 2773 sw_name_bytes, | |
| 2774 sw_value_length, | |
| 2775 sw_value_length_2, | |
| 2776 sw_value_length_3, | |
| 2777 sw_value_length_4, | |
| 2778 sw_value, | |
| 2779 sw_value_bytes | |
| 2780 } state; | |
| 2781 | |
| 2782 /* header block fragment */ | |
| 2783 | |
| 2784 #if 0 | |
| 2785 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2786 "grpc header fragment %p:%p rest:%uz", | |
| 2787 b->pos, b->last, ctx->rest); | |
| 2788 #endif | |
| 2789 | |
| 2790 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
| 2791 last = b->last; | |
| 2792 | |
| 2793 } else { | |
| 2794 last = b->pos + ctx->rest - ctx->padding; | |
| 2795 } | |
| 2796 | |
| 2797 state = ctx->fragment_state; | |
| 2798 | |
| 2799 for (p = b->pos; p < last; p++) { | |
| 2800 ch = *p; | |
| 2801 | |
| 2802 #if 0 | |
| 2803 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2804 "grpc header byte: %02Xd s:%d", ch, state); | |
| 2805 #endif | |
| 2806 | |
| 2807 switch (state) { | |
| 2808 | |
| 2809 case sw_start: | |
| 2810 ctx->index = 0; | |
| 2811 | |
| 2812 if ((ch & 0x80) == 0x80) { | |
| 2813 /* | |
| 2814 * indexed header: | |
| 2815 * | |
| 2816 * 0 1 2 3 4 5 6 7 | |
| 2817 * +---+---+---+---+---+---+---+---+ | |
| 2818 * | 1 | Index (7+) | | |
| 2819 * +---+---------------------------+ | |
| 2820 */ | |
| 2821 | |
| 2822 index = ch & ~0x80; | |
| 2823 | |
| 2824 if (index == 0 || index > 61) { | |
| 2825 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2826 "upstream sent invalid http2 " | |
| 2827 "table index: %ui", index); | |
| 2828 return NGX_ERROR; | |
| 2829 } | |
| 2830 | |
| 2831 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2832 "grpc indexed header: %ui", index); | |
| 2833 | |
| 2834 ctx->index = index; | |
| 2835 ctx->literal = 0; | |
| 2836 | |
| 2837 goto done; | |
| 2838 | |
| 2839 } else if ((ch & 0xc0) == 0x40) { | |
| 2840 /* | |
| 2841 * literal header with incremental indexing: | |
| 2842 * | |
| 2843 * 0 1 2 3 4 5 6 7 | |
| 2844 * +---+---+---+---+---+---+---+---+ | |
| 2845 * | 0 | 1 | Index (6+) | | |
| 2846 * +---+---+-----------------------+ | |
| 2847 * | H | Value Length (7+) | | |
| 2848 * +---+---------------------------+ | |
| 2849 * | Value String (Length octets) | | |
| 2850 * +-------------------------------+ | |
| 2851 * | |
| 2852 * 0 1 2 3 4 5 6 7 | |
| 2853 * +---+---+---+---+---+---+---+---+ | |
| 2854 * | 0 | 1 | 0 | | |
| 2855 * +---+---+-----------------------+ | |
| 2856 * | H | Name Length (7+) | | |
| 2857 * +---+---------------------------+ | |
| 2858 * | Name String (Length octets) | | |
| 2859 * +---+---------------------------+ | |
| 2860 * | H | Value Length (7+) | | |
| 2861 * +---+---------------------------+ | |
| 2862 * | Value String (Length octets) | | |
| 2863 * +-------------------------------+ | |
| 2864 */ | |
| 2865 | |
| 2866 index = ch & ~0xc0; | |
| 2867 | |
| 2868 if (index > 61) { | |
| 2869 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2870 "upstream sent invalid http2 " | |
| 2871 "table index: %ui", index); | |
| 2872 return NGX_ERROR; | |
| 2873 } | |
| 2874 | |
| 2875 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2876 "grpc literal header: %ui", index); | |
| 2877 | |
| 2878 if (index == 0) { | |
| 2879 state = sw_name_length; | |
| 2880 break; | |
| 2881 } | |
| 2882 | |
| 2883 ctx->index = index; | |
| 2884 ctx->literal = 1; | |
| 2885 | |
| 2886 state = sw_value_length; | |
| 2887 break; | |
| 2888 | |
| 2889 } else if ((ch & 0xe0) == 0x20) { | |
| 2890 /* | |
| 2891 * dynamic table size update: | |
| 2892 * | |
| 2893 * 0 1 2 3 4 5 6 7 | |
| 2894 * +---+---+---+---+---+---+---+---+ | |
| 2895 * | 0 | 0 | 1 | Max size (5+) | | |
| 2896 * +---+---------------------------+ | |
| 2897 */ | |
| 2898 | |
| 2899 size_update = ch & ~0xe0; | |
| 2900 | |
| 2901 if (size_update > 0) { | |
| 2902 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2903 "upstream sent invalid http2 " | |
| 2904 "dynamic table size update: %ui", | |
| 2905 size_update); | |
| 2906 return NGX_ERROR; | |
| 2907 } | |
| 2908 | |
| 2909 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2910 "grpc table size update: %ui", size_update); | |
| 2911 | |
| 2912 break; | |
| 2913 | |
| 2914 } else if ((ch & 0xf0) == 0x10) { | |
| 2915 /* | |
| 2916 * literal header field never indexed: | |
| 2917 * | |
| 2918 * 0 1 2 3 4 5 6 7 | |
| 2919 * +---+---+---+---+---+---+---+---+ | |
| 2920 * | 0 | 0 | 0 | 1 | Index (4+) | | |
| 2921 * +---+---+-----------------------+ | |
| 2922 * | H | Value Length (7+) | | |
| 2923 * +---+---------------------------+ | |
| 2924 * | Value String (Length octets) | | |
| 2925 * +-------------------------------+ | |
| 2926 * | |
| 2927 * 0 1 2 3 4 5 6 7 | |
| 2928 * +---+---+---+---+---+---+---+---+ | |
| 2929 * | 0 | 0 | 0 | 1 | 0 | | |
| 2930 * +---+---+-----------------------+ | |
| 2931 * | H | Name Length (7+) | | |
| 2932 * +---+---------------------------+ | |
| 2933 * | Name String (Length octets) | | |
| 2934 * +---+---------------------------+ | |
| 2935 * | H | Value Length (7+) | | |
| 2936 * +---+---------------------------+ | |
| 2937 * | Value String (Length octets) | | |
| 2938 * +-------------------------------+ | |
| 2939 */ | |
| 2940 | |
| 2941 index = ch & ~0xf0; | |
| 2942 | |
| 2943 if (index == 0x0f) { | |
| 2944 ctx->index = index; | |
| 2945 ctx->literal = 1; | |
| 2946 state = sw_index; | |
| 2947 break; | |
| 2948 } | |
| 2949 | |
| 2950 if (index == 0) { | |
| 2951 state = sw_name_length; | |
| 2952 break; | |
| 2953 } | |
| 2954 | |
| 2955 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2956 "grpc literal header never indexed: %ui", | |
| 2957 index); | |
| 2958 | |
| 2959 ctx->index = index; | |
| 2960 ctx->literal = 1; | |
| 2961 | |
| 2962 state = sw_value_length; | |
| 2963 break; | |
| 2964 | |
| 2965 } else if ((ch & 0xf0) == 0x00) { | |
| 2966 /* | |
| 2967 * literal header field without indexing: | |
| 2968 * | |
| 2969 * 0 1 2 3 4 5 6 7 | |
| 2970 * +---+---+---+---+---+---+---+---+ | |
| 2971 * | 0 | 0 | 0 | 0 | Index (4+) | | |
| 2972 * +---+---+-----------------------+ | |
| 2973 * | H | Value Length (7+) | | |
| 2974 * +---+---------------------------+ | |
| 2975 * | Value String (Length octets) | | |
| 2976 * +-------------------------------+ | |
| 2977 * | |
| 2978 * 0 1 2 3 4 5 6 7 | |
| 2979 * +---+---+---+---+---+---+---+---+ | |
| 2980 * | 0 | 0 | 0 | 0 | 0 | | |
| 2981 * +---+---+-----------------------+ | |
| 2982 * | H | Name Length (7+) | | |
| 2983 * +---+---------------------------+ | |
| 2984 * | Name String (Length octets) | | |
| 2985 * +---+---------------------------+ | |
| 2986 * | H | Value Length (7+) | | |
| 2987 * +---+---------------------------+ | |
| 2988 * | Value String (Length octets) | | |
| 2989 * +-------------------------------+ | |
| 2990 */ | |
| 2991 | |
| 2992 index = ch & ~0xf0; | |
| 2993 | |
| 2994 if (index == 0x0f) { | |
| 2995 ctx->index = index; | |
| 2996 ctx->literal = 1; | |
| 2997 state = sw_index; | |
| 2998 break; | |
| 2999 } | |
| 3000 | |
| 3001 if (index == 0) { | |
| 3002 state = sw_name_length; | |
| 3003 break; | |
| 3004 } | |
| 3005 | |
| 3006 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3007 "grpc literal header without indexing: %ui", | |
| 3008 index); | |
| 3009 | |
| 3010 ctx->index = index; | |
| 3011 ctx->literal = 1; | |
| 3012 | |
| 3013 state = sw_value_length; | |
| 3014 break; | |
| 3015 } | |
| 3016 | |
| 3017 /* not reached */ | |
| 3018 | |
| 3019 return NGX_ERROR; | |
| 3020 | |
| 3021 case sw_index: | |
| 3022 ctx->index = ctx->index + (ch & ~0x80); | |
| 3023 | |
| 3024 if (ch & 0x80) { | |
| 3025 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3026 "upstream sent http2 table index " | |
| 3027 "with continuation flag"); | |
| 3028 return NGX_ERROR; | |
| 3029 } | |
| 3030 | |
| 3031 if (ctx->index > 61) { | |
| 3032 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3033 "upstream sent invalid http2 " | |
| 3034 "table index: %ui", ctx->index); | |
| 3035 return NGX_ERROR; | |
| 3036 } | |
| 3037 | |
| 3038 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3039 "grpc header index: %ui", ctx->index); | |
| 3040 | |
| 3041 state = sw_value_length; | |
| 3042 break; | |
| 3043 | |
| 3044 case sw_name_length: | |
| 3045 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
| 3046 ctx->field_length = ch & ~0x80; | |
| 3047 | |
| 3048 if (ctx->field_length == 0x7f) { | |
| 3049 state = sw_name_length_2; | |
| 3050 break; | |
| 3051 } | |
| 3052 | |
| 3053 if (ctx->field_length == 0) { | |
| 3054 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3055 "upstream sent zero http2 " | |
| 3056 "header name length"); | |
| 3057 return NGX_ERROR; | |
| 3058 } | |
| 3059 | |
| 3060 state = sw_name; | |
| 3061 break; | |
| 3062 | |
| 3063 case sw_name_length_2: | |
| 3064 ctx->field_length += ch & ~0x80; | |
| 3065 | |
| 3066 if (ch & 0x80) { | |
| 3067 state = sw_name_length_3; | |
| 3068 break; | |
| 3069 } | |
| 3070 | |
| 3071 state = sw_name; | |
| 3072 break; | |
| 3073 | |
| 3074 case sw_name_length_3: | |
| 3075 ctx->field_length += (ch & ~0x80) << 7; | |
| 3076 | |
| 3077 if (ch & 0x80) { | |
| 3078 state = sw_name_length_4; | |
| 3079 break; | |
| 3080 } | |
| 3081 | |
| 3082 state = sw_name; | |
| 3083 break; | |
| 3084 | |
| 3085 case sw_name_length_4: | |
| 3086 ctx->field_length += (ch & ~0x80) << 14; | |
| 3087 | |
| 3088 if (ch & 0x80) { | |
| 3089 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3090 "upstream sent too large http2 " | |
| 3091 "header name length"); | |
| 3092 return NGX_ERROR; | |
| 3093 } | |
| 3094 | |
| 3095 state = sw_name; | |
| 3096 break; | |
| 3097 | |
| 3098 case sw_name: | |
| 3099 ctx->name.len = ctx->field_huffman ? | |
| 3100 ctx->field_length * 8 / 5 : ctx->field_length; | |
| 3101 | |
| 3102 ctx->name.data = ngx_pnalloc(r->pool, ctx->name.len + 1); | |
| 3103 if (ctx->name.data == NULL) { | |
| 3104 return NGX_ERROR; | |
| 3105 } | |
| 3106 | |
| 3107 ctx->field_end = ctx->name.data; | |
| 3108 ctx->field_rest = ctx->field_length; | |
| 3109 ctx->field_state = 0; | |
| 3110 | |
| 3111 state = sw_name_bytes; | |
| 3112 | |
| 3113 /* fall through */ | |
| 3114 | |
| 3115 case sw_name_bytes: | |
| 3116 | |
| 3117 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3118 "grpc name: len:%uz h:%d last:%uz, rest:%uz", | |
| 3119 ctx->field_length, | |
| 3120 ctx->field_huffman, | |
| 3121 last - p, | |
| 3122 ctx->rest - (p - b->pos)); | |
| 3123 | |
| 3124 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
| 3125 ctx->field_rest -= size; | |
| 3126 | |
| 3127 if (ctx->field_huffman) { | |
| 3128 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
| 3129 &ctx->field_end, | |
| 3130 ctx->field_rest == 0, | |
| 3131 r->connection->log) | |
| 3132 != NGX_OK) | |
| 3133 { | |
| 3134 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3135 "upstream sent invalid encoded header"); | |
| 3136 return NGX_ERROR; | |
| 3137 } | |
| 3138 | |
| 3139 ctx->name.len = ctx->field_end - ctx->name.data; | |
| 3140 ctx->name.data[ctx->name.len] = '\0'; | |
| 3141 | |
| 3142 } else { | |
|
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3143 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
| 7233 | 3144 ctx->name.data[ctx->name.len] = '\0'; |
| 3145 } | |
| 3146 | |
| 3147 p += size - 1; | |
| 3148 | |
| 3149 if (ctx->field_rest == 0) { | |
| 3150 state = sw_value_length; | |
| 3151 } | |
| 3152 | |
| 3153 break; | |
| 3154 | |
| 3155 case sw_value_length: | |
| 3156 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
| 3157 ctx->field_length = ch & ~0x80; | |
| 3158 | |
| 3159 if (ctx->field_length == 0x7f) { | |
| 3160 state = sw_value_length_2; | |
| 3161 break; | |
| 3162 } | |
| 3163 | |
| 3164 if (ctx->field_length == 0) { | |
| 3165 ngx_str_set(&ctx->value, ""); | |
| 3166 goto done; | |
| 3167 } | |
| 3168 | |
| 3169 state = sw_value; | |
| 3170 break; | |
| 3171 | |
| 3172 case sw_value_length_2: | |
| 3173 ctx->field_length += ch & ~0x80; | |
| 3174 | |
| 3175 if (ch & 0x80) { | |
| 3176 state = sw_value_length_3; | |
| 3177 break; | |
| 3178 } | |
| 3179 | |
| 3180 state = sw_value; | |
| 3181 break; | |
| 3182 | |
| 3183 case sw_value_length_3: | |
| 3184 ctx->field_length += (ch & ~0x80) << 7; | |
| 3185 | |
| 3186 if (ch & 0x80) { | |
| 3187 state = sw_value_length_4; | |
| 3188 break; | |
| 3189 } | |
| 3190 | |
| 3191 state = sw_value; | |
| 3192 break; | |
| 3193 | |
| 3194 case sw_value_length_4: | |
| 3195 ctx->field_length += (ch & ~0x80) << 14; | |
| 3196 | |
| 3197 if (ch & 0x80) { | |
| 3198 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3199 "upstream sent too large http2 " | |
| 3200 "header value length"); | |
| 3201 return NGX_ERROR; | |
| 3202 } | |
| 3203 | |
| 3204 state = sw_value; | |
| 3205 break; | |
| 3206 | |
| 3207 case sw_value: | |
| 3208 ctx->value.len = ctx->field_huffman ? | |
| 3209 ctx->field_length * 8 / 5 : ctx->field_length; | |
| 3210 | |
| 3211 ctx->value.data = ngx_pnalloc(r->pool, ctx->value.len + 1); | |
| 3212 if (ctx->value.data == NULL) { | |
| 3213 return NGX_ERROR; | |
| 3214 } | |
| 3215 | |
| 3216 ctx->field_end = ctx->value.data; | |
| 3217 ctx->field_rest = ctx->field_length; | |
| 3218 ctx->field_state = 0; | |
| 3219 | |
| 3220 state = sw_value_bytes; | |
| 3221 | |
| 3222 /* fall through */ | |
| 3223 | |
| 3224 case sw_value_bytes: | |
| 3225 | |
| 3226 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3227 "grpc value: len:%uz h:%d last:%uz, rest:%uz", | |
| 3228 ctx->field_length, | |
| 3229 ctx->field_huffman, | |
| 3230 last - p, | |
| 3231 ctx->rest - (p - b->pos)); | |
| 3232 | |
| 3233 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
| 3234 ctx->field_rest -= size; | |
| 3235 | |
| 3236 if (ctx->field_huffman) { | |
| 3237 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
| 3238 &ctx->field_end, | |
| 3239 ctx->field_rest == 0, | |
| 3240 r->connection->log) | |
| 3241 != NGX_OK) | |
| 3242 { | |
| 3243 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3244 "upstream sent invalid encoded header"); | |
| 3245 return NGX_ERROR; | |
| 3246 } | |
| 3247 | |
| 3248 ctx->value.len = ctx->field_end - ctx->value.data; | |
| 3249 ctx->value.data[ctx->value.len] = '\0'; | |
| 3250 | |
| 3251 } else { | |
|
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3252 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
| 7233 | 3253 ctx->value.data[ctx->value.len] = '\0'; |
| 3254 } | |
| 3255 | |
| 3256 p += size - 1; | |
| 3257 | |
| 3258 if (ctx->field_rest == 0) { | |
| 3259 goto done; | |
| 3260 } | |
| 3261 | |
| 3262 break; | |
| 3263 } | |
| 3264 | |
| 3265 continue; | |
| 3266 | |
| 3267 done: | |
| 3268 | |
| 3269 p++; | |
| 3270 ctx->rest -= p - b->pos; | |
| 3271 ctx->fragment_state = sw_start; | |
| 3272 b->pos = p; | |
| 3273 | |
| 3274 if (ctx->index) { | |
| 3275 ctx->name = *ngx_http_v2_get_static_name(ctx->index); | |
| 3276 } | |
| 3277 | |
| 3278 if (ctx->index && !ctx->literal) { | |
| 3279 ctx->value = *ngx_http_v2_get_static_value(ctx->index); | |
| 3280 } | |
| 3281 | |
| 3282 if (!ctx->index) { | |
| 3283 if (ngx_http_grpc_validate_header_name(r, &ctx->name) != NGX_OK) { | |
| 3284 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3285 "upstream sent invalid header: \"%V: %V\"", | |
| 3286 &ctx->name, &ctx->value); | |
| 3287 return NGX_ERROR; | |
| 3288 } | |
| 3289 } | |
| 3290 | |
| 3291 if (!ctx->index || ctx->literal) { | |
| 3292 if (ngx_http_grpc_validate_header_value(r, &ctx->value) != NGX_OK) { | |
| 3293 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3294 "upstream sent invalid header: \"%V: %V\"", | |
| 3295 &ctx->name, &ctx->value); | |
| 3296 return NGX_ERROR; | |
| 3297 } | |
| 3298 } | |
| 3299 | |
| 3300 return NGX_OK; | |
| 3301 } | |
| 3302 | |
| 3303 ctx->rest -= p - b->pos; | |
| 3304 ctx->fragment_state = state; | |
| 3305 b->pos = p; | |
| 3306 | |
| 3307 if (ctx->rest > ctx->padding) { | |
| 3308 return NGX_AGAIN; | |
| 3309 } | |
| 3310 | |
| 3311 return NGX_DONE; | |
| 3312 } | |
| 3313 | |
| 3314 | |
| 3315 static ngx_int_t | |
| 3316 ngx_http_grpc_validate_header_name(ngx_http_request_t *r, ngx_str_t *s) | |
| 3317 { | |
| 3318 u_char ch; | |
| 3319 ngx_uint_t i; | |
| 3320 | |
| 3321 for (i = 0; i < s->len; i++) { | |
| 3322 ch = s->data[i]; | |
| 3323 | |
| 3324 if (ch == ':' && i > 0) { | |
| 3325 return NGX_ERROR; | |
| 3326 } | |
| 3327 | |
| 3328 if (ch >= 'A' && ch <= 'Z') { | |
| 3329 return NGX_ERROR; | |
| 3330 } | |
| 3331 | |
| 3332 if (ch == '\0' || ch == CR || ch == LF) { | |
| 3333 return NGX_ERROR; | |
| 3334 } | |
| 3335 } | |
| 3336 | |
| 3337 return NGX_OK; | |
| 3338 } | |
| 3339 | |
| 3340 | |
| 3341 static ngx_int_t | |
| 3342 ngx_http_grpc_validate_header_value(ngx_http_request_t *r, ngx_str_t *s) | |
| 3343 { | |
| 3344 u_char ch; | |
| 3345 ngx_uint_t i; | |
| 3346 | |
| 3347 for (i = 0; i < s->len; i++) { | |
| 3348 ch = s->data[i]; | |
| 3349 | |
| 3350 if (ch == '\0' || ch == CR || ch == LF) { | |
| 3351 return NGX_ERROR; | |
| 3352 } | |
| 3353 } | |
| 3354 | |
| 3355 return NGX_OK; | |
| 3356 } | |
| 3357 | |
| 3358 | |
| 3359 static ngx_int_t | |
| 3360 ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3361 ngx_buf_t *b) | |
| 3362 { | |
| 3363 u_char ch, *p, *last; | |
| 3364 enum { | |
| 3365 sw_start = 0, | |
| 3366 sw_error_2, | |
| 3367 sw_error_3, | |
| 3368 sw_error_4 | |
| 3369 } state; | |
| 3370 | |
| 3371 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3372 last = b->last; | |
| 3373 | |
| 3374 } else { | |
| 3375 last = b->pos + ctx->rest; | |
| 3376 } | |
| 3377 | |
| 3378 state = ctx->frame_state; | |
| 3379 | |
| 3380 if (state == sw_start) { | |
| 3381 if (ctx->rest != 4) { | |
| 3382 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3383 "upstream sent rst stream frame " | |
| 3384 "with invalid length: %uz", | |
| 3385 ctx->rest); | |
| 3386 return NGX_ERROR; | |
| 3387 } | |
| 3388 } | |
| 3389 | |
| 3390 for (p = b->pos; p < last; p++) { | |
| 3391 ch = *p; | |
| 3392 | |
| 3393 #if 0 | |
| 3394 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3395 "grpc rst byte: %02Xd s:%d", ch, state); | |
| 3396 #endif | |
| 3397 | |
| 3398 switch (state) { | |
| 3399 | |
| 3400 case sw_start: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3401 ctx->error = (ngx_uint_t) ch << 24; |
| 7233 | 3402 state = sw_error_2; |
| 3403 break; | |
| 3404 | |
| 3405 case sw_error_2: | |
| 3406 ctx->error |= ch << 16; | |
| 3407 state = sw_error_3; | |
| 3408 break; | |
| 3409 | |
| 3410 case sw_error_3: | |
| 3411 ctx->error |= ch << 8; | |
| 3412 state = sw_error_4; | |
| 3413 break; | |
| 3414 | |
| 3415 case sw_error_4: | |
| 3416 ctx->error |= ch; | |
| 3417 state = sw_start; | |
| 3418 | |
| 3419 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3420 "grpc error: %ui", ctx->error); | |
| 3421 | |
| 3422 break; | |
| 3423 } | |
| 3424 } | |
| 3425 | |
| 3426 ctx->rest -= p - b->pos; | |
| 3427 ctx->frame_state = state; | |
| 3428 b->pos = p; | |
| 3429 | |
| 3430 if (ctx->rest > 0) { | |
| 3431 return NGX_AGAIN; | |
| 3432 } | |
| 3433 | |
| 3434 return NGX_OK; | |
| 3435 } | |
| 3436 | |
| 3437 | |
| 3438 static ngx_int_t | |
| 3439 ngx_http_grpc_parse_goaway(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3440 ngx_buf_t *b) | |
| 3441 { | |
| 3442 u_char ch, *p, *last; | |
| 3443 enum { | |
| 3444 sw_start = 0, | |
| 3445 sw_last_stream_id_2, | |
| 3446 sw_last_stream_id_3, | |
| 3447 sw_last_stream_id_4, | |
| 3448 sw_error, | |
| 3449 sw_error_2, | |
| 3450 sw_error_3, | |
| 3451 sw_error_4, | |
| 3452 sw_debug | |
| 3453 } state; | |
| 3454 | |
| 3455 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3456 last = b->last; | |
| 3457 | |
| 3458 } else { | |
| 3459 last = b->pos + ctx->rest; | |
| 3460 } | |
| 3461 | |
| 3462 state = ctx->frame_state; | |
| 3463 | |
| 3464 if (state == sw_start) { | |
| 3465 | |
| 3466 if (ctx->stream_id) { | |
| 3467 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3468 "upstream sent goaway frame " | |
| 3469 "with non-zero stream id: %ui", | |
| 3470 ctx->stream_id); | |
| 3471 return NGX_ERROR; | |
| 3472 } | |
| 3473 | |
| 3474 if (ctx->rest < 8) { | |
| 3475 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3476 "upstream sent goaway frame " | |
| 3477 "with invalid length: %uz", | |
| 3478 ctx->rest); | |
| 3479 return NGX_ERROR; | |
| 3480 } | |
| 3481 } | |
| 3482 | |
| 3483 for (p = b->pos; p < last; p++) { | |
| 3484 ch = *p; | |
| 3485 | |
| 3486 #if 0 | |
| 3487 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3488 "grpc goaway byte: %02Xd s:%d", ch, state); | |
| 3489 #endif | |
| 3490 | |
| 3491 switch (state) { | |
| 3492 | |
| 3493 case sw_start: | |
| 3494 ctx->stream_id = (ch & 0x7f) << 24; | |
| 3495 state = sw_last_stream_id_2; | |
| 3496 break; | |
| 3497 | |
| 3498 case sw_last_stream_id_2: | |
| 3499 ctx->stream_id |= ch << 16; | |
| 3500 state = sw_last_stream_id_3; | |
| 3501 break; | |
| 3502 | |
| 3503 case sw_last_stream_id_3: | |
| 3504 ctx->stream_id |= ch << 8; | |
| 3505 state = sw_last_stream_id_4; | |
| 3506 break; | |
| 3507 | |
| 3508 case sw_last_stream_id_4: | |
| 3509 ctx->stream_id |= ch; | |
| 3510 state = sw_error; | |
| 3511 break; | |
| 3512 | |
| 3513 case sw_error: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3514 ctx->error = (ngx_uint_t) ch << 24; |
| 7233 | 3515 state = sw_error_2; |
| 3516 break; | |
| 3517 | |
| 3518 case sw_error_2: | |
| 3519 ctx->error |= ch << 16; | |
| 3520 state = sw_error_3; | |
| 3521 break; | |
| 3522 | |
| 3523 case sw_error_3: | |
| 3524 ctx->error |= ch << 8; | |
| 3525 state = sw_error_4; | |
| 3526 break; | |
| 3527 | |
| 3528 case sw_error_4: | |
| 3529 ctx->error |= ch; | |
| 3530 state = sw_debug; | |
| 3531 break; | |
| 3532 | |
| 3533 case sw_debug: | |
| 3534 break; | |
| 3535 } | |
| 3536 } | |
| 3537 | |
| 3538 ctx->rest -= p - b->pos; | |
| 3539 ctx->frame_state = state; | |
| 3540 b->pos = p; | |
| 3541 | |
| 3542 if (ctx->rest > 0) { | |
| 3543 return NGX_AGAIN; | |
| 3544 } | |
| 3545 | |
| 3546 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3547 "grpc goaway: %ui, stream %ui", | |
| 3548 ctx->error, ctx->stream_id); | |
| 3549 | |
| 3550 ctx->state = ngx_http_grpc_st_start; | |
| 3551 | |
| 3552 return NGX_OK; | |
| 3553 } | |
| 3554 | |
| 3555 | |
| 3556 static ngx_int_t | |
| 3557 ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
| 3558 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
| 3559 { | |
| 3560 u_char ch, *p, *last; | |
| 3561 enum { | |
| 3562 sw_start = 0, | |
| 3563 sw_size_2, | |
| 3564 sw_size_3, | |
| 3565 sw_size_4 | |
| 3566 } state; | |
| 3567 | |
| 3568 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3569 last = b->last; | |
| 3570 | |
| 3571 } else { | |
| 3572 last = b->pos + ctx->rest; | |
| 3573 } | |
| 3574 | |
| 3575 state = ctx->frame_state; | |
| 3576 | |
| 3577 if (state == sw_start) { | |
| 3578 if (ctx->rest != 4) { | |
| 3579 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3580 "upstream sent window update frame " | |
| 3581 "with invalid length: %uz", | |
| 3582 ctx->rest); | |
| 3583 return NGX_ERROR; | |
| 3584 } | |
| 3585 } | |
| 3586 | |
| 3587 for (p = b->pos; p < last; p++) { | |
| 3588 ch = *p; | |
| 3589 | |
| 3590 #if 0 | |
| 3591 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3592 "grpc window update byte: %02Xd s:%d", ch, state); | |
| 3593 #endif | |
| 3594 | |
| 3595 switch (state) { | |
| 3596 | |
| 3597 case sw_start: | |
| 3598 ctx->window_update = (ch & 0x7f) << 24; | |
| 3599 state = sw_size_2; | |
| 3600 break; | |
| 3601 | |
| 3602 case sw_size_2: | |
| 3603 ctx->window_update |= ch << 16; | |
| 3604 state = sw_size_3; | |
| 3605 break; | |
| 3606 | |
| 3607 case sw_size_3: | |
| 3608 ctx->window_update |= ch << 8; | |
| 3609 state = sw_size_4; | |
| 3610 break; | |
| 3611 | |
| 3612 case sw_size_4: | |
| 3613 ctx->window_update |= ch; | |
| 3614 state = sw_start; | |
| 3615 break; | |
| 3616 } | |
| 3617 } | |
| 3618 | |
| 3619 ctx->rest -= p - b->pos; | |
| 3620 ctx->frame_state = state; | |
| 3621 b->pos = p; | |
| 3622 | |
| 3623 if (ctx->rest > 0) { | |
| 3624 return NGX_AGAIN; | |
| 3625 } | |
| 3626 | |
| 3627 ctx->state = ngx_http_grpc_st_start; | |
| 3628 | |
| 3629 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3630 "grpc window update: %ui", ctx->window_update); | |
| 3631 | |
| 3632 if (ctx->stream_id) { | |
| 3633 | |
| 3634 if (ctx->window_update > (size_t) NGX_HTTP_V2_MAX_WINDOW | |
| 3635 - ctx->send_window) | |
| 3636 { | |
| 3637 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3638 "upstream sent too large window update"); | |
| 3639 return NGX_ERROR; | |
| 3640 } | |
| 3641 | |
| 3642 ctx->send_window += ctx->window_update; | |
| 3643 | |
| 3644 } else { | |
| 3645 | |
| 3646 if (ctx->window_update > NGX_HTTP_V2_MAX_WINDOW | |
| 3647 - ctx->connection->send_window) | |
| 3648 { | |
| 3649 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3650 "upstream sent too large window update"); | |
| 3651 return NGX_ERROR; | |
| 3652 } | |
| 3653 | |
| 3654 ctx->connection->send_window += ctx->window_update; | |
| 3655 } | |
| 3656 | |
| 3657 return NGX_OK; | |
| 3658 } | |
| 3659 | |
| 3660 | |
| 3661 static ngx_int_t | |
| 3662 ngx_http_grpc_parse_settings(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3663 ngx_buf_t *b) | |
| 3664 { | |
| 3665 u_char ch, *p, *last; | |
| 3666 ssize_t window_update; | |
| 3667 enum { | |
| 3668 sw_start = 0, | |
| 3669 sw_id, | |
| 3670 sw_id_2, | |
| 3671 sw_value, | |
| 3672 sw_value_2, | |
| 3673 sw_value_3, | |
| 3674 sw_value_4 | |
| 3675 } state; | |
| 3676 | |
| 3677 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3678 last = b->last; | |
| 3679 | |
| 3680 } else { | |
| 3681 last = b->pos + ctx->rest; | |
| 3682 } | |
| 3683 | |
| 3684 state = ctx->frame_state; | |
| 3685 | |
| 3686 if (state == sw_start) { | |
| 3687 | |
| 3688 if (ctx->stream_id) { | |
| 3689 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3690 "upstream sent settings frame " | |
| 3691 "with non-zero stream id: %ui", | |
| 3692 ctx->stream_id); | |
| 3693 return NGX_ERROR; | |
| 3694 } | |
| 3695 | |
| 3696 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
| 3697 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3698 "grpc settings ack"); | |
| 3699 | |
| 3700 if (ctx->rest != 0) { | |
| 3701 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3702 "upstream sent settings frame " | |
| 3703 "with ack flag and non-zero length: %uz", | |
| 3704 ctx->rest); | |
| 3705 return NGX_ERROR; | |
| 3706 } | |
| 3707 | |
| 3708 ctx->state = ngx_http_grpc_st_start; | |
| 3709 | |
| 3710 return NGX_OK; | |
| 3711 } | |
| 3712 | |
| 3713 if (ctx->rest % 6 != 0) { | |
| 3714 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3715 "upstream sent settings frame " | |
| 3716 "with invalid length: %uz", | |
| 3717 ctx->rest); | |
| 3718 return NGX_ERROR; | |
| 3719 } | |
|
7379
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3720 |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3721 if (ctx->free == NULL && ctx->settings++ > 1000) { |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3722 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3723 "upstream sent too many settings frames"); |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3724 return NGX_ERROR; |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3725 } |
| 7233 | 3726 } |
| 3727 | |
| 3728 for (p = b->pos; p < last; p++) { | |
| 3729 ch = *p; | |
| 3730 | |
| 3731 #if 0 | |
| 3732 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3733 "grpc settings byte: %02Xd s:%d", ch, state); | |
| 3734 #endif | |
| 3735 | |
| 3736 switch (state) { | |
| 3737 | |
| 3738 case sw_start: | |
| 3739 case sw_id: | |
| 3740 ctx->setting_id = ch << 8; | |
| 3741 state = sw_id_2; | |
| 3742 break; | |
| 3743 | |
| 3744 case sw_id_2: | |
| 3745 ctx->setting_id |= ch; | |
| 3746 state = sw_value; | |
| 3747 break; | |
| 3748 | |
| 3749 case sw_value: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3750 ctx->setting_value = (ngx_uint_t) ch << 24; |
| 7233 | 3751 state = sw_value_2; |
| 3752 break; | |
| 3753 | |
| 3754 case sw_value_2: | |
| 3755 ctx->setting_value |= ch << 16; | |
| 3756 state = sw_value_3; | |
| 3757 break; | |
| 3758 | |
| 3759 case sw_value_3: | |
| 3760 ctx->setting_value |= ch << 8; | |
| 3761 state = sw_value_4; | |
| 3762 break; | |
| 3763 | |
| 3764 case sw_value_4: | |
| 3765 ctx->setting_value |= ch; | |
| 3766 state = sw_id; | |
| 3767 | |
| 3768 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3769 "grpc setting: %ui %ui", | |
| 3770 ctx->setting_id, ctx->setting_value); | |
| 3771 | |
| 3772 /* | |
| 3773 * The following settings are defined by the protocol: | |
| 3774 * | |
| 3775 * SETTINGS_HEADER_TABLE_SIZE, SETTINGS_ENABLE_PUSH, | |
| 3776 * SETTINGS_MAX_CONCURRENT_STREAMS, SETTINGS_INITIAL_WINDOW_SIZE, | |
| 3777 * SETTINGS_MAX_FRAME_SIZE, SETTINGS_MAX_HEADER_LIST_SIZE | |
| 3778 * | |
| 3779 * Only SETTINGS_INITIAL_WINDOW_SIZE seems to be needed in | |
| 3780 * a simple client. | |
| 3781 */ | |
| 3782 | |
| 3783 if (ctx->setting_id == 0x04) { | |
| 3784 /* SETTINGS_INITIAL_WINDOW_SIZE */ | |
| 3785 | |
| 3786 if (ctx->setting_value > NGX_HTTP_V2_MAX_WINDOW) { | |
| 3787 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3788 "upstream sent settings frame " | |
| 3789 "with too large initial window size: %ui", | |
| 3790 ctx->setting_value); | |
| 3791 return NGX_ERROR; | |
| 3792 } | |
| 3793 | |
| 3794 window_update = ctx->setting_value | |
| 3795 - ctx->connection->init_window; | |
| 3796 ctx->connection->init_window = ctx->setting_value; | |
| 3797 | |
| 3798 if (ctx->send_window > 0 | |
| 3799 && window_update > (ssize_t) NGX_HTTP_V2_MAX_WINDOW | |
| 3800 - ctx->send_window) | |
| 3801 { | |
| 3802 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3803 "upstream sent settings frame " | |
| 3804 "with too large initial window size: %ui", | |
| 3805 ctx->setting_value); | |
| 3806 return NGX_ERROR; | |
| 3807 } | |
| 3808 | |
| 3809 ctx->send_window += window_update; | |
| 3810 } | |
| 3811 | |
| 3812 break; | |
| 3813 } | |
| 3814 } | |
| 3815 | |
| 3816 ctx->rest -= p - b->pos; | |
| 3817 ctx->frame_state = state; | |
| 3818 b->pos = p; | |
| 3819 | |
| 3820 if (ctx->rest > 0) { | |
| 3821 return NGX_AGAIN; | |
| 3822 } | |
| 3823 | |
| 3824 ctx->state = ngx_http_grpc_st_start; | |
| 3825 | |
| 3826 return ngx_http_grpc_send_settings_ack(r, ctx); | |
| 3827 } | |
| 3828 | |
| 3829 | |
| 3830 static ngx_int_t | |
| 3831 ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
| 3832 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
| 3833 { | |
| 3834 u_char ch, *p, *last; | |
| 3835 enum { | |
| 3836 sw_start = 0, | |
| 3837 sw_data_2, | |
| 3838 sw_data_3, | |
| 3839 sw_data_4, | |
| 3840 sw_data_5, | |
| 3841 sw_data_6, | |
| 3842 sw_data_7, | |
| 3843 sw_data_8 | |
| 3844 } state; | |
| 3845 | |
| 3846 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3847 last = b->last; | |
| 3848 | |
| 3849 } else { | |
| 3850 last = b->pos + ctx->rest; | |
| 3851 } | |
| 3852 | |
| 3853 state = ctx->frame_state; | |
| 3854 | |
| 3855 if (state == sw_start) { | |
| 3856 | |
| 3857 if (ctx->stream_id) { | |
| 3858 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3859 "upstream sent ping frame " | |
| 3860 "with non-zero stream id: %ui", | |
| 3861 ctx->stream_id); | |
| 3862 return NGX_ERROR; | |
| 3863 } | |
| 3864 | |
| 3865 if (ctx->rest != 8) { | |
| 3866 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3867 "upstream sent ping frame " | |
| 3868 "with invalid length: %uz", | |
| 3869 ctx->rest); | |
| 3870 return NGX_ERROR; | |
| 3871 } | |
| 3872 | |
| 3873 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
| 3874 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3875 "upstream sent ping frame with ack flag"); | |
| 3876 return NGX_ERROR; | |
| 3877 } | |
|
7379
57463f4e2fcd
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parents:
7371
diff
changeset
|
3878 |
|
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3879 if (ctx->free == NULL && ctx->pings++ > 1000) { |
|
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
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parents:
7371
diff
changeset
|
3880 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
57463f4e2fcd
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Maxim Dounin <mdounin@mdounin.ru>
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7371
diff
changeset
|
3881 "upstream sent too many ping frames"); |
|
57463f4e2fcd
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3882 return NGX_ERROR; |
|
57463f4e2fcd
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3883 } |
| 7233 | 3884 } |
| 3885 | |
| 3886 for (p = b->pos; p < last; p++) { | |
| 3887 ch = *p; | |
| 3888 | |
| 3889 #if 0 | |
| 3890 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3891 "grpc ping byte: %02Xd s:%d", ch, state); | |
| 3892 #endif | |
| 3893 | |
| 3894 if (state < sw_data_8) { | |
| 3895 ctx->ping_data[state] = ch; | |
| 3896 state++; | |
| 3897 | |
| 3898 } else { | |
| 3899 ctx->ping_data[7] = ch; | |
| 3900 state = sw_start; | |
| 3901 | |
| 3902 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3903 "grpc ping"); | |
| 3904 } | |
| 3905 } | |
| 3906 | |
| 3907 ctx->rest -= p - b->pos; | |
| 3908 ctx->frame_state = state; | |
| 3909 b->pos = p; | |
| 3910 | |
| 3911 if (ctx->rest > 0) { | |
| 3912 return NGX_AGAIN; | |
| 3913 } | |
| 3914 | |
| 3915 ctx->state = ngx_http_grpc_st_start; | |
| 3916 | |
| 3917 return ngx_http_grpc_send_ping_ack(r, ctx); | |
| 3918 } | |
| 3919 | |
| 3920 | |
| 3921 static ngx_int_t | |
| 3922 ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 3923 { | |
| 3924 ngx_chain_t *cl, **ll; | |
| 3925 ngx_http_grpc_frame_t *f; | |
| 3926 | |
| 3927 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3928 "grpc send settings ack"); | |
| 3929 | |
| 3930 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 3931 ll = &cl->next; | |
| 3932 } | |
| 3933 | |
| 3934 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 3935 if (cl == NULL) { | |
| 3936 return NGX_ERROR; | |
| 3937 } | |
| 3938 | |
| 3939 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 3940 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 3941 | |
| 3942 f->length_0 = 0; | |
| 3943 f->length_1 = 0; | |
| 3944 f->length_2 = 0; | |
| 3945 f->type = NGX_HTTP_V2_SETTINGS_FRAME; | |
| 3946 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
| 3947 f->stream_id_0 = 0; | |
| 3948 f->stream_id_1 = 0; | |
| 3949 f->stream_id_2 = 0; | |
| 3950 f->stream_id_3 = 0; | |
| 3951 | |
| 3952 *ll = cl; | |
| 3953 | |
| 3954 return NGX_OK; | |
| 3955 } | |
| 3956 | |
| 3957 | |
| 3958 static ngx_int_t | |
| 3959 ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 3960 { | |
| 3961 ngx_chain_t *cl, **ll; | |
| 3962 ngx_http_grpc_frame_t *f; | |
| 3963 | |
| 3964 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3965 "grpc send ping ack"); | |
| 3966 | |
| 3967 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 3968 ll = &cl->next; | |
| 3969 } | |
| 3970 | |
| 3971 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 3972 if (cl == NULL) { | |
| 3973 return NGX_ERROR; | |
| 3974 } | |
| 3975 | |
| 3976 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 3977 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 3978 | |
| 3979 f->length_0 = 0; | |
| 3980 f->length_1 = 0; | |
| 3981 f->length_2 = 8; | |
| 3982 f->type = NGX_HTTP_V2_PING_FRAME; | |
| 3983 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
| 3984 f->stream_id_0 = 0; | |
| 3985 f->stream_id_1 = 0; | |
| 3986 f->stream_id_2 = 0; | |
| 3987 f->stream_id_3 = 0; | |
| 3988 | |
| 3989 cl->buf->last = ngx_copy(cl->buf->last, ctx->ping_data, 8); | |
| 3990 | |
| 3991 *ll = cl; | |
| 3992 | |
| 3993 return NGX_OK; | |
| 3994 } | |
| 3995 | |
| 3996 | |
| 3997 static ngx_int_t | |
| 3998 ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
| 3999 ngx_http_grpc_ctx_t *ctx) | |
| 4000 { | |
| 4001 size_t n; | |
| 4002 ngx_chain_t *cl, **ll; | |
| 4003 ngx_http_grpc_frame_t *f; | |
| 4004 | |
| 4005 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4006 "grpc send window update: %uz %uz", | |
| 4007 ctx->connection->recv_window, ctx->recv_window); | |
| 4008 | |
| 4009 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 4010 ll = &cl->next; | |
| 4011 } | |
| 4012 | |
| 4013 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 4014 if (cl == NULL) { | |
| 4015 return NGX_ERROR; | |
| 4016 } | |
| 4017 | |
| 4018 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 4019 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 4020 | |
| 4021 f->length_0 = 0; | |
| 4022 f->length_1 = 0; | |
| 4023 f->length_2 = 4; | |
| 4024 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
| 4025 f->flags = 0; | |
| 4026 f->stream_id_0 = 0; | |
| 4027 f->stream_id_1 = 0; | |
| 4028 f->stream_id_2 = 0; | |
| 4029 f->stream_id_3 = 0; | |
| 4030 | |
| 4031 n = NGX_HTTP_V2_MAX_WINDOW - ctx->connection->recv_window; | |
| 4032 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4033 | |
| 4034 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
| 4035 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
| 4036 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
| 4037 *cl->buf->last++ = (u_char) (n & 0xff); | |
| 4038 | |
| 4039 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 4040 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 4041 | |
| 4042 f->length_0 = 0; | |
| 4043 f->length_1 = 0; | |
| 4044 f->length_2 = 4; | |
| 4045 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
| 4046 f->flags = 0; | |
| 4047 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 4048 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 4049 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 4050 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 4051 | |
| 4052 n = NGX_HTTP_V2_MAX_WINDOW - ctx->recv_window; | |
| 4053 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4054 | |
| 4055 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
| 4056 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
| 4057 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
| 4058 *cl->buf->last++ = (u_char) (n & 0xff); | |
| 4059 | |
| 4060 *ll = cl; | |
| 4061 | |
| 4062 return NGX_OK; | |
| 4063 } | |
| 4064 | |
| 4065 | |
| 4066 static ngx_chain_t * | |
| 4067 ngx_http_grpc_get_buf(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 4068 { | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4069 u_char *start; |
| 7233 | 4070 ngx_buf_t *b; |
| 4071 ngx_chain_t *cl; | |
| 4072 | |
| 4073 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
| 4074 if (cl == NULL) { | |
| 4075 return NULL; | |
| 4076 } | |
| 4077 | |
| 4078 b = cl->buf; | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4079 start = b->start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4080 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4081 if (start == NULL) { |
| 7233 | 4082 |
| 4083 /* | |
| 4084 * each buffer is large enough to hold two window update | |
| 4085 * frames in a row | |
| 4086 */ | |
| 4087 | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4088 start = ngx_palloc(r->pool, 2 * sizeof(ngx_http_grpc_frame_t) + 8); |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
7271
diff
changeset
|
4089 if (start == NULL) { |
| 7233 | 4090 return NULL; |
| 4091 } | |
| 4092 | |
| 4093 } | |
| 4094 | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
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diff
changeset
|
4095 ngx_memzero(b, sizeof(ngx_buf_t)); |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4096 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4097 b->start = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4098 b->pos = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4099 b->last = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4100 b->end = start + 2 * sizeof(ngx_http_grpc_frame_t) + 8; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
7271
diff
changeset
|
4101 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
7271
diff
changeset
|
4102 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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7271
diff
changeset
|
4103 b->temporary = 1; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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7271
diff
changeset
|
4104 b->flush = 1; |
|
6cfd45d4c754
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7271
diff
changeset
|
4105 |
| 7233 | 4106 return cl; |
| 4107 } | |
| 4108 | |
| 4109 | |
| 4110 static ngx_http_grpc_ctx_t * | |
| 4111 ngx_http_grpc_get_ctx(ngx_http_request_t *r) | |
| 4112 { | |
| 4113 ngx_http_grpc_ctx_t *ctx; | |
| 4114 ngx_http_upstream_t *u; | |
| 4115 | |
| 4116 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
| 4117 | |
| 4118 if (ctx->connection == NULL) { | |
| 4119 u = r->upstream; | |
| 4120 | |
| 4121 if (ngx_http_grpc_get_connection_data(r, ctx, &u->peer) != NGX_OK) { | |
| 4122 return NULL; | |
| 4123 } | |
| 4124 } | |
| 4125 | |
| 4126 return ctx; | |
| 4127 } | |
| 4128 | |
| 4129 | |
| 4130 static ngx_int_t | |
| 4131 ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
| 4132 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc) | |
| 4133 { | |
| 4134 ngx_connection_t *c; | |
| 4135 ngx_pool_cleanup_t *cln; | |
| 4136 | |
| 4137 c = pc->connection; | |
| 4138 | |
| 4139 if (pc->cached) { | |
| 4140 | |
| 4141 /* | |
| 4142 * for cached connections, connection data can be found | |
| 4143 * in the cleanup handler | |
| 4144 */ | |
| 4145 | |
| 4146 for (cln = c->pool->cleanup; cln; cln = cln->next) { | |
| 4147 if (cln->handler == ngx_http_grpc_cleanup) { | |
| 4148 ctx->connection = cln->data; | |
| 4149 break; | |
| 4150 } | |
| 4151 } | |
| 4152 | |
| 4153 if (ctx->connection == NULL) { | |
| 4154 ngx_log_error(NGX_LOG_ERR, c->log, 0, | |
| 4155 "no connection data found for " | |
| 4156 "keepalive http2 connection"); | |
| 4157 return NGX_ERROR; | |
| 4158 } | |
| 4159 | |
| 4160 ctx->send_window = ctx->connection->init_window; | |
| 4161 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4162 | |
| 4163 ctx->connection->last_stream_id += 2; | |
| 4164 ctx->id = ctx->connection->last_stream_id; | |
| 4165 | |
| 4166 return NGX_OK; | |
| 4167 } | |
| 4168 | |
| 4169 cln = ngx_pool_cleanup_add(c->pool, sizeof(ngx_http_grpc_conn_t)); | |
| 4170 if (cln == NULL) { | |
| 4171 return NGX_ERROR; | |
| 4172 } | |
| 4173 | |
| 4174 cln->handler = ngx_http_grpc_cleanup; | |
| 4175 ctx->connection = cln->data; | |
| 4176 | |
| 4177 ctx->connection->init_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4178 ctx->connection->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4179 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4180 | |
| 4181 ctx->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4182 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4183 | |
| 4184 ctx->id = 1; | |
| 4185 ctx->connection->last_stream_id = 1; | |
| 4186 | |
| 4187 return NGX_OK; | |
| 4188 } | |
| 4189 | |
| 4190 | |
| 4191 static void | |
| 4192 ngx_http_grpc_cleanup(void *data) | |
| 4193 { | |
| 4194 #if 0 | |
| 4195 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 4196 "grpc cleanup"); | |
| 4197 #endif | |
| 4198 return; | |
| 4199 } | |
| 4200 | |
| 4201 | |
| 4202 static void | |
| 4203 ngx_http_grpc_abort_request(ngx_http_request_t *r) | |
| 4204 { | |
| 4205 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4206 "abort grpc request"); | |
| 4207 return; | |
| 4208 } | |
| 4209 | |
| 4210 | |
| 4211 static void | |
| 4212 ngx_http_grpc_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
| 4213 { | |
| 4214 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4215 "finalize grpc request"); | |
| 4216 return; | |
| 4217 } | |
| 4218 | |
| 4219 | |
|
7234
c693daca57f7
gRPC: special handling of the TE request header.
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parents:
7233
diff
changeset
|
4220 static ngx_int_t |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4221 ngx_http_grpc_internal_trailers_variable(ngx_http_request_t *r, |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4222 ngx_http_variable_value_t *v, uintptr_t data) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4223 { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4224 ngx_table_elt_t *te; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4225 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4226 te = r->headers_in.te; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4227 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4228 if (te == NULL) { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4229 v->not_found = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4230 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4231 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4232 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4233 if (ngx_strlcasestrn(te->value.data, te->value.data + te->value.len, |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4234 (u_char *) "trailers", 8 - 1) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4235 == NULL) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4236 { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4237 v->not_found = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4238 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4239 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4240 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4241 v->valid = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4242 v->no_cacheable = 0; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4243 v->not_found = 0; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4244 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4245 v->data = (u_char *) "trailers"; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4246 v->len = sizeof("trailers") - 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4247 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4248 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4249 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4250 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4251 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4252 static ngx_int_t |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4253 ngx_http_grpc_add_variables(ngx_conf_t *cf) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4254 { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4255 ngx_http_variable_t *var, *v; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4256 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4257 for (v = ngx_http_grpc_vars; v->name.len; v++) { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4258 var = ngx_http_add_variable(cf, &v->name, v->flags); |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4259 if (var == NULL) { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4260 return NGX_ERROR; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4261 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4262 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4263 var->get_handler = v->get_handler; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4264 var->data = v->data; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4265 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4266 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4267 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4268 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4269 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4270 |
| 7233 | 4271 static void * |
| 4272 ngx_http_grpc_create_loc_conf(ngx_conf_t *cf) | |
| 4273 { | |
| 4274 ngx_http_grpc_loc_conf_t *conf; | |
| 4275 | |
| 4276 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_grpc_loc_conf_t)); | |
| 4277 if (conf == NULL) { | |
| 4278 return NULL; | |
| 4279 } | |
| 4280 | |
| 4281 /* | |
| 4282 * set by ngx_pcalloc(): | |
| 4283 * | |
| 4284 * conf->upstream.ignore_headers = 0; | |
| 4285 * conf->upstream.next_upstream = 0; | |
| 4286 * conf->upstream.hide_headers_hash = { NULL, 0 }; | |
| 4287 * conf->upstream.ssl_name = NULL; | |
| 4288 * | |
| 4289 * conf->headers_source = NULL; | |
| 4290 * conf->headers.lengths = NULL; | |
| 4291 * conf->headers.values = NULL; | |
| 4292 * conf->headers.hash = { NULL, 0 }; | |
| 4293 * conf->host = { 0, NULL }; | |
| 4294 * conf->host_set = 0; | |
| 4295 * conf->ssl = 0; | |
| 4296 * conf->ssl_protocols = 0; | |
| 4297 * conf->ssl_ciphers = { 0, NULL }; | |
| 4298 * conf->ssl_trusted_certificate = { 0, NULL }; | |
| 4299 * conf->ssl_crl = { 0, NULL }; | |
| 4300 * conf->ssl_certificate = { 0, NULL }; | |
| 4301 * conf->ssl_certificate_key = { 0, NULL }; | |
| 4302 */ | |
| 4303 | |
| 4304 conf->upstream.local = NGX_CONF_UNSET_PTR; | |
|
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4305 conf->upstream.socket_keepalive = NGX_CONF_UNSET; |
| 7233 | 4306 conf->upstream.next_upstream_tries = NGX_CONF_UNSET_UINT; |
| 4307 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; | |
| 4308 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
| 4309 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
| 4310 conf->upstream.next_upstream_timeout = NGX_CONF_UNSET_MSEC; | |
| 4311 | |
| 4312 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
| 4313 | |
| 4314 conf->upstream.hide_headers = NGX_CONF_UNSET_PTR; | |
| 4315 conf->upstream.pass_headers = NGX_CONF_UNSET_PTR; | |
| 4316 | |
| 4317 conf->upstream.intercept_errors = NGX_CONF_UNSET; | |
| 4318 | |
| 4319 #if (NGX_HTTP_SSL) | |
| 4320 conf->upstream.ssl_session_reuse = NGX_CONF_UNSET; | |
| 4321 conf->upstream.ssl_server_name = NGX_CONF_UNSET; | |
| 4322 conf->upstream.ssl_verify = NGX_CONF_UNSET; | |
| 4323 conf->ssl_verify_depth = NGX_CONF_UNSET_UINT; | |
| 4324 conf->ssl_passwords = NGX_CONF_UNSET_PTR; | |
| 4325 #endif | |
| 4326 | |
| 4327 /* the hardcoded values */ | |
| 4328 conf->upstream.cyclic_temp_file = 0; | |
| 4329 conf->upstream.buffering = 0; | |
| 4330 conf->upstream.ignore_client_abort = 0; | |
| 4331 conf->upstream.send_lowat = 0; | |
| 4332 conf->upstream.bufs.num = 0; | |
| 4333 conf->upstream.busy_buffers_size = 0; | |
| 4334 conf->upstream.max_temp_file_size = 0; | |
| 4335 conf->upstream.temp_file_write_size = 0; | |
| 4336 conf->upstream.pass_request_headers = 1; | |
| 4337 conf->upstream.pass_request_body = 1; | |
| 4338 conf->upstream.force_ranges = 0; | |
| 4339 conf->upstream.pass_trailers = 1; | |
| 4340 conf->upstream.preserve_output = 1; | |
| 4341 | |
| 4342 ngx_str_set(&conf->upstream.module, "grpc"); | |
| 4343 | |
| 4344 return conf; | |
| 4345 } | |
| 4346 | |
| 4347 | |
| 4348 static char * | |
| 4349 ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 4350 { | |
| 4351 ngx_http_grpc_loc_conf_t *prev = parent; | |
| 4352 ngx_http_grpc_loc_conf_t *conf = child; | |
| 4353 | |
| 4354 ngx_int_t rc; | |
| 4355 ngx_hash_init_t hash; | |
| 4356 ngx_http_core_loc_conf_t *clcf; | |
| 4357 | |
| 4358 ngx_conf_merge_ptr_value(conf->upstream.local, | |
| 4359 prev->upstream.local, NULL); | |
| 4360 | |
|
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4361 ngx_conf_merge_value(conf->upstream.socket_keepalive, |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4362 prev->upstream.socket_keepalive, 0); |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4363 |
| 7233 | 4364 ngx_conf_merge_uint_value(conf->upstream.next_upstream_tries, |
| 4365 prev->upstream.next_upstream_tries, 0); | |
| 4366 | |
| 4367 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, | |
| 4368 prev->upstream.connect_timeout, 60000); | |
| 4369 | |
| 4370 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
| 4371 prev->upstream.send_timeout, 60000); | |
| 4372 | |
| 4373 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
| 4374 prev->upstream.read_timeout, 60000); | |
| 4375 | |
| 4376 ngx_conf_merge_msec_value(conf->upstream.next_upstream_timeout, | |
| 4377 prev->upstream.next_upstream_timeout, 0); | |
| 4378 | |
| 4379 ngx_conf_merge_size_value(conf->upstream.buffer_size, | |
| 4380 prev->upstream.buffer_size, | |
| 4381 (size_t) ngx_pagesize); | |
| 4382 | |
| 4383 ngx_conf_merge_bitmask_value(conf->upstream.ignore_headers, | |
| 4384 prev->upstream.ignore_headers, | |
| 4385 NGX_CONF_BITMASK_SET); | |
| 4386 | |
| 4387 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
| 4388 prev->upstream.next_upstream, | |
| 4389 (NGX_CONF_BITMASK_SET | |
| 4390 |NGX_HTTP_UPSTREAM_FT_ERROR | |
| 4391 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
| 4392 | |
| 4393 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { | |
| 4394 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
| 4395 |NGX_HTTP_UPSTREAM_FT_OFF; | |
| 4396 } | |
| 4397 | |
| 4398 ngx_conf_merge_value(conf->upstream.intercept_errors, | |
| 4399 prev->upstream.intercept_errors, 0); | |
| 4400 | |
| 4401 #if (NGX_HTTP_SSL) | |
| 4402 | |
| 4403 ngx_conf_merge_value(conf->upstream.ssl_session_reuse, | |
| 4404 prev->upstream.ssl_session_reuse, 1); | |
| 4405 | |
| 4406 ngx_conf_merge_bitmask_value(conf->ssl_protocols, prev->ssl_protocols, | |
| 4407 (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1 | |
| 4408 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); | |
| 4409 | |
| 4410 ngx_conf_merge_str_value(conf->ssl_ciphers, prev->ssl_ciphers, | |
| 4411 "DEFAULT"); | |
| 4412 | |
| 4413 if (conf->upstream.ssl_name == NULL) { | |
| 4414 conf->upstream.ssl_name = prev->upstream.ssl_name; | |
| 4415 } | |
| 4416 | |
| 4417 ngx_conf_merge_value(conf->upstream.ssl_server_name, | |
| 4418 prev->upstream.ssl_server_name, 0); | |
| 4419 ngx_conf_merge_value(conf->upstream.ssl_verify, | |
| 4420 prev->upstream.ssl_verify, 0); | |
| 4421 ngx_conf_merge_uint_value(conf->ssl_verify_depth, | |
| 4422 prev->ssl_verify_depth, 1); | |
| 4423 ngx_conf_merge_str_value(conf->ssl_trusted_certificate, | |
| 4424 prev->ssl_trusted_certificate, ""); | |
| 4425 ngx_conf_merge_str_value(conf->ssl_crl, prev->ssl_crl, ""); | |
| 4426 | |
| 4427 ngx_conf_merge_str_value(conf->ssl_certificate, | |
| 4428 prev->ssl_certificate, ""); | |
| 4429 ngx_conf_merge_str_value(conf->ssl_certificate_key, | |
| 4430 prev->ssl_certificate_key, ""); | |
| 4431 ngx_conf_merge_ptr_value(conf->ssl_passwords, prev->ssl_passwords, NULL); | |
| 4432 | |
| 4433 if (conf->ssl && ngx_http_grpc_set_ssl(cf, conf) != NGX_OK) { | |
| 4434 return NGX_CONF_ERROR; | |
| 4435 } | |
| 4436 | |
| 4437 #endif | |
| 4438 | |
| 4439 hash.max_size = 512; | |
| 4440 hash.bucket_size = ngx_align(64, ngx_cacheline_size); | |
| 4441 hash.name = "grpc_headers_hash"; | |
| 4442 | |
| 4443 if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream, | |
| 4444 &prev->upstream, ngx_http_grpc_hide_headers, &hash) | |
| 4445 != NGX_OK) | |
| 4446 { | |
| 4447 return NGX_CONF_ERROR; | |
| 4448 } | |
| 4449 | |
| 4450 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
| 4451 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4452 if (clcf->noname |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4453 && conf->upstream.upstream == NULL && conf->grpc_lengths == NULL) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4454 { |
| 7233 | 4455 conf->upstream.upstream = prev->upstream.upstream; |
| 4456 conf->host = prev->host; | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4457 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4458 conf->grpc_lengths = prev->grpc_lengths; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4459 conf->grpc_values = prev->grpc_values; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4460 |
| 7233 | 4461 #if (NGX_HTTP_SSL) |
| 4462 conf->upstream.ssl = prev->upstream.ssl; | |
| 4463 #endif | |
| 4464 } | |
| 4465 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4466 if (clcf->lmt_excpt && clcf->handler == NULL |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4467 && (conf->upstream.upstream || conf->grpc_lengths)) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4468 { |
| 7233 | 4469 clcf->handler = ngx_http_grpc_handler; |
| 4470 } | |
| 4471 | |
| 4472 if (conf->headers_source == NULL) { | |
| 4473 conf->headers = prev->headers; | |
| 4474 conf->headers_source = prev->headers_source; | |
| 4475 conf->host_set = prev->host_set; | |
| 4476 } | |
| 4477 | |
| 4478 rc = ngx_http_grpc_init_headers(cf, conf, &conf->headers, | |
| 4479 ngx_http_grpc_headers); | |
| 4480 if (rc != NGX_OK) { | |
| 4481 return NGX_CONF_ERROR; | |
| 4482 } | |
| 4483 | |
| 4484 /* | |
| 4485 * special handling to preserve conf->headers in the "http" section | |
| 4486 * to inherit it to all servers | |
| 4487 */ | |
| 4488 | |
| 4489 if (prev->headers.hash.buckets == NULL | |
| 4490 && conf->headers_source == prev->headers_source) | |
| 4491 { | |
| 4492 prev->headers = conf->headers; | |
| 4493 prev->host_set = conf->host_set; | |
| 4494 } | |
| 4495 | |
| 4496 return NGX_CONF_OK; | |
| 4497 } | |
| 4498 | |
| 4499 | |
| 4500 static ngx_int_t | |
| 4501 ngx_http_grpc_init_headers(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *conf, | |
| 4502 ngx_http_grpc_headers_t *headers, ngx_keyval_t *default_headers) | |
| 4503 { | |
| 4504 u_char *p; | |
| 4505 size_t size; | |
| 4506 uintptr_t *code; | |
| 4507 ngx_uint_t i; | |
| 4508 ngx_array_t headers_names, headers_merged; | |
| 4509 ngx_keyval_t *src, *s, *h; | |
| 4510 ngx_hash_key_t *hk; | |
| 4511 ngx_hash_init_t hash; | |
| 4512 ngx_http_script_compile_t sc; | |
| 4513 ngx_http_script_copy_code_t *copy; | |
| 4514 | |
| 4515 if (headers->hash.buckets) { | |
| 4516 return NGX_OK; | |
| 4517 } | |
| 4518 | |
| 4519 if (ngx_array_init(&headers_names, cf->temp_pool, 4, sizeof(ngx_hash_key_t)) | |
| 4520 != NGX_OK) | |
| 4521 { | |
| 4522 return NGX_ERROR; | |
| 4523 } | |
| 4524 | |
| 4525 if (ngx_array_init(&headers_merged, cf->temp_pool, 4, sizeof(ngx_keyval_t)) | |
| 4526 != NGX_OK) | |
| 4527 { | |
| 4528 return NGX_ERROR; | |
| 4529 } | |
| 4530 | |
| 4531 headers->lengths = ngx_array_create(cf->pool, 64, 1); | |
| 4532 if (headers->lengths == NULL) { | |
| 4533 return NGX_ERROR; | |
| 4534 } | |
| 4535 | |
| 4536 headers->values = ngx_array_create(cf->pool, 512, 1); | |
| 4537 if (headers->values == NULL) { | |
| 4538 return NGX_ERROR; | |
| 4539 } | |
| 4540 | |
| 4541 if (conf->headers_source) { | |
| 4542 | |
| 4543 src = conf->headers_source->elts; | |
| 4544 for (i = 0; i < conf->headers_source->nelts; i++) { | |
| 4545 | |
| 4546 if (src[i].key.len == 4 | |
| 4547 && ngx_strncasecmp(src[i].key.data, (u_char *) "Host", 4) == 0) | |
| 4548 { | |
| 4549 conf->host_set = 1; | |
| 4550 } | |
| 4551 | |
| 4552 s = ngx_array_push(&headers_merged); | |
| 4553 if (s == NULL) { | |
| 4554 return NGX_ERROR; | |
| 4555 } | |
| 4556 | |
| 4557 *s = src[i]; | |
| 4558 } | |
| 4559 } | |
| 4560 | |
| 4561 h = default_headers; | |
| 4562 | |
| 4563 while (h->key.len) { | |
| 4564 | |
| 4565 src = headers_merged.elts; | |
| 4566 for (i = 0; i < headers_merged.nelts; i++) { | |
| 4567 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) { | |
| 4568 goto next; | |
| 4569 } | |
| 4570 } | |
| 4571 | |
| 4572 s = ngx_array_push(&headers_merged); | |
| 4573 if (s == NULL) { | |
| 4574 return NGX_ERROR; | |
| 4575 } | |
| 4576 | |
| 4577 *s = *h; | |
| 4578 | |
| 4579 next: | |
| 4580 | |
| 4581 h++; | |
| 4582 } | |
| 4583 | |
| 4584 | |
| 4585 src = headers_merged.elts; | |
| 4586 for (i = 0; i < headers_merged.nelts; i++) { | |
| 4587 | |
| 4588 hk = ngx_array_push(&headers_names); | |
| 4589 if (hk == NULL) { | |
| 4590 return NGX_ERROR; | |
| 4591 } | |
| 4592 | |
| 4593 hk->key = src[i].key; | |
| 4594 hk->key_hash = ngx_hash_key_lc(src[i].key.data, src[i].key.len); | |
| 4595 hk->value = (void *) 1; | |
| 4596 | |
| 4597 if (src[i].value.len == 0) { | |
| 4598 continue; | |
| 4599 } | |
| 4600 | |
| 4601 copy = ngx_array_push_n(headers->lengths, | |
| 4602 sizeof(ngx_http_script_copy_code_t)); | |
| 4603 if (copy == NULL) { | |
| 4604 return NGX_ERROR; | |
| 4605 } | |
| 4606 | |
|
7271
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
7249
diff
changeset
|
4607 copy->code = (ngx_http_script_code_pt) (void *) |
|
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
7249
diff
changeset
|
4608 ngx_http_script_copy_len_code; |
| 7233 | 4609 copy->len = src[i].key.len; |
| 4610 | |
| 4611 size = (sizeof(ngx_http_script_copy_code_t) | |
| 4612 + src[i].key.len + sizeof(uintptr_t) - 1) | |
| 4613 & ~(sizeof(uintptr_t) - 1); | |
| 4614 | |
| 4615 copy = ngx_array_push_n(headers->values, size); | |
| 4616 if (copy == NULL) { | |
| 4617 return NGX_ERROR; | |
| 4618 } | |
| 4619 | |
| 4620 copy->code = ngx_http_script_copy_code; | |
| 4621 copy->len = src[i].key.len; | |
| 4622 | |
| 4623 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); | |
| 4624 ngx_memcpy(p, src[i].key.data, src[i].key.len); | |
| 4625 | |
| 4626 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
| 4627 | |
| 4628 sc.cf = cf; | |
| 4629 sc.source = &src[i].value; | |
| 4630 sc.flushes = &headers->flushes; | |
| 4631 sc.lengths = &headers->lengths; | |
| 4632 sc.values = &headers->values; | |
| 4633 | |
| 4634 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
| 4635 return NGX_ERROR; | |
| 4636 } | |
| 4637 | |
| 4638 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
| 4639 if (code == NULL) { | |
| 4640 return NGX_ERROR; | |
| 4641 } | |
| 4642 | |
| 4643 *code = (uintptr_t) NULL; | |
| 4644 | |
| 4645 code = ngx_array_push_n(headers->values, sizeof(uintptr_t)); | |
| 4646 if (code == NULL) { | |
| 4647 return NGX_ERROR; | |
| 4648 } | |
| 4649 | |
| 4650 *code = (uintptr_t) NULL; | |
| 4651 } | |
| 4652 | |
| 4653 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
| 4654 if (code == NULL) { | |
| 4655 return NGX_ERROR; | |
| 4656 } | |
| 4657 | |
| 4658 *code = (uintptr_t) NULL; | |
| 4659 | |
| 4660 | |
| 4661 hash.hash = &headers->hash; | |
| 4662 hash.key = ngx_hash_key_lc; | |
| 4663 hash.max_size = 512; | |
| 4664 hash.bucket_size = 64; | |
| 4665 hash.name = "grpc_headers_hash"; | |
| 4666 hash.pool = cf->pool; | |
| 4667 hash.temp_pool = NULL; | |
| 4668 | |
| 4669 return ngx_hash_init(&hash, headers_names.elts, headers_names.nelts); | |
| 4670 } | |
| 4671 | |
| 4672 | |
| 4673 static char * | |
| 4674 ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 4675 { | |
| 4676 ngx_http_grpc_loc_conf_t *glcf = conf; | |
| 4677 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4678 size_t add; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4679 ngx_str_t *value, *url; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4680 ngx_url_t u; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4681 ngx_uint_t n; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4682 ngx_http_core_loc_conf_t *clcf; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4683 ngx_http_script_compile_t sc; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4684 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4685 if (glcf->upstream.upstream || glcf->grpc_lengths) { |
| 7233 | 4686 return "is duplicate"; |
| 4687 } | |
| 4688 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4689 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4690 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4691 clcf->handler = ngx_http_grpc_handler; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4692 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4693 if (clcf->name.len && clcf->name.data[clcf->name.len - 1] == '/') { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4694 clcf->auto_redirect = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4695 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4696 |
| 7233 | 4697 value = cf->args->elts; |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4698 |
| 7233 | 4699 url = &value[1]; |
| 4700 | |
|
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4701 n = ngx_http_script_variables_count(url); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4702 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4703 if (n) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4704 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4705 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4706 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4707 sc.cf = cf; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4708 sc.source = url; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4709 sc.lengths = &glcf->grpc_lengths; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4710 sc.values = &glcf->grpc_values; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4711 sc.variables = n; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4712 sc.complete_lengths = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4713 sc.complete_values = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4714 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4715 if (ngx_http_script_compile(&sc) != NGX_OK) { |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4716 return NGX_CONF_ERROR; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4717 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4718 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4719 #if (NGX_HTTP_SSL) |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4720 glcf->ssl = 1; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4721 #endif |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4722 |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4723 return NGX_CONF_OK; |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4724 } |
|
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4725 |
| 7233 | 4726 if (ngx_strncasecmp(url->data, (u_char *) "grpc://", 7) == 0) { |
| 4727 add = 7; | |
| 4728 | |
| 4729 } else if (ngx_strncasecmp(url->data, (u_char *) "grpcs://", 8) == 0) { | |
| 4730 | |
| 4731 #if (NGX_HTTP_SSL) | |
| 4732 glcf->ssl = 1; | |
| 4733 | |
| 4734 add = 8; | |
| 4735 #else | |
| 4736 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 4737 "grpcs protocol requires SSL support"); | |
| 4738 return NGX_CONF_ERROR; | |
| 4739 #endif | |
| 4740 | |
| 4741 } else { | |
| 4742 add = 0; | |
| 4743 } | |
| 4744 | |
| 4745 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 4746 | |
| 4747 u.url.len = url->len - add; | |
| 4748 u.url.data = url->data + add; | |
| 4749 u.no_resolve = 1; | |
| 4750 | |
| 4751 glcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); | |
| 4752 if (glcf->upstream.upstream == NULL) { | |
| 4753 return NGX_CONF_ERROR; | |
| 4754 } | |
| 4755 | |
| 4756 if (u.family != AF_UNIX) { | |
| 4757 | |
| 4758 if (u.no_port) { | |
| 4759 glcf->host = u.host; | |
| 4760 | |
| 4761 } else { | |
| 4762 glcf->host.len = u.host.len + 1 + u.port_text.len; | |
| 4763 glcf->host.data = u.host.data; | |
| 4764 } | |
| 4765 | |
| 4766 } else { | |
| 4767 ngx_str_set(&glcf->host, "localhost"); | |
| 4768 } | |
| 4769 | |
| 4770 return NGX_CONF_OK; | |
| 4771 } | |
| 4772 | |
| 4773 | |
| 4774 #if (NGX_HTTP_SSL) | |
| 4775 | |
| 4776 static char * | |
| 4777 ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 4778 { | |
| 4779 ngx_http_grpc_loc_conf_t *glcf = conf; | |
| 4780 | |
| 4781 ngx_str_t *value; | |
| 4782 | |
| 4783 if (glcf->ssl_passwords != NGX_CONF_UNSET_PTR) { | |
| 4784 return "is duplicate"; | |
| 4785 } | |
| 4786 | |
| 4787 value = cf->args->elts; | |
| 4788 | |
| 4789 glcf->ssl_passwords = ngx_ssl_read_password_file(cf, &value[1]); | |
| 4790 | |
| 4791 if (glcf->ssl_passwords == NULL) { | |
| 4792 return NGX_CONF_ERROR; | |
| 4793 } | |
| 4794 | |
| 4795 return NGX_CONF_OK; | |
| 4796 } | |
| 4797 | |
| 4798 | |
| 4799 static ngx_int_t | |
| 4800 ngx_http_grpc_set_ssl(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *glcf) | |
| 4801 { | |
| 4802 ngx_pool_cleanup_t *cln; | |
| 4803 | |
| 4804 glcf->upstream.ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t)); | |
| 4805 if (glcf->upstream.ssl == NULL) { | |
| 4806 return NGX_ERROR; | |
| 4807 } | |
| 4808 | |
| 4809 glcf->upstream.ssl->log = cf->log; | |
| 4810 | |
| 4811 if (ngx_ssl_create(glcf->upstream.ssl, glcf->ssl_protocols, NULL) | |
| 4812 != NGX_OK) | |
| 4813 { | |
| 4814 return NGX_ERROR; | |
| 4815 } | |
| 4816 | |
| 4817 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
| 4818 if (cln == NULL) { | |
|
7473
8981dbb12254
SSL: fixed potential leak on memory allocation errors.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7379
diff
changeset
|
4819 ngx_ssl_cleanup_ctx(glcf->upstream.ssl); |
| 7233 | 4820 return NGX_ERROR; |
| 4821 } | |
| 4822 | |
| 4823 cln->handler = ngx_ssl_cleanup_ctx; | |
| 4824 cln->data = glcf->upstream.ssl; | |
| 4825 | |
| 4826 if (glcf->ssl_certificate.len) { | |
| 4827 | |
| 4828 if (glcf->ssl_certificate_key.len == 0) { | |
| 4829 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4830 "no \"grpc_ssl_certificate_key\" is defined " | |
| 4831 "for certificate \"%V\"", &glcf->ssl_certificate); | |
| 4832 return NGX_ERROR; | |
| 4833 } | |
| 4834 | |
| 4835 if (ngx_ssl_certificate(cf, glcf->upstream.ssl, &glcf->ssl_certificate, | |
| 4836 &glcf->ssl_certificate_key, glcf->ssl_passwords) | |
| 4837 != NGX_OK) | |
| 4838 { | |
| 4839 return NGX_ERROR; | |
| 4840 } | |
| 4841 } | |
| 4842 | |
| 4843 if (ngx_ssl_ciphers(cf, glcf->upstream.ssl, &glcf->ssl_ciphers, 0) | |
| 4844 != NGX_OK) | |
| 4845 { | |
| 4846 return NGX_ERROR; | |
| 4847 } | |
| 4848 | |
| 4849 if (glcf->upstream.ssl_verify) { | |
| 4850 if (glcf->ssl_trusted_certificate.len == 0) { | |
| 4851 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4852 "no grpc_ssl_trusted_certificate for grpc_ssl_verify"); | |
| 4853 return NGX_ERROR; | |
| 4854 } | |
| 4855 | |
| 4856 if (ngx_ssl_trusted_certificate(cf, glcf->upstream.ssl, | |
| 4857 &glcf->ssl_trusted_certificate, | |
| 4858 glcf->ssl_verify_depth) | |
| 4859 != NGX_OK) | |
| 4860 { | |
| 4861 return NGX_ERROR; | |
| 4862 } | |
| 4863 | |
| 4864 if (ngx_ssl_crl(cf, glcf->upstream.ssl, &glcf->ssl_crl) != NGX_OK) { | |
| 4865 return NGX_ERROR; | |
| 4866 } | |
| 4867 } | |
| 4868 | |
|
7320
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4869 if (ngx_ssl_client_session_cache(cf, glcf->upstream.ssl, |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4870 glcf->upstream.ssl_session_reuse) |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4871 != NGX_OK) |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4872 { |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4873 return NGX_ERROR; |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4874 } |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4875 |
| 7233 | 4876 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
| 4877 | |
| 4878 if (SSL_CTX_set_alpn_protos(glcf->upstream.ssl->ctx, | |
| 4879 (u_char *) "\x02h2", 3) | |
| 4880 != 0) | |
| 4881 { | |
| 4882 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4883 "SSL_CTX_set_alpn_protos() failed"); | |
| 4884 return NGX_ERROR; | |
| 4885 } | |
| 4886 | |
| 4887 #endif | |
| 4888 | |
| 4889 return NGX_OK; | |
| 4890 } | |
| 4891 | |
| 4892 #endif |