Mercurial > hg > nginx
annotate src/http/modules/ngx_http_grpc_module.c @ 7371:8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
The directives enable the use of the SO_KEEPALIVE option on
upstream connections. By default, the value is left unchanged.
| author | Vladimir Homutov <vl@nginx.com> |
|---|---|
| date | Wed, 03 Oct 2018 14:08:51 +0300 |
| parents | 67c6cb7f477c |
| children | 57463f4e2fcd |
| 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 | |
| 30 #if (NGX_HTTP_SSL) | |
| 31 ngx_uint_t ssl; | |
| 32 ngx_uint_t ssl_protocols; | |
| 33 ngx_str_t ssl_ciphers; | |
| 34 ngx_uint_t ssl_verify_depth; | |
| 35 ngx_str_t ssl_trusted_certificate; | |
| 36 ngx_str_t ssl_crl; | |
| 37 ngx_str_t ssl_certificate; | |
| 38 ngx_str_t ssl_certificate_key; | |
| 39 ngx_array_t *ssl_passwords; | |
| 40 #endif | |
| 41 } ngx_http_grpc_loc_conf_t; | |
| 42 | |
| 43 | |
| 44 typedef enum { | |
| 45 ngx_http_grpc_st_start = 0, | |
| 46 ngx_http_grpc_st_length_2, | |
| 47 ngx_http_grpc_st_length_3, | |
| 48 ngx_http_grpc_st_type, | |
| 49 ngx_http_grpc_st_flags, | |
| 50 ngx_http_grpc_st_stream_id, | |
| 51 ngx_http_grpc_st_stream_id_2, | |
| 52 ngx_http_grpc_st_stream_id_3, | |
| 53 ngx_http_grpc_st_stream_id_4, | |
| 54 ngx_http_grpc_st_payload, | |
| 55 ngx_http_grpc_st_padding | |
| 56 } ngx_http_grpc_state_e; | |
| 57 | |
| 58 | |
| 59 typedef struct { | |
| 60 size_t init_window; | |
| 61 size_t send_window; | |
| 62 size_t recv_window; | |
| 63 ngx_uint_t last_stream_id; | |
| 64 } ngx_http_grpc_conn_t; | |
| 65 | |
| 66 | |
| 67 typedef struct { | |
| 68 ngx_http_grpc_state_e state; | |
| 69 ngx_uint_t frame_state; | |
| 70 ngx_uint_t fragment_state; | |
| 71 | |
| 72 ngx_chain_t *in; | |
| 73 ngx_chain_t *out; | |
| 74 ngx_chain_t *free; | |
| 75 ngx_chain_t *busy; | |
| 76 | |
| 77 ngx_http_grpc_conn_t *connection; | |
| 78 | |
| 79 ngx_uint_t id; | |
| 80 | |
| 81 ssize_t send_window; | |
| 82 size_t recv_window; | |
| 83 | |
| 84 size_t rest; | |
| 85 ngx_uint_t stream_id; | |
| 86 u_char type; | |
| 87 u_char flags; | |
| 88 u_char padding; | |
| 89 | |
| 90 ngx_uint_t error; | |
| 91 ngx_uint_t window_update; | |
| 92 | |
| 93 ngx_uint_t setting_id; | |
| 94 ngx_uint_t setting_value; | |
| 95 | |
| 96 u_char ping_data[8]; | |
| 97 | |
| 98 ngx_uint_t index; | |
| 99 ngx_str_t name; | |
| 100 ngx_str_t value; | |
| 101 | |
| 102 u_char *field_end; | |
| 103 size_t field_length; | |
| 104 size_t field_rest; | |
| 105 u_char field_state; | |
| 106 | |
| 107 unsigned literal:1; | |
| 108 unsigned field_huffman:1; | |
| 109 | |
| 110 unsigned header_sent:1; | |
| 111 unsigned output_closed:1; | |
|
7350
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gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
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112 unsigned output_blocked:1; |
| 7233 | 113 unsigned parsing_headers:1; |
| 114 unsigned end_stream:1; | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
115 unsigned done:1; |
| 7233 | 116 unsigned status:1; |
| 117 | |
| 118 ngx_http_request_t *request; | |
| 119 } ngx_http_grpc_ctx_t; | |
| 120 | |
| 121 | |
| 122 typedef struct { | |
| 123 u_char length_0; | |
| 124 u_char length_1; | |
| 125 u_char length_2; | |
| 126 u_char type; | |
| 127 u_char flags; | |
| 128 u_char stream_id_0; | |
| 129 u_char stream_id_1; | |
| 130 u_char stream_id_2; | |
| 131 u_char stream_id_3; | |
| 132 } ngx_http_grpc_frame_t; | |
| 133 | |
| 134 | |
| 135 static ngx_int_t ngx_http_grpc_create_request(ngx_http_request_t *r); | |
| 136 static ngx_int_t ngx_http_grpc_reinit_request(ngx_http_request_t *r); | |
| 137 static ngx_int_t ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in); | |
| 138 static ngx_int_t ngx_http_grpc_process_header(ngx_http_request_t *r); | |
| 139 static ngx_int_t ngx_http_grpc_filter_init(void *data); | |
| 140 static ngx_int_t ngx_http_grpc_filter(void *data, ssize_t bytes); | |
| 141 | |
| 142 static ngx_int_t ngx_http_grpc_parse_frame(ngx_http_request_t *r, | |
| 143 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 144 static ngx_int_t ngx_http_grpc_parse_header(ngx_http_request_t *r, | |
| 145 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 146 static ngx_int_t ngx_http_grpc_parse_fragment(ngx_http_request_t *r, | |
| 147 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 148 static ngx_int_t ngx_http_grpc_validate_header_name(ngx_http_request_t *r, | |
| 149 ngx_str_t *s); | |
| 150 static ngx_int_t ngx_http_grpc_validate_header_value(ngx_http_request_t *r, | |
| 151 ngx_str_t *s); | |
| 152 static ngx_int_t ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, | |
| 153 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 154 static ngx_int_t ngx_http_grpc_parse_goaway(ngx_http_request_t *r, | |
| 155 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 156 static ngx_int_t ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
| 157 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 158 static ngx_int_t ngx_http_grpc_parse_settings(ngx_http_request_t *r, | |
| 159 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 160 static ngx_int_t ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
| 161 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
| 162 | |
| 163 static ngx_int_t ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, | |
| 164 ngx_http_grpc_ctx_t *ctx); | |
| 165 static ngx_int_t ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, | |
| 166 ngx_http_grpc_ctx_t *ctx); | |
| 167 static ngx_int_t ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
| 168 ngx_http_grpc_ctx_t *ctx); | |
| 169 | |
| 170 static ngx_chain_t *ngx_http_grpc_get_buf(ngx_http_request_t *r, | |
| 171 ngx_http_grpc_ctx_t *ctx); | |
| 172 static ngx_http_grpc_ctx_t *ngx_http_grpc_get_ctx(ngx_http_request_t *r); | |
| 173 static ngx_int_t ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
| 174 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc); | |
| 175 static void ngx_http_grpc_cleanup(void *data); | |
| 176 | |
| 177 static void ngx_http_grpc_abort_request(ngx_http_request_t *r); | |
| 178 static void ngx_http_grpc_finalize_request(ngx_http_request_t *r, | |
| 179 ngx_int_t rc); | |
| 180 | |
|
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gRPC: special handling of the TE request header.
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parents:
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changeset
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181 static ngx_int_t ngx_http_grpc_internal_trailers_variable( |
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gRPC: special handling of the TE request header.
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parents:
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diff
changeset
|
182 ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); |
|
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gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
183 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
184 static ngx_int_t ngx_http_grpc_add_variables(ngx_conf_t *cf); |
| 7233 | 185 static void *ngx_http_grpc_create_loc_conf(ngx_conf_t *cf); |
| 186 static char *ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, | |
| 187 void *parent, void *child); | |
| 188 static ngx_int_t ngx_http_grpc_init_headers(ngx_conf_t *cf, | |
| 189 ngx_http_grpc_loc_conf_t *conf, ngx_http_grpc_headers_t *headers, | |
| 190 ngx_keyval_t *default_headers); | |
| 191 | |
| 192 static char *ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 193 void *conf); | |
| 194 | |
| 195 #if (NGX_HTTP_SSL) | |
| 196 static char *ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, | |
| 197 ngx_command_t *cmd, void *conf); | |
| 198 static ngx_int_t ngx_http_grpc_set_ssl(ngx_conf_t *cf, | |
| 199 ngx_http_grpc_loc_conf_t *glcf); | |
| 200 #endif | |
| 201 | |
| 202 | |
| 203 static ngx_conf_bitmask_t ngx_http_grpc_next_upstream_masks[] = { | |
| 204 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, | |
| 205 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, | |
| 206 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, | |
| 207 { ngx_string("non_idempotent"), NGX_HTTP_UPSTREAM_FT_NON_IDEMPOTENT }, | |
| 208 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 }, | |
| 209 { ngx_string("http_502"), NGX_HTTP_UPSTREAM_FT_HTTP_502 }, | |
| 210 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 }, | |
| 211 { ngx_string("http_504"), NGX_HTTP_UPSTREAM_FT_HTTP_504 }, | |
| 212 { ngx_string("http_403"), NGX_HTTP_UPSTREAM_FT_HTTP_403 }, | |
| 213 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, | |
| 214 { ngx_string("http_429"), NGX_HTTP_UPSTREAM_FT_HTTP_429 }, | |
| 215 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, | |
| 216 { ngx_null_string, 0 } | |
| 217 }; | |
| 218 | |
| 219 | |
| 220 #if (NGX_HTTP_SSL) | |
| 221 | |
| 222 static ngx_conf_bitmask_t ngx_http_grpc_ssl_protocols[] = { | |
| 223 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
| 224 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
| 225 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
| 226 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, | |
| 227 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, | |
| 228 { ngx_string("TLSv1.3"), NGX_SSL_TLSv1_3 }, | |
| 229 { ngx_null_string, 0 } | |
| 230 }; | |
| 231 | |
| 232 #endif | |
| 233 | |
| 234 | |
| 235 static ngx_command_t ngx_http_grpc_commands[] = { | |
| 236 | |
| 237 { ngx_string("grpc_pass"), | |
| 238 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
| 239 ngx_http_grpc_pass, | |
| 240 NGX_HTTP_LOC_CONF_OFFSET, | |
| 241 0, | |
| 242 NULL }, | |
| 243 | |
| 244 { ngx_string("grpc_bind"), | |
| 245 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, | |
| 246 ngx_http_upstream_bind_set_slot, | |
| 247 NGX_HTTP_LOC_CONF_OFFSET, | |
| 248 offsetof(ngx_http_grpc_loc_conf_t, upstream.local), | |
| 249 NULL }, | |
| 250 | |
|
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Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
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251 { ngx_string("grpc_socket_keepalive"), |
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8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
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252 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
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Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
253 ngx_conf_set_flag_slot, |
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8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
254 NGX_HTTP_LOC_CONF_OFFSET, |
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Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
255 offsetof(ngx_http_grpc_loc_conf_t, upstream.socket_keepalive), |
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8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
256 NULL }, |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
257 |
| 7233 | 258 { ngx_string("grpc_connect_timeout"), |
| 259 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 260 ngx_conf_set_msec_slot, | |
| 261 NGX_HTTP_LOC_CONF_OFFSET, | |
| 262 offsetof(ngx_http_grpc_loc_conf_t, upstream.connect_timeout), | |
| 263 NULL }, | |
| 264 | |
| 265 { ngx_string("grpc_send_timeout"), | |
| 266 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 267 ngx_conf_set_msec_slot, | |
| 268 NGX_HTTP_LOC_CONF_OFFSET, | |
| 269 offsetof(ngx_http_grpc_loc_conf_t, upstream.send_timeout), | |
| 270 NULL }, | |
| 271 | |
| 272 { ngx_string("grpc_intercept_errors"), | |
| 273 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 274 ngx_conf_set_flag_slot, | |
| 275 NGX_HTTP_LOC_CONF_OFFSET, | |
| 276 offsetof(ngx_http_grpc_loc_conf_t, upstream.intercept_errors), | |
| 277 NULL }, | |
| 278 | |
| 279 { ngx_string("grpc_buffer_size"), | |
| 280 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 281 ngx_conf_set_size_slot, | |
| 282 NGX_HTTP_LOC_CONF_OFFSET, | |
| 283 offsetof(ngx_http_grpc_loc_conf_t, upstream.buffer_size), | |
| 284 NULL }, | |
| 285 | |
| 286 { ngx_string("grpc_read_timeout"), | |
| 287 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 288 ngx_conf_set_msec_slot, | |
| 289 NGX_HTTP_LOC_CONF_OFFSET, | |
| 290 offsetof(ngx_http_grpc_loc_conf_t, upstream.read_timeout), | |
| 291 NULL }, | |
| 292 | |
| 293 { ngx_string("grpc_next_upstream"), | |
| 294 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 295 ngx_conf_set_bitmask_slot, | |
| 296 NGX_HTTP_LOC_CONF_OFFSET, | |
| 297 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream), | |
| 298 &ngx_http_grpc_next_upstream_masks }, | |
| 299 | |
| 300 { ngx_string("grpc_next_upstream_tries"), | |
| 301 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 302 ngx_conf_set_num_slot, | |
| 303 NGX_HTTP_LOC_CONF_OFFSET, | |
| 304 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_tries), | |
| 305 NULL }, | |
| 306 | |
| 307 { ngx_string("grpc_next_upstream_timeout"), | |
| 308 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 309 ngx_conf_set_msec_slot, | |
| 310 NGX_HTTP_LOC_CONF_OFFSET, | |
| 311 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_timeout), | |
| 312 NULL }, | |
| 313 | |
| 314 { ngx_string("grpc_set_header"), | |
| 315 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
| 316 ngx_conf_set_keyval_slot, | |
| 317 NGX_HTTP_LOC_CONF_OFFSET, | |
| 318 offsetof(ngx_http_grpc_loc_conf_t, headers_source), | |
| 319 NULL }, | |
| 320 | |
| 321 { ngx_string("grpc_pass_header"), | |
| 322 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 323 ngx_conf_set_str_array_slot, | |
| 324 NGX_HTTP_LOC_CONF_OFFSET, | |
| 325 offsetof(ngx_http_grpc_loc_conf_t, upstream.pass_headers), | |
| 326 NULL }, | |
| 327 | |
| 328 { ngx_string("grpc_hide_header"), | |
| 329 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 330 ngx_conf_set_str_array_slot, | |
| 331 NGX_HTTP_LOC_CONF_OFFSET, | |
| 332 offsetof(ngx_http_grpc_loc_conf_t, upstream.hide_headers), | |
| 333 NULL }, | |
| 334 | |
| 335 { ngx_string("grpc_ignore_headers"), | |
| 336 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 337 ngx_conf_set_bitmask_slot, | |
| 338 NGX_HTTP_LOC_CONF_OFFSET, | |
| 339 offsetof(ngx_http_grpc_loc_conf_t, upstream.ignore_headers), | |
| 340 &ngx_http_upstream_ignore_headers_masks }, | |
| 341 | |
| 342 #if (NGX_HTTP_SSL) | |
| 343 | |
| 344 { ngx_string("grpc_ssl_session_reuse"), | |
| 345 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 346 ngx_conf_set_flag_slot, | |
| 347 NGX_HTTP_LOC_CONF_OFFSET, | |
| 348 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_session_reuse), | |
| 349 NULL }, | |
| 350 | |
| 351 { ngx_string("grpc_ssl_protocols"), | |
| 352 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 353 ngx_conf_set_bitmask_slot, | |
| 354 NGX_HTTP_LOC_CONF_OFFSET, | |
| 355 offsetof(ngx_http_grpc_loc_conf_t, ssl_protocols), | |
| 356 &ngx_http_grpc_ssl_protocols }, | |
| 357 | |
| 358 { ngx_string("grpc_ssl_ciphers"), | |
| 359 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 360 ngx_conf_set_str_slot, | |
| 361 NGX_HTTP_LOC_CONF_OFFSET, | |
| 362 offsetof(ngx_http_grpc_loc_conf_t, ssl_ciphers), | |
| 363 NULL }, | |
| 364 | |
| 365 { ngx_string("grpc_ssl_name"), | |
| 366 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 367 ngx_http_set_complex_value_slot, | |
| 368 NGX_HTTP_LOC_CONF_OFFSET, | |
| 369 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_name), | |
| 370 NULL }, | |
| 371 | |
| 372 { ngx_string("grpc_ssl_server_name"), | |
| 373 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 374 ngx_conf_set_flag_slot, | |
| 375 NGX_HTTP_LOC_CONF_OFFSET, | |
| 376 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_server_name), | |
| 377 NULL }, | |
| 378 | |
| 379 { ngx_string("grpc_ssl_verify"), | |
| 380 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
| 381 ngx_conf_set_flag_slot, | |
| 382 NGX_HTTP_LOC_CONF_OFFSET, | |
| 383 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_verify), | |
| 384 NULL }, | |
| 385 | |
| 386 { ngx_string("grpc_ssl_verify_depth"), | |
| 387 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 388 ngx_conf_set_num_slot, | |
| 389 NGX_HTTP_LOC_CONF_OFFSET, | |
| 390 offsetof(ngx_http_grpc_loc_conf_t, ssl_verify_depth), | |
| 391 NULL }, | |
| 392 | |
| 393 { ngx_string("grpc_ssl_trusted_certificate"), | |
| 394 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 395 ngx_conf_set_str_slot, | |
| 396 NGX_HTTP_LOC_CONF_OFFSET, | |
| 397 offsetof(ngx_http_grpc_loc_conf_t, ssl_trusted_certificate), | |
| 398 NULL }, | |
| 399 | |
| 400 { ngx_string("grpc_ssl_crl"), | |
| 401 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 402 ngx_conf_set_str_slot, | |
| 403 NGX_HTTP_LOC_CONF_OFFSET, | |
| 404 offsetof(ngx_http_grpc_loc_conf_t, ssl_crl), | |
| 405 NULL }, | |
| 406 | |
| 407 { ngx_string("grpc_ssl_certificate"), | |
| 408 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 409 ngx_conf_set_str_slot, | |
| 410 NGX_HTTP_LOC_CONF_OFFSET, | |
| 411 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate), | |
| 412 NULL }, | |
| 413 | |
| 414 { ngx_string("grpc_ssl_certificate_key"), | |
| 415 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 416 ngx_conf_set_str_slot, | |
| 417 NGX_HTTP_LOC_CONF_OFFSET, | |
| 418 offsetof(ngx_http_grpc_loc_conf_t, ssl_certificate_key), | |
| 419 NULL }, | |
| 420 | |
| 421 { ngx_string("grpc_ssl_password_file"), | |
| 422 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 423 ngx_http_grpc_ssl_password_file, | |
| 424 NGX_HTTP_LOC_CONF_OFFSET, | |
| 425 0, | |
| 426 NULL }, | |
| 427 | |
| 428 #endif | |
| 429 | |
| 430 ngx_null_command | |
| 431 }; | |
| 432 | |
| 433 | |
| 434 static ngx_http_module_t ngx_http_grpc_module_ctx = { | |
|
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435 ngx_http_grpc_add_variables, /* preconfiguration */ |
| 7233 | 436 NULL, /* postconfiguration */ |
| 437 | |
| 438 NULL, /* create main configuration */ | |
| 439 NULL, /* init main configuration */ | |
| 440 | |
| 441 NULL, /* create server configuration */ | |
| 442 NULL, /* merge server configuration */ | |
| 443 | |
| 444 ngx_http_grpc_create_loc_conf, /* create location configuration */ | |
| 445 ngx_http_grpc_merge_loc_conf /* merge location configuration */ | |
| 446 }; | |
| 447 | |
| 448 | |
| 449 ngx_module_t ngx_http_grpc_module = { | |
| 450 NGX_MODULE_V1, | |
| 451 &ngx_http_grpc_module_ctx, /* module context */ | |
| 452 ngx_http_grpc_commands, /* module directives */ | |
| 453 NGX_HTTP_MODULE, /* module type */ | |
| 454 NULL, /* init master */ | |
| 455 NULL, /* init module */ | |
| 456 NULL, /* init process */ | |
| 457 NULL, /* init thread */ | |
| 458 NULL, /* exit thread */ | |
| 459 NULL, /* exit process */ | |
| 460 NULL, /* exit master */ | |
| 461 NGX_MODULE_V1_PADDING | |
| 462 }; | |
| 463 | |
| 464 | |
| 465 static u_char ngx_http_grpc_connection_start[] = | |
| 466 "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" /* connection preface */ | |
| 467 | |
| 468 "\x00\x00\x12\x04\x00\x00\x00\x00\x00" /* settings frame */ | |
| 469 "\x00\x01\x00\x00\x00\x00" /* header table size */ | |
| 470 "\x00\x02\x00\x00\x00\x00" /* disable push */ | |
| 471 "\x00\x04\x7f\xff\xff\xff" /* initial window */ | |
| 472 | |
| 473 "\x00\x00\x04\x08\x00\x00\x00\x00\x00" /* window update frame */ | |
| 474 "\x7f\xff\x00\x00"; | |
| 475 | |
| 476 | |
| 477 static ngx_keyval_t ngx_http_grpc_headers[] = { | |
| 478 { ngx_string("Content-Length"), ngx_string("$content_length") }, | |
|
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479 { ngx_string("TE"), ngx_string("$grpc_internal_trailers") }, |
| 7233 | 480 { ngx_string("Host"), ngx_string("") }, |
| 481 { ngx_string("Connection"), ngx_string("") }, | |
| 482 { ngx_string("Transfer-Encoding"), ngx_string("") }, | |
| 483 { ngx_string("Keep-Alive"), ngx_string("") }, | |
| 484 { ngx_string("Expect"), ngx_string("") }, | |
| 485 { ngx_string("Upgrade"), ngx_string("") }, | |
| 486 { ngx_null_string, ngx_null_string } | |
| 487 }; | |
| 488 | |
| 489 | |
| 490 static ngx_str_t ngx_http_grpc_hide_headers[] = { | |
| 491 ngx_string("Date"), | |
| 492 ngx_string("Server"), | |
| 493 ngx_string("X-Accel-Expires"), | |
| 494 ngx_string("X-Accel-Redirect"), | |
| 495 ngx_string("X-Accel-Limit-Rate"), | |
| 496 ngx_string("X-Accel-Buffering"), | |
| 497 ngx_string("X-Accel-Charset"), | |
| 498 ngx_null_string | |
| 499 }; | |
| 500 | |
| 501 | |
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502 static ngx_http_variable_t ngx_http_grpc_vars[] = { |
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503 |
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504 { ngx_string("grpc_internal_trailers"), NULL, |
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505 ngx_http_grpc_internal_trailers_variable, 0, |
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506 NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, |
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507 |
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508 ngx_http_null_variable |
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509 }; |
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510 |
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511 |
| 7233 | 512 static ngx_int_t |
| 513 ngx_http_grpc_handler(ngx_http_request_t *r) | |
| 514 { | |
| 515 ngx_int_t rc; | |
| 516 ngx_http_upstream_t *u; | |
| 517 ngx_http_grpc_ctx_t *ctx; | |
| 518 ngx_http_grpc_loc_conf_t *glcf; | |
| 519 | |
| 520 if (ngx_http_upstream_create(r) != NGX_OK) { | |
| 521 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 522 } | |
| 523 | |
| 524 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); | |
| 525 | |
| 526 u = r->upstream; | |
| 527 | |
| 528 #if (NGX_HTTP_SSL) | |
| 529 u->ssl = (glcf->upstream.ssl != NULL); | |
| 530 | |
| 531 if (u->ssl) { | |
| 532 ngx_str_set(&u->schema, "grpcs://"); | |
| 533 | |
| 534 } else { | |
| 535 ngx_str_set(&u->schema, "grpc://"); | |
| 536 } | |
| 537 #else | |
| 538 ngx_str_set(&u->schema, "grpc://"); | |
| 539 #endif | |
| 540 | |
| 541 u->output.tag = (ngx_buf_tag_t) &ngx_http_grpc_module; | |
| 542 | |
| 543 u->conf = &glcf->upstream; | |
| 544 | |
| 545 u->create_request = ngx_http_grpc_create_request; | |
| 546 u->reinit_request = ngx_http_grpc_reinit_request; | |
| 547 u->process_header = ngx_http_grpc_process_header; | |
| 548 u->abort_request = ngx_http_grpc_abort_request; | |
| 549 u->finalize_request = ngx_http_grpc_finalize_request; | |
| 550 | |
| 551 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_grpc_ctx_t)); | |
| 552 if (ctx == NULL) { | |
| 553 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 554 } | |
| 555 | |
| 556 ctx->request = r; | |
| 557 | |
| 558 ngx_http_set_ctx(r, ctx, ngx_http_grpc_module); | |
| 559 | |
| 560 u->input_filter_init = ngx_http_grpc_filter_init; | |
| 561 u->input_filter = ngx_http_grpc_filter; | |
| 562 u->input_filter_ctx = ctx; | |
| 563 | |
| 564 r->request_body_no_buffering = 1; | |
| 565 | |
| 566 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init); | |
| 567 | |
| 568 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { | |
| 569 return rc; | |
| 570 } | |
| 571 | |
| 572 return NGX_DONE; | |
| 573 } | |
| 574 | |
| 575 | |
| 576 static ngx_int_t | |
| 577 ngx_http_grpc_create_request(ngx_http_request_t *r) | |
| 578 { | |
| 579 u_char *p, *tmp, *key_tmp, *val_tmp, *headers_frame; | |
| 580 size_t len, tmp_len, key_len, val_len, uri_len; | |
| 581 uintptr_t escape; | |
| 582 ngx_buf_t *b; | |
| 583 ngx_uint_t i, next; | |
| 584 ngx_chain_t *cl, *body; | |
| 585 ngx_list_part_t *part; | |
| 586 ngx_table_elt_t *header; | |
| 587 ngx_http_upstream_t *u; | |
| 588 ngx_http_grpc_frame_t *f; | |
| 589 ngx_http_script_code_pt code; | |
| 590 ngx_http_grpc_loc_conf_t *glcf; | |
| 591 ngx_http_script_engine_t e, le; | |
| 592 ngx_http_script_len_code_pt lcode; | |
| 593 | |
| 594 u = r->upstream; | |
| 595 | |
| 596 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); | |
| 597 | |
| 598 len = sizeof(ngx_http_grpc_connection_start) - 1 | |
| 599 + sizeof(ngx_http_grpc_frame_t); /* headers frame */ | |
| 600 | |
| 601 /* :method header */ | |
| 602 | |
| 603 if (r->method == NGX_HTTP_GET || r->method == NGX_HTTP_POST) { | |
| 604 len += 1; | |
| 605 tmp_len = 0; | |
| 606 | |
| 607 } else { | |
| 608 len += 1 + NGX_HTTP_V2_INT_OCTETS + r->method_name.len; | |
| 609 tmp_len = r->method_name.len; | |
| 610 } | |
| 611 | |
| 612 /* :scheme header */ | |
| 613 | |
| 614 len += 1; | |
| 615 | |
| 616 /* :path header */ | |
| 617 | |
| 618 if (r->valid_unparsed_uri) { | |
| 619 escape = 0; | |
| 620 uri_len = r->unparsed_uri.len; | |
| 621 | |
| 622 } else { | |
| 623 escape = 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len, | |
| 624 NGX_ESCAPE_URI); | |
| 625 uri_len = r->uri.len + escape + sizeof("?") - 1 + r->args.len; | |
| 626 } | |
| 627 | |
| 628 len += 1 + NGX_HTTP_V2_INT_OCTETS + uri_len; | |
| 629 | |
| 630 if (tmp_len < uri_len) { | |
| 631 tmp_len = uri_len; | |
| 632 } | |
| 633 | |
| 634 /* :authority header */ | |
| 635 | |
| 636 if (!glcf->host_set) { | |
| 637 len += 1 + NGX_HTTP_V2_INT_OCTETS + glcf->host.len; | |
| 638 | |
| 639 if (tmp_len < glcf->host.len) { | |
| 640 tmp_len = glcf->host.len; | |
| 641 } | |
| 642 } | |
| 643 | |
| 644 /* other headers */ | |
| 645 | |
| 646 ngx_http_script_flush_no_cacheable_variables(r, glcf->headers.flushes); | |
| 647 ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); | |
| 648 | |
| 649 le.ip = glcf->headers.lengths->elts; | |
| 650 le.request = r; | |
| 651 le.flushed = 1; | |
| 652 | |
| 653 while (*(uintptr_t *) le.ip) { | |
| 654 | |
| 655 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 656 key_len = lcode(&le); | |
| 657 | |
| 658 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
| 659 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 660 } | |
| 661 le.ip += sizeof(uintptr_t); | |
| 662 | |
| 663 if (val_len == 0) { | |
| 664 continue; | |
| 665 } | |
| 666 | |
| 667 len += 1 + NGX_HTTP_V2_INT_OCTETS + key_len | |
| 668 + NGX_HTTP_V2_INT_OCTETS + val_len; | |
| 669 | |
| 670 if (tmp_len < key_len) { | |
| 671 tmp_len = key_len; | |
| 672 } | |
| 673 | |
| 674 if (tmp_len < val_len) { | |
| 675 tmp_len = val_len; | |
| 676 } | |
| 677 } | |
| 678 | |
| 679 if (glcf->upstream.pass_request_headers) { | |
| 680 part = &r->headers_in.headers.part; | |
| 681 header = part->elts; | |
| 682 | |
| 683 for (i = 0; /* void */; i++) { | |
| 684 | |
| 685 if (i >= part->nelts) { | |
| 686 if (part->next == NULL) { | |
| 687 break; | |
| 688 } | |
| 689 | |
| 690 part = part->next; | |
| 691 header = part->elts; | |
| 692 i = 0; | |
| 693 } | |
| 694 | |
| 695 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
| 696 header[i].lowcase_key, header[i].key.len)) | |
| 697 { | |
| 698 continue; | |
| 699 } | |
| 700 | |
| 701 len += 1 + NGX_HTTP_V2_INT_OCTETS + header[i].key.len | |
| 702 + NGX_HTTP_V2_INT_OCTETS + header[i].value.len; | |
| 703 | |
| 704 if (tmp_len < header[i].key.len) { | |
| 705 tmp_len = header[i].key.len; | |
| 706 } | |
| 707 | |
| 708 if (tmp_len < header[i].value.len) { | |
| 709 tmp_len = header[i].value.len; | |
| 710 } | |
| 711 } | |
| 712 } | |
| 713 | |
| 714 /* continuation frames */ | |
| 715 | |
| 716 len += sizeof(ngx_http_grpc_frame_t) | |
| 717 * (len / NGX_HTTP_V2_DEFAULT_FRAME_SIZE); | |
| 718 | |
| 719 | |
| 720 b = ngx_create_temp_buf(r->pool, len); | |
| 721 if (b == NULL) { | |
| 722 return NGX_ERROR; | |
| 723 } | |
| 724 | |
| 725 cl = ngx_alloc_chain_link(r->pool); | |
| 726 if (cl == NULL) { | |
| 727 return NGX_ERROR; | |
| 728 } | |
| 729 | |
| 730 cl->buf = b; | |
| 731 cl->next = NULL; | |
| 732 | |
| 733 tmp = ngx_palloc(r->pool, tmp_len * 3); | |
| 734 if (tmp == NULL) { | |
| 735 return NGX_ERROR; | |
| 736 } | |
| 737 | |
| 738 key_tmp = tmp + tmp_len; | |
| 739 val_tmp = tmp + 2 * tmp_len; | |
| 740 | |
| 741 /* connection preface */ | |
| 742 | |
| 743 b->last = ngx_copy(b->last, ngx_http_grpc_connection_start, | |
| 744 sizeof(ngx_http_grpc_connection_start) - 1); | |
| 745 | |
| 746 /* headers frame */ | |
| 747 | |
| 748 headers_frame = b->last; | |
| 749 | |
| 750 f = (ngx_http_grpc_frame_t *) b->last; | |
| 751 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 752 | |
| 753 f->length_0 = 0; | |
| 754 f->length_1 = 0; | |
| 755 f->length_2 = 0; | |
| 756 f->type = NGX_HTTP_V2_HEADERS_FRAME; | |
| 757 f->flags = 0; | |
| 758 f->stream_id_0 = 0; | |
| 759 f->stream_id_1 = 0; | |
| 760 f->stream_id_2 = 0; | |
| 761 f->stream_id_3 = 1; | |
| 762 | |
| 763 if (r->method == NGX_HTTP_GET) { | |
| 764 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_GET_INDEX); | |
| 765 | |
| 766 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 767 "grpc header: \":method: GET\""); | |
| 768 | |
| 769 } else if (r->method == NGX_HTTP_POST) { | |
| 770 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_POST_INDEX); | |
| 771 | |
| 772 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 773 "grpc header: \":method: POST\""); | |
| 774 | |
| 775 } else { | |
| 776 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_METHOD_INDEX); | |
| 777 b->last = ngx_http_v2_write_value(b->last, r->method_name.data, | |
| 778 r->method_name.len, tmp); | |
| 779 | |
| 780 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 781 "grpc header: \":method: %V\"", &r->method_name); | |
| 782 } | |
| 783 | |
| 784 #if (NGX_HTTP_SSL) | |
| 785 if (glcf->ssl) { | |
| 786 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTPS_INDEX); | |
| 787 | |
| 788 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 789 "grpc header: \":scheme: https\""); | |
| 790 } else | |
| 791 #endif | |
| 792 { | |
| 793 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTP_INDEX); | |
| 794 | |
| 795 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 796 "grpc header: \":scheme: http\""); | |
| 797 } | |
| 798 | |
| 799 if (r->valid_unparsed_uri) { | |
| 800 | |
| 801 if (r->unparsed_uri.len == 1 && r->unparsed_uri.data[0] == '/') { | |
| 802 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_PATH_ROOT_INDEX); | |
| 803 | |
| 804 } else { | |
| 805 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 806 b->last = ngx_http_v2_write_value(b->last, r->unparsed_uri.data, | |
| 807 r->unparsed_uri.len, tmp); | |
| 808 } | |
| 809 | |
| 810 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 811 "grpc header: \":path: %V\"", &r->unparsed_uri); | |
| 812 | |
| 813 } else if (escape || r->args.len > 0) { | |
| 814 p = val_tmp; | |
| 815 | |
| 816 if (escape) { | |
| 817 p = (u_char *) ngx_escape_uri(p, r->uri.data, r->uri.len, | |
| 818 NGX_ESCAPE_URI); | |
| 819 | |
| 820 } else { | |
| 821 p = ngx_copy(p, r->uri.data, r->uri.len); | |
| 822 } | |
| 823 | |
| 824 if (r->args.len > 0) { | |
| 825 *p++ = '?'; | |
| 826 p = ngx_copy(p, r->args.data, r->args.len); | |
| 827 } | |
| 828 | |
| 829 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 830 b->last = ngx_http_v2_write_value(b->last, val_tmp, p - val_tmp, tmp); | |
| 831 | |
| 832 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 833 "grpc header: \":path: %*s\"", p - val_tmp, val_tmp); | |
| 834 | |
| 835 } else { | |
| 836 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
| 837 b->last = ngx_http_v2_write_value(b->last, r->uri.data, | |
| 838 r->uri.len, tmp); | |
| 839 | |
| 840 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 841 "grpc header: \":path: %V\"", &r->uri); | |
| 842 } | |
| 843 | |
| 844 if (!glcf->host_set) { | |
| 845 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_AUTHORITY_INDEX); | |
| 846 b->last = ngx_http_v2_write_value(b->last, glcf->host.data, | |
| 847 glcf->host.len, tmp); | |
| 848 | |
| 849 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 850 "grpc header: \":authority: %V\"", &glcf->host); | |
| 851 } | |
| 852 | |
| 853 ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); | |
| 854 | |
| 855 e.ip = glcf->headers.values->elts; | |
| 856 e.request = r; | |
| 857 e.flushed = 1; | |
| 858 | |
| 859 le.ip = glcf->headers.lengths->elts; | |
| 860 | |
| 861 while (*(uintptr_t *) le.ip) { | |
| 862 | |
| 863 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 864 key_len = lcode(&le); | |
| 865 | |
| 866 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
| 867 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 868 } | |
| 869 le.ip += sizeof(uintptr_t); | |
| 870 | |
| 871 if (val_len == 0) { | |
| 872 e.skip = 1; | |
| 873 | |
| 874 while (*(uintptr_t *) e.ip) { | |
| 875 code = *(ngx_http_script_code_pt *) e.ip; | |
| 876 code((ngx_http_script_engine_t *) &e); | |
| 877 } | |
| 878 e.ip += sizeof(uintptr_t); | |
| 879 | |
| 880 e.skip = 0; | |
| 881 | |
| 882 continue; | |
| 883 } | |
| 884 | |
| 885 *b->last++ = 0; | |
| 886 | |
| 887 e.pos = key_tmp; | |
| 888 | |
| 889 code = *(ngx_http_script_code_pt *) e.ip; | |
| 890 code((ngx_http_script_engine_t *) &e); | |
| 891 | |
| 892 b->last = ngx_http_v2_write_name(b->last, key_tmp, key_len, tmp); | |
| 893 | |
| 894 e.pos = val_tmp; | |
| 895 | |
| 896 while (*(uintptr_t *) e.ip) { | |
| 897 code = *(ngx_http_script_code_pt *) e.ip; | |
| 898 code((ngx_http_script_engine_t *) &e); | |
| 899 } | |
| 900 e.ip += sizeof(uintptr_t); | |
| 901 | |
| 902 b->last = ngx_http_v2_write_value(b->last, val_tmp, val_len, tmp); | |
| 903 | |
| 904 #if (NGX_DEBUG) | |
| 905 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 906 ngx_strlow(key_tmp, key_tmp, key_len); | |
| 907 | |
| 908 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 909 "grpc header: \"%*s: %*s\"", | |
| 910 key_len, key_tmp, val_len, val_tmp); | |
| 911 } | |
| 912 #endif | |
| 913 } | |
| 914 | |
| 915 if (glcf->upstream.pass_request_headers) { | |
| 916 part = &r->headers_in.headers.part; | |
| 917 header = part->elts; | |
| 918 | |
| 919 for (i = 0; /* void */; i++) { | |
| 920 | |
| 921 if (i >= part->nelts) { | |
| 922 if (part->next == NULL) { | |
| 923 break; | |
| 924 } | |
| 925 | |
| 926 part = part->next; | |
| 927 header = part->elts; | |
| 928 i = 0; | |
| 929 } | |
| 930 | |
| 931 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
| 932 header[i].lowcase_key, header[i].key.len)) | |
| 933 { | |
| 934 continue; | |
| 935 } | |
| 936 | |
| 937 *b->last++ = 0; | |
| 938 | |
| 939 b->last = ngx_http_v2_write_name(b->last, header[i].key.data, | |
| 940 header[i].key.len, tmp); | |
| 941 | |
| 942 b->last = ngx_http_v2_write_value(b->last, header[i].value.data, | |
| 943 header[i].value.len, tmp); | |
| 944 | |
| 945 #if (NGX_DEBUG) | |
| 946 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 947 ngx_strlow(tmp, header[i].key.data, header[i].key.len); | |
| 948 | |
| 949 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 950 "grpc header: \"%*s: %V\"", | |
| 951 header[i].key.len, tmp, &header[i].value); | |
| 952 } | |
| 953 #endif | |
| 954 } | |
| 955 } | |
| 956 | |
| 957 /* update headers frame length */ | |
| 958 | |
| 959 len = b->last - headers_frame - sizeof(ngx_http_grpc_frame_t); | |
| 960 | |
| 961 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 962 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 963 next = 1; | |
| 964 | |
| 965 } else { | |
| 966 next = 0; | |
| 967 } | |
| 968 | |
| 969 f = (ngx_http_grpc_frame_t *) headers_frame; | |
| 970 | |
| 971 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 972 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 973 f->length_2 = (u_char) (len & 0xff); | |
| 974 | |
| 975 /* create additional continuation frames */ | |
| 976 | |
| 977 p = headers_frame; | |
| 978 | |
| 979 while (next) { | |
| 980 p += sizeof(ngx_http_grpc_frame_t) + NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 981 len = b->last - p; | |
| 982 | |
| 983 ngx_memmove(p + sizeof(ngx_http_grpc_frame_t), p, len); | |
| 984 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 985 | |
| 986 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 987 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
| 988 next = 1; | |
| 989 | |
| 990 } else { | |
| 991 next = 0; | |
| 992 } | |
| 993 | |
| 994 f = (ngx_http_grpc_frame_t *) p; | |
| 995 | |
| 996 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 997 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 998 f->length_2 = (u_char) (len & 0xff); | |
| 999 f->type = NGX_HTTP_V2_CONTINUATION_FRAME; | |
| 1000 f->flags = 0; | |
| 1001 f->stream_id_0 = 0; | |
| 1002 f->stream_id_1 = 0; | |
| 1003 f->stream_id_2 = 0; | |
| 1004 f->stream_id_3 = 1; | |
| 1005 } | |
| 1006 | |
| 1007 f->flags |= NGX_HTTP_V2_END_HEADERS_FLAG; | |
| 1008 | |
| 1009 #if (NGX_DEBUG) | |
| 1010 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1011 u_char buf[512]; | |
| 1012 size_t n, m; | |
| 1013 | |
| 1014 n = ngx_min(b->last - b->pos, 256); | |
| 1015 m = ngx_hex_dump(buf, b->pos, n) - buf; | |
| 1016 | |
| 1017 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1018 "grpc header: %*s%s, len: %uz", | |
| 1019 m, buf, b->last - b->pos > 256 ? "..." : "", | |
| 1020 b->last - b->pos); | |
| 1021 } | |
| 1022 #endif | |
| 1023 | |
| 1024 if (r->request_body_no_buffering) { | |
| 1025 | |
| 1026 u->request_bufs = cl; | |
| 1027 | |
| 1028 } else { | |
| 1029 | |
| 1030 body = u->request_bufs; | |
| 1031 u->request_bufs = cl; | |
| 1032 | |
| 1033 if (body == NULL) { | |
| 1034 f = (ngx_http_grpc_frame_t *) headers_frame; | |
| 1035 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1036 } | |
| 1037 | |
| 1038 while (body) { | |
| 1039 b = ngx_alloc_buf(r->pool); | |
| 1040 if (b == NULL) { | |
| 1041 return NGX_ERROR; | |
| 1042 } | |
| 1043 | |
| 1044 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t)); | |
| 1045 | |
| 1046 cl->next = ngx_alloc_chain_link(r->pool); | |
| 1047 if (cl->next == NULL) { | |
| 1048 return NGX_ERROR; | |
| 1049 } | |
| 1050 | |
| 1051 cl = cl->next; | |
| 1052 cl->buf = b; | |
| 1053 | |
| 1054 body = body->next; | |
| 1055 } | |
| 1056 | |
| 1057 b->last_buf = 1; | |
| 1058 } | |
| 1059 | |
| 1060 u->output.output_filter = ngx_http_grpc_body_output_filter; | |
| 1061 u->output.filter_ctx = r; | |
| 1062 | |
| 1063 b->flush = 1; | |
| 1064 cl->next = NULL; | |
| 1065 | |
| 1066 return NGX_OK; | |
| 1067 } | |
| 1068 | |
| 1069 | |
| 1070 static ngx_int_t | |
| 1071 ngx_http_grpc_reinit_request(ngx_http_request_t *r) | |
| 1072 { | |
| 1073 ngx_http_grpc_ctx_t *ctx; | |
| 1074 | |
| 1075 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
| 1076 | |
| 1077 if (ctx == NULL) { | |
| 1078 return NGX_OK; | |
| 1079 } | |
| 1080 | |
| 1081 ctx->state = 0; | |
| 1082 ctx->header_sent = 0; | |
| 1083 ctx->output_closed = 0; | |
|
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1084 ctx->output_blocked = 0; |
| 7233 | 1085 ctx->parsing_headers = 0; |
| 1086 ctx->end_stream = 0; | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1087 ctx->done = 0; |
| 7233 | 1088 ctx->status = 0; |
| 1089 ctx->connection = NULL; | |
| 1090 | |
| 1091 return NGX_OK; | |
| 1092 } | |
| 1093 | |
| 1094 | |
| 1095 static ngx_int_t | |
| 1096 ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in) | |
| 1097 { | |
| 1098 ngx_http_request_t *r = data; | |
| 1099 | |
| 1100 off_t file_pos; | |
| 1101 u_char *p, *pos, *start; | |
| 1102 size_t len, limit; | |
| 1103 ngx_buf_t *b; | |
| 1104 ngx_int_t rc; | |
| 1105 ngx_uint_t next, last; | |
| 1106 ngx_chain_t *cl, *out, **ll; | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1107 ngx_http_upstream_t *u; |
| 7233 | 1108 ngx_http_grpc_ctx_t *ctx; |
| 1109 ngx_http_grpc_frame_t *f; | |
| 1110 | |
| 1111 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1112 "grpc output filter"); | |
| 1113 | |
| 1114 ctx = ngx_http_grpc_get_ctx(r); | |
| 1115 | |
| 1116 if (ctx == NULL) { | |
| 1117 return NGX_ERROR; | |
| 1118 } | |
| 1119 | |
| 1120 if (in) { | |
| 1121 if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) { | |
| 1122 return NGX_ERROR; | |
| 1123 } | |
| 1124 } | |
| 1125 | |
| 1126 out = NULL; | |
| 1127 ll = &out; | |
| 1128 | |
| 1129 if (!ctx->header_sent) { | |
| 1130 /* first buffer contains headers */ | |
| 1131 | |
| 1132 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1133 "grpc output header"); | |
| 1134 | |
| 1135 ctx->header_sent = 1; | |
| 1136 | |
| 1137 if (ctx->id != 1) { | |
| 1138 /* | |
| 1139 * keepalive connection: skip connection preface, | |
| 1140 * update stream identifiers | |
| 1141 */ | |
| 1142 | |
| 1143 b = ctx->in->buf; | |
| 1144 b->pos += sizeof(ngx_http_grpc_connection_start) - 1; | |
| 1145 | |
| 1146 p = b->pos; | |
| 1147 | |
| 1148 while (p < b->last) { | |
| 1149 f = (ngx_http_grpc_frame_t *) p; | |
| 1150 p += sizeof(ngx_http_grpc_frame_t); | |
| 1151 | |
| 1152 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1153 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1154 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1155 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1156 | |
| 1157 p += (f->length_0 << 16) + (f->length_1 << 8) + f->length_2; | |
| 1158 } | |
| 1159 } | |
| 1160 | |
| 1161 if (ctx->in->buf->last_buf) { | |
| 1162 ctx->output_closed = 1; | |
| 1163 } | |
| 1164 | |
| 1165 *ll = ctx->in; | |
| 1166 ll = &ctx->in->next; | |
| 1167 | |
| 1168 ctx->in = ctx->in->next; | |
| 1169 } | |
| 1170 | |
| 1171 if (ctx->out) { | |
| 1172 /* queued control frames */ | |
| 1173 | |
| 1174 *ll = ctx->out; | |
| 1175 | |
| 1176 for (cl = ctx->out, ll = &cl->next; cl; cl = cl->next) { | |
| 1177 ll = &cl->next; | |
| 1178 } | |
| 1179 | |
| 1180 ctx->out = NULL; | |
| 1181 } | |
| 1182 | |
| 1183 f = NULL; | |
| 1184 last = 0; | |
| 1185 | |
| 1186 limit = ngx_max(0, ctx->send_window); | |
| 1187 | |
| 1188 if (limit > ctx->connection->send_window) { | |
| 1189 limit = ctx->connection->send_window; | |
| 1190 } | |
| 1191 | |
| 1192 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1193 "grpc output limit: %uz w:%z:%uz", | |
| 1194 limit, ctx->send_window, ctx->connection->send_window); | |
| 1195 | |
| 1196 #if (NGX_SUPPRESS_WARN) | |
| 1197 file_pos = 0; | |
| 1198 pos = NULL; | |
| 1199 cl = NULL; | |
| 1200 #endif | |
| 1201 | |
| 1202 in = ctx->in; | |
| 1203 | |
| 1204 while (in && limit > 0) { | |
| 1205 | |
| 1206 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
| 1207 "grpc output in l:%d f:%d %p, pos %p, size: %z " | |
| 1208 "file: %O, size: %O", | |
| 1209 in->buf->last_buf, | |
| 1210 in->buf->in_file, | |
| 1211 in->buf->start, in->buf->pos, | |
| 1212 in->buf->last - in->buf->pos, | |
| 1213 in->buf->file_pos, | |
| 1214 in->buf->file_last - in->buf->file_pos); | |
| 1215 | |
| 1216 if (ngx_buf_special(in->buf)) { | |
| 1217 goto next; | |
| 1218 } | |
| 1219 | |
| 1220 if (in->buf->in_file) { | |
| 1221 file_pos = in->buf->file_pos; | |
| 1222 | |
| 1223 } else { | |
| 1224 pos = in->buf->pos; | |
| 1225 } | |
| 1226 | |
| 1227 next = 0; | |
| 1228 | |
| 1229 do { | |
| 1230 | |
| 1231 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 1232 if (cl == NULL) { | |
| 1233 return NGX_ERROR; | |
| 1234 } | |
| 1235 | |
| 1236 b = cl->buf; | |
| 1237 | |
| 1238 f = (ngx_http_grpc_frame_t *) b->last; | |
| 1239 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1240 | |
| 1241 *ll = cl; | |
| 1242 ll = &cl->next; | |
| 1243 | |
| 1244 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
| 1245 if (cl == NULL) { | |
| 1246 return NGX_ERROR; | |
| 1247 } | |
| 1248 | |
| 1249 b = cl->buf; | |
| 1250 start = b->start; | |
| 1251 | |
| 1252 ngx_memcpy(b, in->buf, sizeof(ngx_buf_t)); | |
| 1253 | |
| 1254 /* | |
| 1255 * restore b->start to preserve memory allocated in the buffer, | |
| 1256 * to reuse it later for headers and control frames | |
| 1257 */ | |
| 1258 | |
| 1259 b->start = start; | |
| 1260 | |
| 1261 if (in->buf->in_file) { | |
| 1262 b->file_pos = file_pos; | |
| 1263 file_pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
| 1264 | |
| 1265 if (file_pos >= in->buf->file_last) { | |
| 1266 file_pos = in->buf->file_last; | |
| 1267 next = 1; | |
| 1268 } | |
| 1269 | |
| 1270 b->file_last = file_pos; | |
| 1271 len = (ngx_uint_t) (file_pos - b->file_pos); | |
| 1272 | |
| 1273 } else { | |
| 1274 b->pos = pos; | |
| 1275 pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
| 1276 | |
| 1277 if (pos >= in->buf->last) { | |
| 1278 pos = in->buf->last; | |
| 1279 next = 1; | |
| 1280 } | |
| 1281 | |
| 1282 b->last = pos; | |
| 1283 len = (ngx_uint_t) (pos - b->pos); | |
| 1284 } | |
| 1285 | |
| 1286 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; | |
| 1287 b->shadow = in->buf; | |
| 1288 b->last_shadow = next; | |
| 1289 | |
| 1290 b->last_buf = 0; | |
| 1291 b->last_in_chain = 0; | |
| 1292 | |
| 1293 *ll = cl; | |
| 1294 ll = &cl->next; | |
| 1295 | |
| 1296 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
| 1297 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
| 1298 f->length_2 = (u_char) (len & 0xff); | |
| 1299 f->type = NGX_HTTP_V2_DATA_FRAME; | |
| 1300 f->flags = 0; | |
| 1301 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1302 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1303 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1304 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1305 | |
| 1306 limit -= len; | |
| 1307 ctx->send_window -= len; | |
| 1308 ctx->connection->send_window -= len; | |
| 1309 | |
| 1310 } while (!next && limit > 0); | |
| 1311 | |
| 1312 if (!next) { | |
| 1313 /* | |
| 1314 * if the buffer wasn't fully sent due to flow control limits, | |
| 1315 * preserve position for future use | |
| 1316 */ | |
| 1317 | |
| 1318 if (in->buf->in_file) { | |
| 1319 in->buf->file_pos = file_pos; | |
| 1320 | |
| 1321 } else { | |
| 1322 in->buf->pos = pos; | |
| 1323 } | |
| 1324 | |
| 1325 break; | |
| 1326 } | |
| 1327 | |
| 1328 next: | |
| 1329 | |
| 1330 if (in->buf->last_buf) { | |
| 1331 last = 1; | |
| 1332 } | |
| 1333 | |
| 1334 in = in->next; | |
| 1335 } | |
| 1336 | |
| 1337 ctx->in = in; | |
| 1338 | |
| 1339 if (last) { | |
| 1340 | |
| 1341 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1342 "grpc output last"); | |
| 1343 | |
| 1344 ctx->output_closed = 1; | |
| 1345 | |
| 1346 if (f) { | |
| 1347 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1348 | |
| 1349 } else { | |
| 1350 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 1351 if (cl == NULL) { | |
| 1352 return NGX_ERROR; | |
| 1353 } | |
| 1354 | |
| 1355 b = cl->buf; | |
| 1356 | |
| 1357 f = (ngx_http_grpc_frame_t *) b->last; | |
| 1358 b->last += sizeof(ngx_http_grpc_frame_t); | |
| 1359 | |
| 1360 f->length_0 = 0; | |
| 1361 f->length_1 = 0; | |
| 1362 f->length_2 = 0; | |
| 1363 f->type = NGX_HTTP_V2_DATA_FRAME; | |
| 1364 f->flags = NGX_HTTP_V2_END_STREAM_FLAG; | |
| 1365 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 1366 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 1367 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 1368 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 1369 | |
| 1370 *ll = cl; | |
| 1371 ll = &cl->next; | |
| 1372 } | |
| 1373 | |
| 1374 cl->buf->last_buf = 1; | |
| 1375 } | |
| 1376 | |
| 1377 *ll = NULL; | |
| 1378 | |
| 1379 #if (NGX_DEBUG) | |
| 1380 | |
| 1381 for (cl = out; cl; cl = cl->next) { | |
| 1382 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
| 1383 "grpc output out l:%d f:%d %p, pos %p, size: %z " | |
| 1384 "file: %O, size: %O", | |
| 1385 cl->buf->last_buf, | |
| 1386 cl->buf->in_file, | |
| 1387 cl->buf->start, cl->buf->pos, | |
| 1388 cl->buf->last - cl->buf->pos, | |
| 1389 cl->buf->file_pos, | |
| 1390 cl->buf->file_last - cl->buf->file_pos); | |
| 1391 } | |
| 1392 | |
| 1393 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1394 "grpc output limit: %uz w:%z:%uz", | |
| 1395 limit, ctx->send_window, ctx->connection->send_window); | |
| 1396 | |
| 1397 #endif | |
| 1398 | |
| 1399 rc = ngx_chain_writer(&r->upstream->writer, out); | |
| 1400 | |
| 1401 ngx_chain_update_chains(r->pool, &ctx->free, &ctx->busy, &out, | |
| 1402 (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter); | |
| 1403 | |
| 1404 for (cl = ctx->free; cl; cl = cl->next) { | |
| 1405 | |
| 1406 /* mark original buffers as sent */ | |
| 1407 | |
| 1408 if (cl->buf->shadow) { | |
| 1409 if (cl->buf->last_shadow) { | |
| 1410 b = cl->buf->shadow; | |
| 1411 b->pos = b->last; | |
| 1412 } | |
| 1413 | |
| 1414 cl->buf->shadow = NULL; | |
| 1415 } | |
| 1416 } | |
| 1417 | |
| 1418 if (rc == NGX_OK && ctx->in) { | |
| 1419 rc = NGX_AGAIN; | |
| 1420 } | |
| 1421 | |
|
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1422 if (rc == NGX_AGAIN) { |
|
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1423 ctx->output_blocked = 1; |
|
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1424 |
|
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1425 } else { |
|
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1426 ctx->output_blocked = 0; |
|
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1427 } |
|
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1428 |
|
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1429 if (ctx->done) { |
|
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1430 |
|
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1431 /* |
|
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1432 * We have already got the response and were sending some additional |
|
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1433 * control frames. Even if there is still something unsent, stop |
|
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1434 * here anyway. |
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1435 */ |
|
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1436 |
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1437 u = r->upstream; |
|
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1438 u->length = 0; |
|
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1439 |
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1440 if (ctx->in == NULL |
|
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1441 && ctx->out == NULL |
|
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1442 && ctx->output_closed |
|
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1443 && !ctx->output_blocked |
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1444 && ctx->state == ngx_http_grpc_st_start) |
|
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1445 { |
|
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1446 u->keepalive = 1; |
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1447 } |
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1448 |
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1449 ngx_post_event(u->peer.connection->read, &ngx_posted_events); |
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1450 } |
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1451 |
| 7233 | 1452 return rc; |
| 1453 } | |
| 1454 | |
| 1455 | |
| 1456 static ngx_int_t | |
| 1457 ngx_http_grpc_process_header(ngx_http_request_t *r) | |
| 1458 { | |
| 1459 ngx_str_t *status_line; | |
| 1460 ngx_int_t rc, status; | |
| 1461 ngx_buf_t *b; | |
| 1462 ngx_table_elt_t *h; | |
| 1463 ngx_http_upstream_t *u; | |
| 1464 ngx_http_grpc_ctx_t *ctx; | |
| 1465 ngx_http_upstream_header_t *hh; | |
| 1466 ngx_http_upstream_main_conf_t *umcf; | |
| 1467 | |
| 1468 u = r->upstream; | |
| 1469 b = &u->buffer; | |
| 1470 | |
| 1471 #if (NGX_DEBUG) | |
| 1472 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
| 1473 u_char buf[512]; | |
| 1474 size_t n, m; | |
| 1475 | |
| 1476 n = ngx_min(b->last - b->pos, 256); | |
| 1477 m = ngx_hex_dump(buf, b->pos, n) - buf; | |
| 1478 | |
| 1479 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1480 "grpc response: %*s%s, len: %uz", | |
| 1481 m, buf, b->last - b->pos > 256 ? "..." : "", | |
| 1482 b->last - b->pos); | |
| 1483 } | |
| 1484 #endif | |
| 1485 | |
| 1486 ctx = ngx_http_grpc_get_ctx(r); | |
| 1487 | |
| 1488 if (ctx == NULL) { | |
| 1489 return NGX_ERROR; | |
| 1490 } | |
| 1491 | |
| 1492 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); | |
| 1493 | |
| 1494 for ( ;; ) { | |
| 1495 | |
| 1496 if (ctx->state < ngx_http_grpc_st_payload) { | |
| 1497 | |
| 1498 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
| 1499 | |
| 1500 if (rc == NGX_AGAIN) { | |
| 1501 | |
| 1502 /* | |
| 1503 * there can be a lot of window update frames, | |
| 1504 * so we reset buffer if it is empty and we haven't | |
| 1505 * started parsing headers yet | |
| 1506 */ | |
| 1507 | |
| 1508 if (!ctx->parsing_headers) { | |
| 1509 b->pos = b->start; | |
| 1510 b->last = b->pos; | |
| 1511 } | |
| 1512 | |
| 1513 return NGX_AGAIN; | |
| 1514 } | |
| 1515 | |
| 1516 if (rc == NGX_ERROR) { | |
| 1517 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1518 } | |
| 1519 | |
| 1520 /* | |
| 1521 * RFC 7540 says that implementations MUST discard frames | |
| 1522 * that have unknown or unsupported types. However, extension | |
| 1523 * frames that appear in the middle of a header block are | |
| 1524 * not permitted. Also, for obvious reasons CONTINUATION frames | |
| 1525 * cannot appear before headers, and DATA frames are not expected | |
| 1526 * to appear before all headers are parsed. | |
| 1527 */ | |
| 1528 | |
| 1529 if (ctx->type == NGX_HTTP_V2_DATA_FRAME | |
| 1530 || (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
| 1531 && !ctx->parsing_headers) | |
| 1532 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
| 1533 && ctx->parsing_headers)) | |
| 1534 { | |
| 1535 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1536 "upstream sent unexpected http2 frame: %d", | |
| 1537 ctx->type); | |
| 1538 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1539 } | |
| 1540 | |
| 1541 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
| 1542 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1543 "upstream sent frame for unknown stream %ui", | |
| 1544 ctx->stream_id); | |
| 1545 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1546 } | |
| 1547 } | |
| 1548 | |
| 1549 /* frame payload */ | |
| 1550 | |
| 1551 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
| 1552 | |
| 1553 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
| 1554 | |
| 1555 if (rc == NGX_AGAIN) { | |
| 1556 return NGX_AGAIN; | |
| 1557 } | |
| 1558 | |
| 1559 if (rc == NGX_ERROR) { | |
| 1560 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1561 } | |
| 1562 | |
| 1563 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1564 "upstream rejected request with error %ui", | |
| 1565 ctx->error); | |
| 1566 | |
| 1567 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1568 } | |
| 1569 | |
| 1570 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
| 1571 | |
| 1572 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
| 1573 | |
| 1574 if (rc == NGX_AGAIN) { | |
| 1575 return NGX_AGAIN; | |
| 1576 } | |
| 1577 | |
| 1578 if (rc == NGX_ERROR) { | |
| 1579 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1580 } | |
| 1581 | |
| 1582 /* | |
| 1583 * If stream_id is lower than one we use, our | |
| 1584 * request won't be processed and needs to be retried. | |
| 1585 * If stream_id is greater or equal to the one we use, | |
| 1586 * we can continue normally (except we can't use this | |
| 1587 * connection for additional requests). If there is | |
| 1588 * a real error, the connection will be closed. | |
| 1589 */ | |
| 1590 | |
| 1591 if (ctx->stream_id < ctx->id) { | |
| 1592 | |
| 1593 /* TODO: we can retry non-idempotent requests */ | |
| 1594 | |
| 1595 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1596 "upstream sent goaway with error %ui", | |
| 1597 ctx->error); | |
| 1598 | |
| 1599 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1600 } | |
| 1601 | |
| 1602 continue; | |
| 1603 } | |
| 1604 | |
| 1605 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
| 1606 | |
| 1607 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
| 1608 | |
| 1609 if (rc == NGX_AGAIN) { | |
| 1610 return NGX_AGAIN; | |
| 1611 } | |
| 1612 | |
| 1613 if (rc == NGX_ERROR) { | |
| 1614 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1615 } | |
| 1616 | |
| 1617 if (ctx->in) { | |
| 1618 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1619 } | |
| 1620 | |
| 1621 continue; | |
| 1622 } | |
| 1623 | |
| 1624 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
| 1625 | |
| 1626 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
| 1627 | |
| 1628 if (rc == NGX_AGAIN) { | |
| 1629 return NGX_AGAIN; | |
| 1630 } | |
| 1631 | |
| 1632 if (rc == NGX_ERROR) { | |
| 1633 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1634 } | |
| 1635 | |
| 1636 if (ctx->in) { | |
| 1637 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1638 } | |
| 1639 | |
| 1640 continue; | |
| 1641 } | |
| 1642 | |
| 1643 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
| 1644 | |
| 1645 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
| 1646 | |
| 1647 if (rc == NGX_AGAIN) { | |
| 1648 return NGX_AGAIN; | |
| 1649 } | |
| 1650 | |
| 1651 if (rc == NGX_ERROR) { | |
| 1652 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1653 } | |
| 1654 | |
| 1655 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 1656 continue; | |
| 1657 } | |
| 1658 | |
| 1659 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
| 1660 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1661 "upstream sent unexpected push promise frame"); | |
| 1662 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1663 } | |
| 1664 | |
| 1665 if (ctx->type != NGX_HTTP_V2_HEADERS_FRAME | |
| 1666 && ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME) | |
| 1667 { | |
| 1668 /* priority, unknown frames */ | |
| 1669 | |
| 1670 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 1671 ctx->rest -= b->last - b->pos; | |
| 1672 b->pos = b->last; | |
| 1673 return NGX_AGAIN; | |
| 1674 } | |
| 1675 | |
| 1676 b->pos += ctx->rest; | |
| 1677 ctx->rest = 0; | |
| 1678 ctx->state = ngx_http_grpc_st_start; | |
| 1679 | |
| 1680 continue; | |
| 1681 } | |
| 1682 | |
| 1683 /* headers */ | |
| 1684 | |
| 1685 for ( ;; ) { | |
| 1686 | |
| 1687 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
| 1688 | |
| 1689 if (rc == NGX_AGAIN) { | |
| 1690 break; | |
| 1691 } | |
| 1692 | |
| 1693 if (rc == NGX_OK) { | |
| 1694 | |
| 1695 /* a header line has been parsed successfully */ | |
| 1696 | |
| 1697 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1698 "grpc header: \"%V: %V\"", | |
| 1699 &ctx->name, &ctx->value); | |
| 1700 | |
| 1701 if (ctx->name.len && ctx->name.data[0] == ':') { | |
| 1702 | |
| 1703 if (ctx->name.len != sizeof(":status") - 1 | |
| 1704 || ngx_strncmp(ctx->name.data, ":status", | |
| 1705 sizeof(":status") - 1) | |
| 1706 != 0) | |
| 1707 { | |
| 1708 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1709 "upstream sent invalid header \"%V: %V\"", | |
| 1710 &ctx->name, &ctx->value); | |
| 1711 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1712 } | |
| 1713 | |
| 1714 if (ctx->status) { | |
| 1715 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1716 "upstream sent duplicate :status header"); | |
| 1717 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1718 } | |
| 1719 | |
| 1720 status_line = &ctx->value; | |
| 1721 | |
| 1722 if (status_line->len != 3) { | |
| 1723 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1724 "upstream sent invalid :status \"%V\"", | |
| 1725 status_line); | |
| 1726 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1727 } | |
| 1728 | |
| 1729 status = ngx_atoi(status_line->data, 3); | |
| 1730 | |
| 1731 if (status == NGX_ERROR) { | |
| 1732 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1733 "upstream sent invalid :status \"%V\"", | |
| 1734 status_line); | |
| 1735 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1736 } | |
| 1737 | |
| 1738 if (status < NGX_HTTP_OK) { | |
| 1739 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1740 "upstream sent unexpected :status \"%V\"", | |
| 1741 status_line); | |
| 1742 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1743 } | |
| 1744 | |
| 1745 u->headers_in.status_n = status; | |
| 1746 | |
| 1747 if (u->state && u->state->status == 0) { | |
| 1748 u->state->status = status; | |
| 1749 } | |
| 1750 | |
| 1751 ctx->status = 1; | |
| 1752 | |
| 1753 continue; | |
| 1754 | |
| 1755 } else if (!ctx->status) { | |
| 1756 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1757 "upstream sent no :status header"); | |
| 1758 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1759 } | |
| 1760 | |
| 1761 h = ngx_list_push(&u->headers_in.headers); | |
| 1762 if (h == NULL) { | |
| 1763 return NGX_ERROR; | |
| 1764 } | |
| 1765 | |
| 1766 h->key = ctx->name; | |
| 1767 h->value = ctx->value; | |
| 1768 h->lowcase_key = h->key.data; | |
| 1769 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
| 1770 | |
| 1771 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash, | |
| 1772 h->lowcase_key, h->key.len); | |
| 1773 | |
| 1774 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) { | |
| 1775 return NGX_ERROR; | |
| 1776 } | |
| 1777 | |
| 1778 continue; | |
| 1779 } | |
| 1780 | |
| 1781 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
| 1782 | |
| 1783 /* a whole header has been parsed successfully */ | |
| 1784 | |
| 1785 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1786 "grpc header done"); | |
| 1787 | |
|
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1788 if (ctx->end_stream) { |
|
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1789 u->headers_in.content_length_n = 0; |
|
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1790 |
|
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|
1791 if (ctx->in == NULL |
|
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|
1792 && ctx->out == NULL |
|
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1793 && ctx->output_closed |
|
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1794 && !ctx->output_blocked |
|
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|
1795 && b->last == b->pos) |
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1796 { |
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1797 u->keepalive = 1; |
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1798 } |
| 7233 | 1799 } |
| 1800 | |
| 1801 return NGX_OK; | |
| 1802 } | |
| 1803 | |
| 1804 /* there was error while a header line parsing */ | |
| 1805 | |
| 1806 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1807 "upstream sent invalid header"); | |
| 1808 | |
| 1809 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
| 1810 } | |
| 1811 | |
| 1812 /* rc == NGX_AGAIN */ | |
| 1813 | |
| 1814 if (ctx->rest == 0) { | |
| 1815 ctx->state = ngx_http_grpc_st_start; | |
| 1816 continue; | |
| 1817 } | |
| 1818 | |
| 1819 return NGX_AGAIN; | |
| 1820 } | |
| 1821 } | |
| 1822 | |
| 1823 | |
| 1824 static ngx_int_t | |
| 1825 ngx_http_grpc_filter_init(void *data) | |
| 1826 { | |
| 1827 ngx_http_grpc_ctx_t *ctx = data; | |
| 1828 | |
| 1829 ngx_http_request_t *r; | |
| 1830 ngx_http_upstream_t *u; | |
| 1831 | |
| 1832 r = ctx->request; | |
| 1833 u = r->upstream; | |
| 1834 | |
| 1835 u->length = 1; | |
| 1836 | |
| 1837 if (ctx->end_stream) { | |
| 1838 u->length = 0; | |
| 1839 } | |
| 1840 | |
| 1841 return NGX_OK; | |
| 1842 } | |
| 1843 | |
| 1844 | |
| 1845 static ngx_int_t | |
| 1846 ngx_http_grpc_filter(void *data, ssize_t bytes) | |
| 1847 { | |
| 1848 ngx_http_grpc_ctx_t *ctx = data; | |
| 1849 | |
| 1850 ngx_int_t rc; | |
| 1851 ngx_buf_t *b, *buf; | |
| 1852 ngx_chain_t *cl, **ll; | |
| 1853 ngx_table_elt_t *h; | |
| 1854 ngx_http_request_t *r; | |
| 1855 ngx_http_upstream_t *u; | |
| 1856 | |
| 1857 r = ctx->request; | |
| 1858 u = r->upstream; | |
| 1859 b = &u->buffer; | |
| 1860 | |
| 1861 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 1862 "grpc filter bytes:%z", bytes); | |
| 1863 | |
| 1864 b->pos = b->last; | |
| 1865 b->last += bytes; | |
| 1866 | |
| 1867 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
| 1868 ll = &cl->next; | |
| 1869 } | |
| 1870 | |
| 1871 for ( ;; ) { | |
| 1872 | |
| 1873 if (ctx->state < ngx_http_grpc_st_payload) { | |
| 1874 | |
| 1875 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
| 1876 | |
| 1877 if (rc == NGX_AGAIN) { | |
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1878 |
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1879 if (ctx->done) { |
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1880 |
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1881 /* |
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1882 * We have finished parsing the response and the |
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1883 * remaining control frames. If there are unsent |
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1884 * control frames, post a write event to send them. |
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1885 */ |
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1886 |
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1887 if (ctx->out) { |
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1888 ngx_post_event(u->peer.connection->write, |
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1889 &ngx_posted_events); |
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1890 return NGX_AGAIN; |
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1891 } |
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1892 |
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1893 u->length = 0; |
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1894 |
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1895 if (ctx->in == NULL |
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1896 && ctx->output_closed |
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1897 && !ctx->output_blocked |
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1898 && ctx->state == ngx_http_grpc_st_start) |
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1899 { |
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1900 u->keepalive = 1; |
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1901 } |
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1902 |
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1903 break; |
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1904 } |
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1905 |
| 7233 | 1906 return NGX_AGAIN; |
| 1907 } | |
| 1908 | |
| 1909 if (rc == NGX_ERROR) { | |
| 1910 return NGX_ERROR; | |
| 1911 } | |
| 1912 | |
| 1913 if ((ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
| 1914 && !ctx->parsing_headers) | |
| 1915 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
| 1916 && ctx->parsing_headers)) | |
| 1917 { | |
| 1918 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1919 "upstream sent unexpected http2 frame: %d", | |
| 1920 ctx->type); | |
| 1921 return NGX_ERROR; | |
| 1922 } | |
| 1923 | |
| 1924 if (ctx->type == NGX_HTTP_V2_DATA_FRAME) { | |
| 1925 | |
| 1926 if (ctx->stream_id != ctx->id) { | |
| 1927 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1928 "upstream sent data frame " | |
| 1929 "for unknown stream %ui", | |
| 1930 ctx->stream_id); | |
| 1931 return NGX_ERROR; | |
| 1932 } | |
| 1933 | |
| 1934 if (ctx->rest > ctx->recv_window) { | |
| 1935 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1936 "upstream violated stream flow control, " | |
| 1937 "received %uz data frame with window %uz", | |
| 1938 ctx->rest, ctx->recv_window); | |
| 1939 return NGX_ERROR; | |
| 1940 } | |
| 1941 | |
| 1942 if (ctx->rest > ctx->connection->recv_window) { | |
| 1943 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1944 "upstream violated connection flow control, " | |
| 1945 "received %uz data frame with window %uz", | |
| 1946 ctx->rest, ctx->connection->recv_window); | |
| 1947 return NGX_ERROR; | |
| 1948 } | |
| 1949 | |
| 1950 ctx->recv_window -= ctx->rest; | |
| 1951 ctx->connection->recv_window -= ctx->rest; | |
| 1952 | |
| 1953 if (ctx->connection->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4 | |
| 1954 || ctx->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4) | |
| 1955 { | |
| 1956 if (ngx_http_grpc_send_window_update(r, ctx) != NGX_OK) { | |
| 1957 return NGX_ERROR; | |
| 1958 } | |
| 1959 | |
| 1960 ngx_post_event(u->peer.connection->write, | |
| 1961 &ngx_posted_events); | |
| 1962 } | |
| 1963 } | |
| 1964 | |
| 1965 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
| 1966 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1967 "upstream sent frame for unknown stream %ui", | |
| 1968 ctx->stream_id); | |
| 1969 return NGX_ERROR; | |
| 1970 } | |
| 1971 | |
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1972 if (ctx->stream_id && ctx->done) { |
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1973 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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1974 "upstream sent frame for closed stream %ui", |
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1975 ctx->stream_id); |
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1976 return NGX_ERROR; |
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1977 } |
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1978 |
| 7233 | 1979 ctx->padding = 0; |
| 1980 } | |
| 1981 | |
| 1982 if (ctx->state == ngx_http_grpc_st_padding) { | |
| 1983 | |
| 1984 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 1985 ctx->rest -= b->last - b->pos; | |
| 1986 b->pos = b->last; | |
| 1987 return NGX_AGAIN; | |
| 1988 } | |
| 1989 | |
| 1990 b->pos += ctx->rest; | |
| 1991 ctx->rest = 0; | |
| 1992 ctx->state = ngx_http_grpc_st_start; | |
| 1993 | |
| 1994 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
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1995 ctx->done = 1; |
| 7233 | 1996 } |
| 1997 | |
| 1998 continue; | |
| 1999 } | |
| 2000 | |
| 2001 /* frame payload */ | |
| 2002 | |
| 2003 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
| 2004 | |
| 2005 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
| 2006 | |
| 2007 if (rc == NGX_AGAIN) { | |
| 2008 return NGX_AGAIN; | |
| 2009 } | |
| 2010 | |
| 2011 if (rc == NGX_ERROR) { | |
| 2012 return NGX_ERROR; | |
| 2013 } | |
| 2014 | |
| 2015 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2016 "upstream rejected request with error %ui", | |
| 2017 ctx->error); | |
| 2018 | |
| 2019 return NGX_ERROR; | |
| 2020 } | |
| 2021 | |
| 2022 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
| 2023 | |
| 2024 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
| 2025 | |
| 2026 if (rc == NGX_AGAIN) { | |
| 2027 return NGX_AGAIN; | |
| 2028 } | |
| 2029 | |
| 2030 if (rc == NGX_ERROR) { | |
| 2031 return NGX_ERROR; | |
| 2032 } | |
| 2033 | |
| 2034 /* | |
| 2035 * If stream_id is lower than one we use, our | |
| 2036 * request won't be processed and needs to be retried. | |
| 2037 * If stream_id is greater or equal to the one we use, | |
| 2038 * we can continue normally (except we can't use this | |
| 2039 * connection for additional requests). If there is | |
| 2040 * a real error, the connection will be closed. | |
| 2041 */ | |
| 2042 | |
| 2043 if (ctx->stream_id < ctx->id) { | |
| 2044 | |
| 2045 /* TODO: we can retry non-idempotent requests */ | |
| 2046 | |
| 2047 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2048 "upstream sent goaway with error %ui", | |
| 2049 ctx->error); | |
| 2050 | |
| 2051 return NGX_ERROR; | |
| 2052 } | |
| 2053 | |
| 2054 continue; | |
| 2055 } | |
| 2056 | |
| 2057 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
| 2058 | |
| 2059 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
| 2060 | |
| 2061 if (rc == NGX_AGAIN) { | |
| 2062 return NGX_AGAIN; | |
| 2063 } | |
| 2064 | |
| 2065 if (rc == NGX_ERROR) { | |
| 2066 return NGX_ERROR; | |
| 2067 } | |
| 2068 | |
| 2069 if (ctx->in) { | |
| 2070 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2071 } | |
| 2072 | |
| 2073 continue; | |
| 2074 } | |
| 2075 | |
| 2076 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
| 2077 | |
| 2078 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
| 2079 | |
| 2080 if (rc == NGX_AGAIN) { | |
| 2081 return NGX_AGAIN; | |
| 2082 } | |
| 2083 | |
| 2084 if (rc == NGX_ERROR) { | |
| 2085 return NGX_ERROR; | |
| 2086 } | |
| 2087 | |
| 2088 if (ctx->in) { | |
| 2089 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2090 } | |
| 2091 | |
| 2092 continue; | |
| 2093 } | |
| 2094 | |
| 2095 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
| 2096 | |
| 2097 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
| 2098 | |
| 2099 if (rc == NGX_AGAIN) { | |
| 2100 return NGX_AGAIN; | |
| 2101 } | |
| 2102 | |
| 2103 if (rc == NGX_ERROR) { | |
| 2104 return NGX_ERROR; | |
| 2105 } | |
| 2106 | |
| 2107 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
| 2108 continue; | |
| 2109 } | |
| 2110 | |
| 2111 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
| 2112 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2113 "upstream sent unexpected push promise frame"); | |
| 2114 return NGX_ERROR; | |
| 2115 } | |
| 2116 | |
| 2117 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME | |
| 2118 || ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) | |
| 2119 { | |
| 2120 for ( ;; ) { | |
| 2121 | |
| 2122 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
| 2123 | |
| 2124 if (rc == NGX_AGAIN) { | |
| 2125 break; | |
| 2126 } | |
| 2127 | |
| 2128 if (rc == NGX_OK) { | |
| 2129 | |
| 2130 /* a header line has been parsed successfully */ | |
| 2131 | |
| 2132 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2133 "grpc trailer: \"%V: %V\"", | |
| 2134 &ctx->name, &ctx->value); | |
| 2135 | |
| 2136 if (ctx->name.len && ctx->name.data[0] == ':') { | |
| 2137 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2138 "upstream sent invalid " | |
| 2139 "trailer \"%V: %V\"", | |
| 2140 &ctx->name, &ctx->value); | |
| 2141 return NGX_ERROR; | |
| 2142 } | |
| 2143 | |
| 2144 h = ngx_list_push(&u->headers_in.trailers); | |
| 2145 if (h == NULL) { | |
| 2146 return NGX_ERROR; | |
| 2147 } | |
| 2148 | |
| 2149 h->key = ctx->name; | |
| 2150 h->value = ctx->value; | |
| 2151 h->lowcase_key = h->key.data; | |
| 2152 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
| 2153 | |
| 2154 continue; | |
| 2155 } | |
| 2156 | |
| 2157 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
| 2158 | |
| 2159 /* a whole header has been parsed successfully */ | |
| 2160 | |
| 2161 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2162 "grpc trailer done"); | |
| 2163 | |
| 2164 if (ctx->end_stream) { | |
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2165 ctx->done = 1; |
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2166 break; |
| 7233 | 2167 } |
| 2168 | |
| 2169 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2170 "upstream sent trailer without " | |
| 2171 "end stream flag"); | |
| 2172 return NGX_ERROR; | |
| 2173 } | |
| 2174 | |
| 2175 /* there was error while a header line parsing */ | |
| 2176 | |
| 2177 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2178 "upstream sent invalid trailer"); | |
| 2179 | |
| 2180 return NGX_ERROR; | |
| 2181 } | |
| 2182 | |
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2183 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { |
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2184 continue; |
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2185 } |
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2186 |
| 7233 | 2187 /* rc == NGX_AGAIN */ |
| 2188 | |
| 2189 if (ctx->rest == 0) { | |
| 2190 ctx->state = ngx_http_grpc_st_start; | |
| 2191 continue; | |
| 2192 } | |
| 2193 | |
| 2194 return NGX_AGAIN; | |
| 2195 } | |
| 2196 | |
| 2197 if (ctx->type != NGX_HTTP_V2_DATA_FRAME) { | |
| 2198 | |
| 2199 /* priority, unknown frames */ | |
| 2200 | |
| 2201 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2202 ctx->rest -= b->last - b->pos; | |
| 2203 b->pos = b->last; | |
| 2204 return NGX_AGAIN; | |
| 2205 } | |
| 2206 | |
| 2207 b->pos += ctx->rest; | |
| 2208 ctx->rest = 0; | |
| 2209 ctx->state = ngx_http_grpc_st_start; | |
| 2210 | |
| 2211 continue; | |
| 2212 } | |
| 2213 | |
| 2214 /* | |
| 2215 * data frame: | |
| 2216 * | |
| 2217 * +---------------+ | |
| 2218 * |Pad Length? (8)| | |
| 2219 * +---------------+-----------------------------------------------+ | |
| 2220 * | Data (*) ... | |
| 2221 * +---------------------------------------------------------------+ | |
| 2222 * | Padding (*) ... | |
| 2223 * +---------------------------------------------------------------+ | |
| 2224 */ | |
| 2225 | |
| 2226 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
| 2227 | |
| 2228 if (ctx->rest == 0) { | |
| 2229 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2230 "upstream sent too short http2 frame"); | |
| 2231 return NGX_ERROR; | |
| 2232 } | |
| 2233 | |
| 2234 if (b->pos == b->last) { | |
| 2235 return NGX_AGAIN; | |
| 2236 } | |
| 2237 | |
| 2238 ctx->flags &= ~NGX_HTTP_V2_PADDED_FLAG; | |
| 2239 ctx->padding = *b->pos++; | |
| 2240 ctx->rest -= 1; | |
| 2241 | |
| 2242 if (ctx->padding > ctx->rest) { | |
| 2243 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2244 "upstream sent http2 frame with too long " | |
| 2245 "padding: %d in frame %uz", | |
| 2246 ctx->padding, ctx->rest); | |
| 2247 return NGX_ERROR; | |
| 2248 } | |
| 2249 | |
| 2250 continue; | |
| 2251 } | |
| 2252 | |
| 2253 if (ctx->rest == ctx->padding) { | |
| 2254 goto done; | |
| 2255 } | |
| 2256 | |
| 2257 if (b->pos == b->last) { | |
| 2258 return NGX_AGAIN; | |
| 2259 } | |
| 2260 | |
| 2261 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
| 2262 if (cl == NULL) { | |
| 2263 return NGX_ERROR; | |
| 2264 } | |
| 2265 | |
| 2266 *ll = cl; | |
| 2267 ll = &cl->next; | |
| 2268 | |
| 2269 buf = cl->buf; | |
| 2270 | |
| 2271 buf->flush = 1; | |
| 2272 buf->memory = 1; | |
| 2273 | |
| 2274 buf->pos = b->pos; | |
| 2275 buf->tag = u->output.tag; | |
| 2276 | |
| 2277 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2278 "grpc output buf %p", buf->pos); | |
| 2279 | |
| 2280 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
| 2281 | |
| 2282 ctx->rest -= b->last - b->pos; | |
| 2283 b->pos = b->last; | |
| 2284 buf->last = b->pos; | |
| 2285 | |
| 2286 return NGX_AGAIN; | |
| 2287 } | |
| 2288 | |
| 2289 b->pos += ctx->rest - ctx->padding; | |
| 2290 buf->last = b->pos; | |
| 2291 ctx->rest = ctx->padding; | |
| 2292 | |
| 2293 done: | |
| 2294 | |
| 2295 if (ctx->padding) { | |
| 2296 ctx->state = ngx_http_grpc_st_padding; | |
| 2297 continue; | |
| 2298 } | |
| 2299 | |
| 2300 ctx->state = ngx_http_grpc_st_start; | |
| 2301 | |
| 2302 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
|
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2303 ctx->done = 1; |
| 7233 | 2304 } |
| 2305 } | |
| 2306 | |
| 2307 return NGX_OK; | |
| 2308 } | |
| 2309 | |
| 2310 | |
| 2311 static ngx_int_t | |
| 2312 ngx_http_grpc_parse_frame(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2313 ngx_buf_t *b) | |
| 2314 { | |
| 2315 u_char ch, *p; | |
| 2316 ngx_http_grpc_state_e state; | |
| 2317 | |
| 2318 state = ctx->state; | |
| 2319 | |
| 2320 for (p = b->pos; p < b->last; p++) { | |
| 2321 ch = *p; | |
| 2322 | |
| 2323 #if 0 | |
| 2324 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2325 "grpc frame byte: %02Xd, s:%d", ch, state); | |
| 2326 #endif | |
| 2327 | |
| 2328 switch (state) { | |
| 2329 | |
| 2330 case ngx_http_grpc_st_start: | |
| 2331 ctx->rest = ch << 16; | |
| 2332 state = ngx_http_grpc_st_length_2; | |
| 2333 break; | |
| 2334 | |
| 2335 case ngx_http_grpc_st_length_2: | |
| 2336 ctx->rest |= ch << 8; | |
| 2337 state = ngx_http_grpc_st_length_3; | |
| 2338 break; | |
| 2339 | |
| 2340 case ngx_http_grpc_st_length_3: | |
| 2341 ctx->rest |= ch; | |
| 2342 | |
| 2343 if (ctx->rest > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
| 2344 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2345 "upstream sent too large http2 frame: %uz", | |
| 2346 ctx->rest); | |
| 2347 return NGX_ERROR; | |
| 2348 } | |
| 2349 | |
| 2350 state = ngx_http_grpc_st_type; | |
| 2351 break; | |
| 2352 | |
| 2353 case ngx_http_grpc_st_type: | |
| 2354 ctx->type = ch; | |
| 2355 state = ngx_http_grpc_st_flags; | |
| 2356 break; | |
| 2357 | |
| 2358 case ngx_http_grpc_st_flags: | |
| 2359 ctx->flags = ch; | |
| 2360 state = ngx_http_grpc_st_stream_id; | |
| 2361 break; | |
| 2362 | |
| 2363 case ngx_http_grpc_st_stream_id: | |
| 2364 ctx->stream_id = (ch & 0x7f) << 24; | |
| 2365 state = ngx_http_grpc_st_stream_id_2; | |
| 2366 break; | |
| 2367 | |
| 2368 case ngx_http_grpc_st_stream_id_2: | |
| 2369 ctx->stream_id |= ch << 16; | |
| 2370 state = ngx_http_grpc_st_stream_id_3; | |
| 2371 break; | |
| 2372 | |
| 2373 case ngx_http_grpc_st_stream_id_3: | |
| 2374 ctx->stream_id |= ch << 8; | |
| 2375 state = ngx_http_grpc_st_stream_id_4; | |
| 2376 break; | |
| 2377 | |
| 2378 case ngx_http_grpc_st_stream_id_4: | |
| 2379 ctx->stream_id |= ch; | |
| 2380 | |
| 2381 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2382 "grpc frame: %d, len: %uz, f:%d, i:%ui", | |
| 2383 ctx->type, ctx->rest, ctx->flags, ctx->stream_id); | |
| 2384 | |
| 2385 b->pos = p + 1; | |
| 2386 | |
| 2387 ctx->state = ngx_http_grpc_st_payload; | |
| 2388 ctx->frame_state = 0; | |
| 2389 | |
| 2390 return NGX_OK; | |
| 2391 | |
| 2392 /* suppress warning */ | |
| 2393 case ngx_http_grpc_st_payload: | |
| 2394 case ngx_http_grpc_st_padding: | |
| 2395 break; | |
| 2396 } | |
| 2397 } | |
| 2398 | |
| 2399 b->pos = p; | |
| 2400 ctx->state = state; | |
| 2401 | |
| 2402 return NGX_AGAIN; | |
| 2403 } | |
| 2404 | |
| 2405 | |
| 2406 static ngx_int_t | |
| 2407 ngx_http_grpc_parse_header(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2408 ngx_buf_t *b) | |
| 2409 { | |
| 2410 u_char ch, *p, *last; | |
| 2411 size_t min; | |
| 2412 ngx_int_t rc; | |
| 2413 enum { | |
| 2414 sw_start = 0, | |
| 2415 sw_padding_length, | |
| 2416 sw_dependency, | |
| 2417 sw_dependency_2, | |
| 2418 sw_dependency_3, | |
| 2419 sw_dependency_4, | |
| 2420 sw_weight, | |
| 2421 sw_fragment, | |
| 2422 sw_padding | |
| 2423 } state; | |
| 2424 | |
| 2425 state = ctx->frame_state; | |
| 2426 | |
| 2427 if (state == sw_start) { | |
| 2428 | |
| 2429 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2430 "grpc parse header: start"); | |
| 2431 | |
| 2432 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME) { | |
| 2433 ctx->parsing_headers = 1; | |
| 2434 ctx->fragment_state = 0; | |
| 2435 | |
| 2436 min = (ctx->flags & NGX_HTTP_V2_PADDED_FLAG ? 1 : 0) | |
| 2437 + (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG ? 5 : 0); | |
| 2438 | |
| 2439 if (ctx->rest < min) { | |
| 2440 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2441 "upstream sent headers frame " | |
| 2442 "with invalid length: %uz", | |
| 2443 ctx->rest); | |
| 2444 return NGX_ERROR; | |
| 2445 } | |
| 2446 | |
| 2447 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
| 2448 ctx->end_stream = 1; | |
| 2449 } | |
| 2450 | |
| 2451 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
| 2452 state = sw_padding_length; | |
| 2453 | |
| 2454 } else if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
| 2455 state = sw_dependency; | |
| 2456 | |
| 2457 } else { | |
| 2458 state = sw_fragment; | |
| 2459 } | |
| 2460 | |
| 2461 } else if (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) { | |
| 2462 state = sw_fragment; | |
| 2463 } | |
| 2464 | |
| 2465 ctx->padding = 0; | |
|
7242
25a4353633a0
gRPC: fixed missing state save in frame header parsing.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7240
diff
changeset
|
2466 ctx->frame_state = state; |
| 7233 | 2467 } |
| 2468 | |
| 2469 if (state < sw_fragment) { | |
| 2470 | |
| 2471 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2472 last = b->last; | |
| 2473 | |
| 2474 } else { | |
| 2475 last = b->pos + ctx->rest; | |
| 2476 } | |
| 2477 | |
| 2478 for (p = b->pos; p < last; p++) { | |
| 2479 ch = *p; | |
| 2480 | |
| 2481 #if 0 | |
| 2482 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2483 "grpc header byte: %02Xd s:%d", ch, state); | |
| 2484 #endif | |
| 2485 | |
| 2486 /* | |
| 2487 * headers frame: | |
| 2488 * | |
| 2489 * +---------------+ | |
| 2490 * |Pad Length? (8)| | |
| 2491 * +-+-------------+----------------------------------------------+ | |
| 2492 * |E| Stream Dependency? (31) | | |
| 2493 * +-+-------------+----------------------------------------------+ | |
| 2494 * | Weight? (8) | | |
| 2495 * +-+-------------+----------------------------------------------+ | |
| 2496 * | Header Block Fragment (*) ... | |
| 2497 * +--------------------------------------------------------------+ | |
| 2498 * | Padding (*) ... | |
| 2499 * +--------------------------------------------------------------+ | |
| 2500 */ | |
| 2501 | |
| 2502 switch (state) { | |
| 2503 | |
| 2504 case sw_padding_length: | |
| 2505 | |
| 2506 ctx->padding = ch; | |
| 2507 | |
| 2508 if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
| 2509 state = sw_dependency; | |
| 2510 break; | |
| 2511 } | |
| 2512 | |
| 2513 goto fragment; | |
| 2514 | |
| 2515 case sw_dependency: | |
| 2516 state = sw_dependency_2; | |
| 2517 break; | |
| 2518 | |
| 2519 case sw_dependency_2: | |
| 2520 state = sw_dependency_3; | |
| 2521 break; | |
| 2522 | |
| 2523 case sw_dependency_3: | |
| 2524 state = sw_dependency_4; | |
| 2525 break; | |
| 2526 | |
| 2527 case sw_dependency_4: | |
| 2528 state = sw_weight; | |
| 2529 break; | |
| 2530 | |
| 2531 case sw_weight: | |
| 2532 goto fragment; | |
| 2533 | |
| 2534 /* suppress warning */ | |
| 2535 case sw_start: | |
| 2536 case sw_fragment: | |
| 2537 case sw_padding: | |
| 2538 break; | |
| 2539 } | |
| 2540 } | |
| 2541 | |
| 2542 ctx->rest -= p - b->pos; | |
| 2543 b->pos = p; | |
| 2544 | |
| 2545 ctx->frame_state = state; | |
| 2546 return NGX_AGAIN; | |
| 2547 | |
| 2548 fragment: | |
| 2549 | |
| 2550 p++; | |
| 2551 ctx->rest -= p - b->pos; | |
| 2552 b->pos = p; | |
| 2553 | |
| 2554 if (ctx->padding > ctx->rest) { | |
| 2555 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2556 "upstream sent http2 frame with too long " | |
| 2557 "padding: %d in frame %uz", | |
| 2558 ctx->padding, ctx->rest); | |
| 2559 return NGX_ERROR; | |
| 2560 } | |
| 2561 | |
| 2562 state = sw_fragment; | |
| 2563 ctx->frame_state = state; | |
| 2564 } | |
| 2565 | |
| 2566 if (state == sw_fragment) { | |
| 2567 | |
| 2568 rc = ngx_http_grpc_parse_fragment(r, ctx, b); | |
| 2569 | |
| 2570 if (rc == NGX_AGAIN) { | |
| 2571 return NGX_AGAIN; | |
| 2572 } | |
| 2573 | |
| 2574 if (rc == NGX_ERROR) { | |
| 2575 return NGX_ERROR; | |
| 2576 } | |
| 2577 | |
| 2578 if (rc == NGX_OK) { | |
| 2579 return NGX_OK; | |
| 2580 } | |
| 2581 | |
| 2582 /* rc == NGX_DONE */ | |
| 2583 | |
| 2584 state = sw_padding; | |
| 2585 ctx->frame_state = state; | |
| 2586 } | |
| 2587 | |
| 2588 if (state == sw_padding) { | |
| 2589 | |
| 2590 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 2591 | |
| 2592 ctx->rest -= b->last - b->pos; | |
| 2593 b->pos = b->last; | |
| 2594 | |
| 2595 return NGX_AGAIN; | |
| 2596 } | |
| 2597 | |
| 2598 b->pos += ctx->rest; | |
| 2599 ctx->rest = 0; | |
| 2600 | |
| 2601 ctx->state = ngx_http_grpc_st_start; | |
| 2602 | |
| 2603 if (ctx->flags & NGX_HTTP_V2_END_HEADERS_FLAG) { | |
| 2604 | |
| 2605 if (ctx->fragment_state) { | |
| 2606 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2607 "upstream sent truncated http2 header"); | |
| 2608 return NGX_ERROR; | |
| 2609 } | |
| 2610 | |
| 2611 ctx->parsing_headers = 0; | |
| 2612 | |
| 2613 return NGX_HTTP_PARSE_HEADER_DONE; | |
| 2614 } | |
| 2615 | |
| 2616 return NGX_AGAIN; | |
| 2617 } | |
| 2618 | |
| 2619 /* unreachable */ | |
| 2620 | |
| 2621 return NGX_ERROR; | |
| 2622 } | |
| 2623 | |
| 2624 | |
| 2625 static ngx_int_t | |
| 2626 ngx_http_grpc_parse_fragment(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 2627 ngx_buf_t *b) | |
| 2628 { | |
| 2629 u_char ch, *p, *last; | |
| 2630 size_t size; | |
| 2631 ngx_uint_t index, size_update; | |
| 2632 enum { | |
| 2633 sw_start = 0, | |
| 2634 sw_index, | |
| 2635 sw_name_length, | |
| 2636 sw_name_length_2, | |
| 2637 sw_name_length_3, | |
| 2638 sw_name_length_4, | |
| 2639 sw_name, | |
| 2640 sw_name_bytes, | |
| 2641 sw_value_length, | |
| 2642 sw_value_length_2, | |
| 2643 sw_value_length_3, | |
| 2644 sw_value_length_4, | |
| 2645 sw_value, | |
| 2646 sw_value_bytes | |
| 2647 } state; | |
| 2648 | |
| 2649 /* header block fragment */ | |
| 2650 | |
| 2651 #if 0 | |
| 2652 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2653 "grpc header fragment %p:%p rest:%uz", | |
| 2654 b->pos, b->last, ctx->rest); | |
| 2655 #endif | |
| 2656 | |
| 2657 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
| 2658 last = b->last; | |
| 2659 | |
| 2660 } else { | |
| 2661 last = b->pos + ctx->rest - ctx->padding; | |
| 2662 } | |
| 2663 | |
| 2664 state = ctx->fragment_state; | |
| 2665 | |
| 2666 for (p = b->pos; p < last; p++) { | |
| 2667 ch = *p; | |
| 2668 | |
| 2669 #if 0 | |
| 2670 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2671 "grpc header byte: %02Xd s:%d", ch, state); | |
| 2672 #endif | |
| 2673 | |
| 2674 switch (state) { | |
| 2675 | |
| 2676 case sw_start: | |
| 2677 ctx->index = 0; | |
| 2678 | |
| 2679 if ((ch & 0x80) == 0x80) { | |
| 2680 /* | |
| 2681 * indexed header: | |
| 2682 * | |
| 2683 * 0 1 2 3 4 5 6 7 | |
| 2684 * +---+---+---+---+---+---+---+---+ | |
| 2685 * | 1 | Index (7+) | | |
| 2686 * +---+---------------------------+ | |
| 2687 */ | |
| 2688 | |
| 2689 index = ch & ~0x80; | |
| 2690 | |
| 2691 if (index == 0 || index > 61) { | |
| 2692 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2693 "upstream sent invalid http2 " | |
| 2694 "table index: %ui", index); | |
| 2695 return NGX_ERROR; | |
| 2696 } | |
| 2697 | |
| 2698 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2699 "grpc indexed header: %ui", index); | |
| 2700 | |
| 2701 ctx->index = index; | |
| 2702 ctx->literal = 0; | |
| 2703 | |
| 2704 goto done; | |
| 2705 | |
| 2706 } else if ((ch & 0xc0) == 0x40) { | |
| 2707 /* | |
| 2708 * literal header with incremental indexing: | |
| 2709 * | |
| 2710 * 0 1 2 3 4 5 6 7 | |
| 2711 * +---+---+---+---+---+---+---+---+ | |
| 2712 * | 0 | 1 | Index (6+) | | |
| 2713 * +---+---+-----------------------+ | |
| 2714 * | H | Value Length (7+) | | |
| 2715 * +---+---------------------------+ | |
| 2716 * | Value String (Length octets) | | |
| 2717 * +-------------------------------+ | |
| 2718 * | |
| 2719 * 0 1 2 3 4 5 6 7 | |
| 2720 * +---+---+---+---+---+---+---+---+ | |
| 2721 * | 0 | 1 | 0 | | |
| 2722 * +---+---+-----------------------+ | |
| 2723 * | H | Name Length (7+) | | |
| 2724 * +---+---------------------------+ | |
| 2725 * | Name String (Length octets) | | |
| 2726 * +---+---------------------------+ | |
| 2727 * | H | Value Length (7+) | | |
| 2728 * +---+---------------------------+ | |
| 2729 * | Value String (Length octets) | | |
| 2730 * +-------------------------------+ | |
| 2731 */ | |
| 2732 | |
| 2733 index = ch & ~0xc0; | |
| 2734 | |
| 2735 if (index > 61) { | |
| 2736 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2737 "upstream sent invalid http2 " | |
| 2738 "table index: %ui", index); | |
| 2739 return NGX_ERROR; | |
| 2740 } | |
| 2741 | |
| 2742 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2743 "grpc literal header: %ui", index); | |
| 2744 | |
| 2745 if (index == 0) { | |
| 2746 state = sw_name_length; | |
| 2747 break; | |
| 2748 } | |
| 2749 | |
| 2750 ctx->index = index; | |
| 2751 ctx->literal = 1; | |
| 2752 | |
| 2753 state = sw_value_length; | |
| 2754 break; | |
| 2755 | |
| 2756 } else if ((ch & 0xe0) == 0x20) { | |
| 2757 /* | |
| 2758 * dynamic table size update: | |
| 2759 * | |
| 2760 * 0 1 2 3 4 5 6 7 | |
| 2761 * +---+---+---+---+---+---+---+---+ | |
| 2762 * | 0 | 0 | 1 | Max size (5+) | | |
| 2763 * +---+---------------------------+ | |
| 2764 */ | |
| 2765 | |
| 2766 size_update = ch & ~0xe0; | |
| 2767 | |
| 2768 if (size_update > 0) { | |
| 2769 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2770 "upstream sent invalid http2 " | |
| 2771 "dynamic table size update: %ui", | |
| 2772 size_update); | |
| 2773 return NGX_ERROR; | |
| 2774 } | |
| 2775 | |
| 2776 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2777 "grpc table size update: %ui", size_update); | |
| 2778 | |
| 2779 break; | |
| 2780 | |
| 2781 } else if ((ch & 0xf0) == 0x10) { | |
| 2782 /* | |
| 2783 * literal header field never indexed: | |
| 2784 * | |
| 2785 * 0 1 2 3 4 5 6 7 | |
| 2786 * +---+---+---+---+---+---+---+---+ | |
| 2787 * | 0 | 0 | 0 | 1 | Index (4+) | | |
| 2788 * +---+---+-----------------------+ | |
| 2789 * | H | Value Length (7+) | | |
| 2790 * +---+---------------------------+ | |
| 2791 * | Value String (Length octets) | | |
| 2792 * +-------------------------------+ | |
| 2793 * | |
| 2794 * 0 1 2 3 4 5 6 7 | |
| 2795 * +---+---+---+---+---+---+---+---+ | |
| 2796 * | 0 | 0 | 0 | 1 | 0 | | |
| 2797 * +---+---+-----------------------+ | |
| 2798 * | H | Name Length (7+) | | |
| 2799 * +---+---------------------------+ | |
| 2800 * | Name String (Length octets) | | |
| 2801 * +---+---------------------------+ | |
| 2802 * | H | Value Length (7+) | | |
| 2803 * +---+---------------------------+ | |
| 2804 * | Value String (Length octets) | | |
| 2805 * +-------------------------------+ | |
| 2806 */ | |
| 2807 | |
| 2808 index = ch & ~0xf0; | |
| 2809 | |
| 2810 if (index == 0x0f) { | |
| 2811 ctx->index = index; | |
| 2812 ctx->literal = 1; | |
| 2813 state = sw_index; | |
| 2814 break; | |
| 2815 } | |
| 2816 | |
| 2817 if (index == 0) { | |
| 2818 state = sw_name_length; | |
| 2819 break; | |
| 2820 } | |
| 2821 | |
| 2822 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2823 "grpc literal header never indexed: %ui", | |
| 2824 index); | |
| 2825 | |
| 2826 ctx->index = index; | |
| 2827 ctx->literal = 1; | |
| 2828 | |
| 2829 state = sw_value_length; | |
| 2830 break; | |
| 2831 | |
| 2832 } else if ((ch & 0xf0) == 0x00) { | |
| 2833 /* | |
| 2834 * literal header field without indexing: | |
| 2835 * | |
| 2836 * 0 1 2 3 4 5 6 7 | |
| 2837 * +---+---+---+---+---+---+---+---+ | |
| 2838 * | 0 | 0 | 0 | 0 | Index (4+) | | |
| 2839 * +---+---+-----------------------+ | |
| 2840 * | H | Value Length (7+) | | |
| 2841 * +---+---------------------------+ | |
| 2842 * | Value String (Length octets) | | |
| 2843 * +-------------------------------+ | |
| 2844 * | |
| 2845 * 0 1 2 3 4 5 6 7 | |
| 2846 * +---+---+---+---+---+---+---+---+ | |
| 2847 * | 0 | 0 | 0 | 0 | 0 | | |
| 2848 * +---+---+-----------------------+ | |
| 2849 * | H | Name Length (7+) | | |
| 2850 * +---+---------------------------+ | |
| 2851 * | Name String (Length octets) | | |
| 2852 * +---+---------------------------+ | |
| 2853 * | H | Value Length (7+) | | |
| 2854 * +---+---------------------------+ | |
| 2855 * | Value String (Length octets) | | |
| 2856 * +-------------------------------+ | |
| 2857 */ | |
| 2858 | |
| 2859 index = ch & ~0xf0; | |
| 2860 | |
| 2861 if (index == 0x0f) { | |
| 2862 ctx->index = index; | |
| 2863 ctx->literal = 1; | |
| 2864 state = sw_index; | |
| 2865 break; | |
| 2866 } | |
| 2867 | |
| 2868 if (index == 0) { | |
| 2869 state = sw_name_length; | |
| 2870 break; | |
| 2871 } | |
| 2872 | |
| 2873 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2874 "grpc literal header without indexing: %ui", | |
| 2875 index); | |
| 2876 | |
| 2877 ctx->index = index; | |
| 2878 ctx->literal = 1; | |
| 2879 | |
| 2880 state = sw_value_length; | |
| 2881 break; | |
| 2882 } | |
| 2883 | |
| 2884 /* not reached */ | |
| 2885 | |
| 2886 return NGX_ERROR; | |
| 2887 | |
| 2888 case sw_index: | |
| 2889 ctx->index = ctx->index + (ch & ~0x80); | |
| 2890 | |
| 2891 if (ch & 0x80) { | |
| 2892 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2893 "upstream sent http2 table index " | |
| 2894 "with continuation flag"); | |
| 2895 return NGX_ERROR; | |
| 2896 } | |
| 2897 | |
| 2898 if (ctx->index > 61) { | |
| 2899 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2900 "upstream sent invalid http2 " | |
| 2901 "table index: %ui", ctx->index); | |
| 2902 return NGX_ERROR; | |
| 2903 } | |
| 2904 | |
| 2905 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2906 "grpc header index: %ui", ctx->index); | |
| 2907 | |
| 2908 state = sw_value_length; | |
| 2909 break; | |
| 2910 | |
| 2911 case sw_name_length: | |
| 2912 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
| 2913 ctx->field_length = ch & ~0x80; | |
| 2914 | |
| 2915 if (ctx->field_length == 0x7f) { | |
| 2916 state = sw_name_length_2; | |
| 2917 break; | |
| 2918 } | |
| 2919 | |
| 2920 if (ctx->field_length == 0) { | |
| 2921 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2922 "upstream sent zero http2 " | |
| 2923 "header name length"); | |
| 2924 return NGX_ERROR; | |
| 2925 } | |
| 2926 | |
| 2927 state = sw_name; | |
| 2928 break; | |
| 2929 | |
| 2930 case sw_name_length_2: | |
| 2931 ctx->field_length += ch & ~0x80; | |
| 2932 | |
| 2933 if (ch & 0x80) { | |
| 2934 state = sw_name_length_3; | |
| 2935 break; | |
| 2936 } | |
| 2937 | |
| 2938 state = sw_name; | |
| 2939 break; | |
| 2940 | |
| 2941 case sw_name_length_3: | |
| 2942 ctx->field_length += (ch & ~0x80) << 7; | |
| 2943 | |
| 2944 if (ch & 0x80) { | |
| 2945 state = sw_name_length_4; | |
| 2946 break; | |
| 2947 } | |
| 2948 | |
| 2949 state = sw_name; | |
| 2950 break; | |
| 2951 | |
| 2952 case sw_name_length_4: | |
| 2953 ctx->field_length += (ch & ~0x80) << 14; | |
| 2954 | |
| 2955 if (ch & 0x80) { | |
| 2956 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 2957 "upstream sent too large http2 " | |
| 2958 "header name length"); | |
| 2959 return NGX_ERROR; | |
| 2960 } | |
| 2961 | |
| 2962 state = sw_name; | |
| 2963 break; | |
| 2964 | |
| 2965 case sw_name: | |
| 2966 ctx->name.len = ctx->field_huffman ? | |
| 2967 ctx->field_length * 8 / 5 : ctx->field_length; | |
| 2968 | |
| 2969 ctx->name.data = ngx_pnalloc(r->pool, ctx->name.len + 1); | |
| 2970 if (ctx->name.data == NULL) { | |
| 2971 return NGX_ERROR; | |
| 2972 } | |
| 2973 | |
| 2974 ctx->field_end = ctx->name.data; | |
| 2975 ctx->field_rest = ctx->field_length; | |
| 2976 ctx->field_state = 0; | |
| 2977 | |
| 2978 state = sw_name_bytes; | |
| 2979 | |
| 2980 /* fall through */ | |
| 2981 | |
| 2982 case sw_name_bytes: | |
| 2983 | |
| 2984 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 2985 "grpc name: len:%uz h:%d last:%uz, rest:%uz", | |
| 2986 ctx->field_length, | |
| 2987 ctx->field_huffman, | |
| 2988 last - p, | |
| 2989 ctx->rest - (p - b->pos)); | |
| 2990 | |
| 2991 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
| 2992 ctx->field_rest -= size; | |
| 2993 | |
| 2994 if (ctx->field_huffman) { | |
| 2995 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
| 2996 &ctx->field_end, | |
| 2997 ctx->field_rest == 0, | |
| 2998 r->connection->log) | |
| 2999 != NGX_OK) | |
| 3000 { | |
| 3001 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3002 "upstream sent invalid encoded header"); | |
| 3003 return NGX_ERROR; | |
| 3004 } | |
| 3005 | |
| 3006 ctx->name.len = ctx->field_end - ctx->name.data; | |
| 3007 ctx->name.data[ctx->name.len] = '\0'; | |
| 3008 | |
| 3009 } else { | |
|
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3010 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
| 7233 | 3011 ctx->name.data[ctx->name.len] = '\0'; |
| 3012 } | |
| 3013 | |
| 3014 p += size - 1; | |
| 3015 | |
| 3016 if (ctx->field_rest == 0) { | |
| 3017 state = sw_value_length; | |
| 3018 } | |
| 3019 | |
| 3020 break; | |
| 3021 | |
| 3022 case sw_value_length: | |
| 3023 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
| 3024 ctx->field_length = ch & ~0x80; | |
| 3025 | |
| 3026 if (ctx->field_length == 0x7f) { | |
| 3027 state = sw_value_length_2; | |
| 3028 break; | |
| 3029 } | |
| 3030 | |
| 3031 if (ctx->field_length == 0) { | |
| 3032 ngx_str_set(&ctx->value, ""); | |
| 3033 goto done; | |
| 3034 } | |
| 3035 | |
| 3036 state = sw_value; | |
| 3037 break; | |
| 3038 | |
| 3039 case sw_value_length_2: | |
| 3040 ctx->field_length += ch & ~0x80; | |
| 3041 | |
| 3042 if (ch & 0x80) { | |
| 3043 state = sw_value_length_3; | |
| 3044 break; | |
| 3045 } | |
| 3046 | |
| 3047 state = sw_value; | |
| 3048 break; | |
| 3049 | |
| 3050 case sw_value_length_3: | |
| 3051 ctx->field_length += (ch & ~0x80) << 7; | |
| 3052 | |
| 3053 if (ch & 0x80) { | |
| 3054 state = sw_value_length_4; | |
| 3055 break; | |
| 3056 } | |
| 3057 | |
| 3058 state = sw_value; | |
| 3059 break; | |
| 3060 | |
| 3061 case sw_value_length_4: | |
| 3062 ctx->field_length += (ch & ~0x80) << 14; | |
| 3063 | |
| 3064 if (ch & 0x80) { | |
| 3065 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3066 "upstream sent too large http2 " | |
| 3067 "header value length"); | |
| 3068 return NGX_ERROR; | |
| 3069 } | |
| 3070 | |
| 3071 state = sw_value; | |
| 3072 break; | |
| 3073 | |
| 3074 case sw_value: | |
| 3075 ctx->value.len = ctx->field_huffman ? | |
| 3076 ctx->field_length * 8 / 5 : ctx->field_length; | |
| 3077 | |
| 3078 ctx->value.data = ngx_pnalloc(r->pool, ctx->value.len + 1); | |
| 3079 if (ctx->value.data == NULL) { | |
| 3080 return NGX_ERROR; | |
| 3081 } | |
| 3082 | |
| 3083 ctx->field_end = ctx->value.data; | |
| 3084 ctx->field_rest = ctx->field_length; | |
| 3085 ctx->field_state = 0; | |
| 3086 | |
| 3087 state = sw_value_bytes; | |
| 3088 | |
| 3089 /* fall through */ | |
| 3090 | |
| 3091 case sw_value_bytes: | |
| 3092 | |
| 3093 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3094 "grpc value: len:%uz h:%d last:%uz, rest:%uz", | |
| 3095 ctx->field_length, | |
| 3096 ctx->field_huffman, | |
| 3097 last - p, | |
| 3098 ctx->rest - (p - b->pos)); | |
| 3099 | |
| 3100 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
| 3101 ctx->field_rest -= size; | |
| 3102 | |
| 3103 if (ctx->field_huffman) { | |
| 3104 if (ngx_http_v2_huff_decode(&ctx->field_state, p, size, | |
| 3105 &ctx->field_end, | |
| 3106 ctx->field_rest == 0, | |
| 3107 r->connection->log) | |
| 3108 != NGX_OK) | |
| 3109 { | |
| 3110 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3111 "upstream sent invalid encoded header"); | |
| 3112 return NGX_ERROR; | |
| 3113 } | |
| 3114 | |
| 3115 ctx->value.len = ctx->field_end - ctx->value.data; | |
| 3116 ctx->value.data[ctx->value.len] = '\0'; | |
| 3117 | |
| 3118 } else { | |
|
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3119 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
| 7233 | 3120 ctx->value.data[ctx->value.len] = '\0'; |
| 3121 } | |
| 3122 | |
| 3123 p += size - 1; | |
| 3124 | |
| 3125 if (ctx->field_rest == 0) { | |
| 3126 goto done; | |
| 3127 } | |
| 3128 | |
| 3129 break; | |
| 3130 } | |
| 3131 | |
| 3132 continue; | |
| 3133 | |
| 3134 done: | |
| 3135 | |
| 3136 p++; | |
| 3137 ctx->rest -= p - b->pos; | |
| 3138 ctx->fragment_state = sw_start; | |
| 3139 b->pos = p; | |
| 3140 | |
| 3141 if (ctx->index) { | |
| 3142 ctx->name = *ngx_http_v2_get_static_name(ctx->index); | |
| 3143 } | |
| 3144 | |
| 3145 if (ctx->index && !ctx->literal) { | |
| 3146 ctx->value = *ngx_http_v2_get_static_value(ctx->index); | |
| 3147 } | |
| 3148 | |
| 3149 if (!ctx->index) { | |
| 3150 if (ngx_http_grpc_validate_header_name(r, &ctx->name) != NGX_OK) { | |
| 3151 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3152 "upstream sent invalid header: \"%V: %V\"", | |
| 3153 &ctx->name, &ctx->value); | |
| 3154 return NGX_ERROR; | |
| 3155 } | |
| 3156 } | |
| 3157 | |
| 3158 if (!ctx->index || ctx->literal) { | |
| 3159 if (ngx_http_grpc_validate_header_value(r, &ctx->value) != NGX_OK) { | |
| 3160 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3161 "upstream sent invalid header: \"%V: %V\"", | |
| 3162 &ctx->name, &ctx->value); | |
| 3163 return NGX_ERROR; | |
| 3164 } | |
| 3165 } | |
| 3166 | |
| 3167 return NGX_OK; | |
| 3168 } | |
| 3169 | |
| 3170 ctx->rest -= p - b->pos; | |
| 3171 ctx->fragment_state = state; | |
| 3172 b->pos = p; | |
| 3173 | |
| 3174 if (ctx->rest > ctx->padding) { | |
| 3175 return NGX_AGAIN; | |
| 3176 } | |
| 3177 | |
| 3178 return NGX_DONE; | |
| 3179 } | |
| 3180 | |
| 3181 | |
| 3182 static ngx_int_t | |
| 3183 ngx_http_grpc_validate_header_name(ngx_http_request_t *r, ngx_str_t *s) | |
| 3184 { | |
| 3185 u_char ch; | |
| 3186 ngx_uint_t i; | |
| 3187 | |
| 3188 for (i = 0; i < s->len; i++) { | |
| 3189 ch = s->data[i]; | |
| 3190 | |
| 3191 if (ch == ':' && i > 0) { | |
| 3192 return NGX_ERROR; | |
| 3193 } | |
| 3194 | |
| 3195 if (ch >= 'A' && ch <= 'Z') { | |
| 3196 return NGX_ERROR; | |
| 3197 } | |
| 3198 | |
| 3199 if (ch == '\0' || ch == CR || ch == LF) { | |
| 3200 return NGX_ERROR; | |
| 3201 } | |
| 3202 } | |
| 3203 | |
| 3204 return NGX_OK; | |
| 3205 } | |
| 3206 | |
| 3207 | |
| 3208 static ngx_int_t | |
| 3209 ngx_http_grpc_validate_header_value(ngx_http_request_t *r, ngx_str_t *s) | |
| 3210 { | |
| 3211 u_char ch; | |
| 3212 ngx_uint_t i; | |
| 3213 | |
| 3214 for (i = 0; i < s->len; i++) { | |
| 3215 ch = s->data[i]; | |
| 3216 | |
| 3217 if (ch == '\0' || ch == CR || ch == LF) { | |
| 3218 return NGX_ERROR; | |
| 3219 } | |
| 3220 } | |
| 3221 | |
| 3222 return NGX_OK; | |
| 3223 } | |
| 3224 | |
| 3225 | |
| 3226 static ngx_int_t | |
| 3227 ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3228 ngx_buf_t *b) | |
| 3229 { | |
| 3230 u_char ch, *p, *last; | |
| 3231 enum { | |
| 3232 sw_start = 0, | |
| 3233 sw_error_2, | |
| 3234 sw_error_3, | |
| 3235 sw_error_4 | |
| 3236 } state; | |
| 3237 | |
| 3238 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3239 last = b->last; | |
| 3240 | |
| 3241 } else { | |
| 3242 last = b->pos + ctx->rest; | |
| 3243 } | |
| 3244 | |
| 3245 state = ctx->frame_state; | |
| 3246 | |
| 3247 if (state == sw_start) { | |
| 3248 if (ctx->rest != 4) { | |
| 3249 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3250 "upstream sent rst stream frame " | |
| 3251 "with invalid length: %uz", | |
| 3252 ctx->rest); | |
| 3253 return NGX_ERROR; | |
| 3254 } | |
| 3255 } | |
| 3256 | |
| 3257 for (p = b->pos; p < last; p++) { | |
| 3258 ch = *p; | |
| 3259 | |
| 3260 #if 0 | |
| 3261 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3262 "grpc rst byte: %02Xd s:%d", ch, state); | |
| 3263 #endif | |
| 3264 | |
| 3265 switch (state) { | |
| 3266 | |
| 3267 case sw_start: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3268 ctx->error = (ngx_uint_t) ch << 24; |
| 7233 | 3269 state = sw_error_2; |
| 3270 break; | |
| 3271 | |
| 3272 case sw_error_2: | |
| 3273 ctx->error |= ch << 16; | |
| 3274 state = sw_error_3; | |
| 3275 break; | |
| 3276 | |
| 3277 case sw_error_3: | |
| 3278 ctx->error |= ch << 8; | |
| 3279 state = sw_error_4; | |
| 3280 break; | |
| 3281 | |
| 3282 case sw_error_4: | |
| 3283 ctx->error |= ch; | |
| 3284 state = sw_start; | |
| 3285 | |
| 3286 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3287 "grpc error: %ui", ctx->error); | |
| 3288 | |
| 3289 break; | |
| 3290 } | |
| 3291 } | |
| 3292 | |
| 3293 ctx->rest -= p - b->pos; | |
| 3294 ctx->frame_state = state; | |
| 3295 b->pos = p; | |
| 3296 | |
| 3297 if (ctx->rest > 0) { | |
| 3298 return NGX_AGAIN; | |
| 3299 } | |
| 3300 | |
| 3301 return NGX_OK; | |
| 3302 } | |
| 3303 | |
| 3304 | |
| 3305 static ngx_int_t | |
| 3306 ngx_http_grpc_parse_goaway(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3307 ngx_buf_t *b) | |
| 3308 { | |
| 3309 u_char ch, *p, *last; | |
| 3310 enum { | |
| 3311 sw_start = 0, | |
| 3312 sw_last_stream_id_2, | |
| 3313 sw_last_stream_id_3, | |
| 3314 sw_last_stream_id_4, | |
| 3315 sw_error, | |
| 3316 sw_error_2, | |
| 3317 sw_error_3, | |
| 3318 sw_error_4, | |
| 3319 sw_debug | |
| 3320 } state; | |
| 3321 | |
| 3322 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3323 last = b->last; | |
| 3324 | |
| 3325 } else { | |
| 3326 last = b->pos + ctx->rest; | |
| 3327 } | |
| 3328 | |
| 3329 state = ctx->frame_state; | |
| 3330 | |
| 3331 if (state == sw_start) { | |
| 3332 | |
| 3333 if (ctx->stream_id) { | |
| 3334 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3335 "upstream sent goaway frame " | |
| 3336 "with non-zero stream id: %ui", | |
| 3337 ctx->stream_id); | |
| 3338 return NGX_ERROR; | |
| 3339 } | |
| 3340 | |
| 3341 if (ctx->rest < 8) { | |
| 3342 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3343 "upstream sent goaway frame " | |
| 3344 "with invalid length: %uz", | |
| 3345 ctx->rest); | |
| 3346 return NGX_ERROR; | |
| 3347 } | |
| 3348 } | |
| 3349 | |
| 3350 for (p = b->pos; p < last; p++) { | |
| 3351 ch = *p; | |
| 3352 | |
| 3353 #if 0 | |
| 3354 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3355 "grpc goaway byte: %02Xd s:%d", ch, state); | |
| 3356 #endif | |
| 3357 | |
| 3358 switch (state) { | |
| 3359 | |
| 3360 case sw_start: | |
| 3361 ctx->stream_id = (ch & 0x7f) << 24; | |
| 3362 state = sw_last_stream_id_2; | |
| 3363 break; | |
| 3364 | |
| 3365 case sw_last_stream_id_2: | |
| 3366 ctx->stream_id |= ch << 16; | |
| 3367 state = sw_last_stream_id_3; | |
| 3368 break; | |
| 3369 | |
| 3370 case sw_last_stream_id_3: | |
| 3371 ctx->stream_id |= ch << 8; | |
| 3372 state = sw_last_stream_id_4; | |
| 3373 break; | |
| 3374 | |
| 3375 case sw_last_stream_id_4: | |
| 3376 ctx->stream_id |= ch; | |
| 3377 state = sw_error; | |
| 3378 break; | |
| 3379 | |
| 3380 case sw_error: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3381 ctx->error = (ngx_uint_t) ch << 24; |
| 7233 | 3382 state = sw_error_2; |
| 3383 break; | |
| 3384 | |
| 3385 case sw_error_2: | |
| 3386 ctx->error |= ch << 16; | |
| 3387 state = sw_error_3; | |
| 3388 break; | |
| 3389 | |
| 3390 case sw_error_3: | |
| 3391 ctx->error |= ch << 8; | |
| 3392 state = sw_error_4; | |
| 3393 break; | |
| 3394 | |
| 3395 case sw_error_4: | |
| 3396 ctx->error |= ch; | |
| 3397 state = sw_debug; | |
| 3398 break; | |
| 3399 | |
| 3400 case sw_debug: | |
| 3401 break; | |
| 3402 } | |
| 3403 } | |
| 3404 | |
| 3405 ctx->rest -= p - b->pos; | |
| 3406 ctx->frame_state = state; | |
| 3407 b->pos = p; | |
| 3408 | |
| 3409 if (ctx->rest > 0) { | |
| 3410 return NGX_AGAIN; | |
| 3411 } | |
| 3412 | |
| 3413 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3414 "grpc goaway: %ui, stream %ui", | |
| 3415 ctx->error, ctx->stream_id); | |
| 3416 | |
| 3417 ctx->state = ngx_http_grpc_st_start; | |
| 3418 | |
| 3419 return NGX_OK; | |
| 3420 } | |
| 3421 | |
| 3422 | |
| 3423 static ngx_int_t | |
| 3424 ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
| 3425 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
| 3426 { | |
| 3427 u_char ch, *p, *last; | |
| 3428 enum { | |
| 3429 sw_start = 0, | |
| 3430 sw_size_2, | |
| 3431 sw_size_3, | |
| 3432 sw_size_4 | |
| 3433 } state; | |
| 3434 | |
| 3435 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3436 last = b->last; | |
| 3437 | |
| 3438 } else { | |
| 3439 last = b->pos + ctx->rest; | |
| 3440 } | |
| 3441 | |
| 3442 state = ctx->frame_state; | |
| 3443 | |
| 3444 if (state == sw_start) { | |
| 3445 if (ctx->rest != 4) { | |
| 3446 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3447 "upstream sent window update frame " | |
| 3448 "with invalid length: %uz", | |
| 3449 ctx->rest); | |
| 3450 return NGX_ERROR; | |
| 3451 } | |
| 3452 } | |
| 3453 | |
| 3454 for (p = b->pos; p < last; p++) { | |
| 3455 ch = *p; | |
| 3456 | |
| 3457 #if 0 | |
| 3458 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3459 "grpc window update byte: %02Xd s:%d", ch, state); | |
| 3460 #endif | |
| 3461 | |
| 3462 switch (state) { | |
| 3463 | |
| 3464 case sw_start: | |
| 3465 ctx->window_update = (ch & 0x7f) << 24; | |
| 3466 state = sw_size_2; | |
| 3467 break; | |
| 3468 | |
| 3469 case sw_size_2: | |
| 3470 ctx->window_update |= ch << 16; | |
| 3471 state = sw_size_3; | |
| 3472 break; | |
| 3473 | |
| 3474 case sw_size_3: | |
| 3475 ctx->window_update |= ch << 8; | |
| 3476 state = sw_size_4; | |
| 3477 break; | |
| 3478 | |
| 3479 case sw_size_4: | |
| 3480 ctx->window_update |= ch; | |
| 3481 state = sw_start; | |
| 3482 break; | |
| 3483 } | |
| 3484 } | |
| 3485 | |
| 3486 ctx->rest -= p - b->pos; | |
| 3487 ctx->frame_state = state; | |
| 3488 b->pos = p; | |
| 3489 | |
| 3490 if (ctx->rest > 0) { | |
| 3491 return NGX_AGAIN; | |
| 3492 } | |
| 3493 | |
| 3494 ctx->state = ngx_http_grpc_st_start; | |
| 3495 | |
| 3496 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3497 "grpc window update: %ui", ctx->window_update); | |
| 3498 | |
| 3499 if (ctx->stream_id) { | |
| 3500 | |
| 3501 if (ctx->window_update > (size_t) NGX_HTTP_V2_MAX_WINDOW | |
| 3502 - ctx->send_window) | |
| 3503 { | |
| 3504 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3505 "upstream sent too large window update"); | |
| 3506 return NGX_ERROR; | |
| 3507 } | |
| 3508 | |
| 3509 ctx->send_window += ctx->window_update; | |
| 3510 | |
| 3511 } else { | |
| 3512 | |
| 3513 if (ctx->window_update > NGX_HTTP_V2_MAX_WINDOW | |
| 3514 - ctx->connection->send_window) | |
| 3515 { | |
| 3516 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3517 "upstream sent too large window update"); | |
| 3518 return NGX_ERROR; | |
| 3519 } | |
| 3520 | |
| 3521 ctx->connection->send_window += ctx->window_update; | |
| 3522 } | |
| 3523 | |
| 3524 return NGX_OK; | |
| 3525 } | |
| 3526 | |
| 3527 | |
| 3528 static ngx_int_t | |
| 3529 ngx_http_grpc_parse_settings(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
| 3530 ngx_buf_t *b) | |
| 3531 { | |
| 3532 u_char ch, *p, *last; | |
| 3533 ssize_t window_update; | |
| 3534 enum { | |
| 3535 sw_start = 0, | |
| 3536 sw_id, | |
| 3537 sw_id_2, | |
| 3538 sw_value, | |
| 3539 sw_value_2, | |
| 3540 sw_value_3, | |
| 3541 sw_value_4 | |
| 3542 } state; | |
| 3543 | |
| 3544 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3545 last = b->last; | |
| 3546 | |
| 3547 } else { | |
| 3548 last = b->pos + ctx->rest; | |
| 3549 } | |
| 3550 | |
| 3551 state = ctx->frame_state; | |
| 3552 | |
| 3553 if (state == sw_start) { | |
| 3554 | |
| 3555 if (ctx->stream_id) { | |
| 3556 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3557 "upstream sent settings frame " | |
| 3558 "with non-zero stream id: %ui", | |
| 3559 ctx->stream_id); | |
| 3560 return NGX_ERROR; | |
| 3561 } | |
| 3562 | |
| 3563 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
| 3564 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3565 "grpc settings ack"); | |
| 3566 | |
| 3567 if (ctx->rest != 0) { | |
| 3568 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3569 "upstream sent settings frame " | |
| 3570 "with ack flag and non-zero length: %uz", | |
| 3571 ctx->rest); | |
| 3572 return NGX_ERROR; | |
| 3573 } | |
| 3574 | |
| 3575 ctx->state = ngx_http_grpc_st_start; | |
| 3576 | |
| 3577 return NGX_OK; | |
| 3578 } | |
| 3579 | |
| 3580 if (ctx->rest % 6 != 0) { | |
| 3581 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3582 "upstream sent settings frame " | |
| 3583 "with invalid length: %uz", | |
| 3584 ctx->rest); | |
| 3585 return NGX_ERROR; | |
| 3586 } | |
| 3587 } | |
| 3588 | |
| 3589 for (p = b->pos; p < last; p++) { | |
| 3590 ch = *p; | |
| 3591 | |
| 3592 #if 0 | |
| 3593 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3594 "grpc settings byte: %02Xd s:%d", ch, state); | |
| 3595 #endif | |
| 3596 | |
| 3597 switch (state) { | |
| 3598 | |
| 3599 case sw_start: | |
| 3600 case sw_id: | |
| 3601 ctx->setting_id = ch << 8; | |
| 3602 state = sw_id_2; | |
| 3603 break; | |
| 3604 | |
| 3605 case sw_id_2: | |
| 3606 ctx->setting_id |= ch; | |
| 3607 state = sw_value; | |
| 3608 break; | |
| 3609 | |
| 3610 case sw_value: | |
|
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3611 ctx->setting_value = (ngx_uint_t) ch << 24; |
| 7233 | 3612 state = sw_value_2; |
| 3613 break; | |
| 3614 | |
| 3615 case sw_value_2: | |
| 3616 ctx->setting_value |= ch << 16; | |
| 3617 state = sw_value_3; | |
| 3618 break; | |
| 3619 | |
| 3620 case sw_value_3: | |
| 3621 ctx->setting_value |= ch << 8; | |
| 3622 state = sw_value_4; | |
| 3623 break; | |
| 3624 | |
| 3625 case sw_value_4: | |
| 3626 ctx->setting_value |= ch; | |
| 3627 state = sw_id; | |
| 3628 | |
| 3629 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3630 "grpc setting: %ui %ui", | |
| 3631 ctx->setting_id, ctx->setting_value); | |
| 3632 | |
| 3633 /* | |
| 3634 * The following settings are defined by the protocol: | |
| 3635 * | |
| 3636 * SETTINGS_HEADER_TABLE_SIZE, SETTINGS_ENABLE_PUSH, | |
| 3637 * SETTINGS_MAX_CONCURRENT_STREAMS, SETTINGS_INITIAL_WINDOW_SIZE, | |
| 3638 * SETTINGS_MAX_FRAME_SIZE, SETTINGS_MAX_HEADER_LIST_SIZE | |
| 3639 * | |
| 3640 * Only SETTINGS_INITIAL_WINDOW_SIZE seems to be needed in | |
| 3641 * a simple client. | |
| 3642 */ | |
| 3643 | |
| 3644 if (ctx->setting_id == 0x04) { | |
| 3645 /* SETTINGS_INITIAL_WINDOW_SIZE */ | |
| 3646 | |
| 3647 if (ctx->setting_value > NGX_HTTP_V2_MAX_WINDOW) { | |
| 3648 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3649 "upstream sent settings frame " | |
| 3650 "with too large initial window size: %ui", | |
| 3651 ctx->setting_value); | |
| 3652 return NGX_ERROR; | |
| 3653 } | |
| 3654 | |
| 3655 window_update = ctx->setting_value | |
| 3656 - ctx->connection->init_window; | |
| 3657 ctx->connection->init_window = ctx->setting_value; | |
| 3658 | |
| 3659 if (ctx->send_window > 0 | |
| 3660 && window_update > (ssize_t) NGX_HTTP_V2_MAX_WINDOW | |
| 3661 - ctx->send_window) | |
| 3662 { | |
| 3663 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3664 "upstream sent settings frame " | |
| 3665 "with too large initial window size: %ui", | |
| 3666 ctx->setting_value); | |
| 3667 return NGX_ERROR; | |
| 3668 } | |
| 3669 | |
| 3670 ctx->send_window += window_update; | |
| 3671 } | |
| 3672 | |
| 3673 break; | |
| 3674 } | |
| 3675 } | |
| 3676 | |
| 3677 ctx->rest -= p - b->pos; | |
| 3678 ctx->frame_state = state; | |
| 3679 b->pos = p; | |
| 3680 | |
| 3681 if (ctx->rest > 0) { | |
| 3682 return NGX_AGAIN; | |
| 3683 } | |
| 3684 | |
| 3685 ctx->state = ngx_http_grpc_st_start; | |
| 3686 | |
| 3687 return ngx_http_grpc_send_settings_ack(r, ctx); | |
| 3688 } | |
| 3689 | |
| 3690 | |
| 3691 static ngx_int_t | |
| 3692 ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
| 3693 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
| 3694 { | |
| 3695 u_char ch, *p, *last; | |
| 3696 enum { | |
| 3697 sw_start = 0, | |
| 3698 sw_data_2, | |
| 3699 sw_data_3, | |
| 3700 sw_data_4, | |
| 3701 sw_data_5, | |
| 3702 sw_data_6, | |
| 3703 sw_data_7, | |
| 3704 sw_data_8 | |
| 3705 } state; | |
| 3706 | |
| 3707 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
| 3708 last = b->last; | |
| 3709 | |
| 3710 } else { | |
| 3711 last = b->pos + ctx->rest; | |
| 3712 } | |
| 3713 | |
| 3714 state = ctx->frame_state; | |
| 3715 | |
| 3716 if (state == sw_start) { | |
| 3717 | |
| 3718 if (ctx->stream_id) { | |
| 3719 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3720 "upstream sent ping frame " | |
| 3721 "with non-zero stream id: %ui", | |
| 3722 ctx->stream_id); | |
| 3723 return NGX_ERROR; | |
| 3724 } | |
| 3725 | |
| 3726 if (ctx->rest != 8) { | |
| 3727 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3728 "upstream sent ping frame " | |
| 3729 "with invalid length: %uz", | |
| 3730 ctx->rest); | |
| 3731 return NGX_ERROR; | |
| 3732 } | |
| 3733 | |
| 3734 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
| 3735 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 3736 "upstream sent ping frame with ack flag"); | |
| 3737 return NGX_ERROR; | |
| 3738 } | |
| 3739 } | |
| 3740 | |
| 3741 for (p = b->pos; p < last; p++) { | |
| 3742 ch = *p; | |
| 3743 | |
| 3744 #if 0 | |
| 3745 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3746 "grpc ping byte: %02Xd s:%d", ch, state); | |
| 3747 #endif | |
| 3748 | |
| 3749 if (state < sw_data_8) { | |
| 3750 ctx->ping_data[state] = ch; | |
| 3751 state++; | |
| 3752 | |
| 3753 } else { | |
| 3754 ctx->ping_data[7] = ch; | |
| 3755 state = sw_start; | |
| 3756 | |
| 3757 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3758 "grpc ping"); | |
| 3759 } | |
| 3760 } | |
| 3761 | |
| 3762 ctx->rest -= p - b->pos; | |
| 3763 ctx->frame_state = state; | |
| 3764 b->pos = p; | |
| 3765 | |
| 3766 if (ctx->rest > 0) { | |
| 3767 return NGX_AGAIN; | |
| 3768 } | |
| 3769 | |
| 3770 ctx->state = ngx_http_grpc_st_start; | |
| 3771 | |
| 3772 return ngx_http_grpc_send_ping_ack(r, ctx); | |
| 3773 } | |
| 3774 | |
| 3775 | |
| 3776 static ngx_int_t | |
| 3777 ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 3778 { | |
| 3779 ngx_chain_t *cl, **ll; | |
| 3780 ngx_http_grpc_frame_t *f; | |
| 3781 | |
| 3782 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3783 "grpc send settings ack"); | |
| 3784 | |
| 3785 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 3786 ll = &cl->next; | |
| 3787 } | |
| 3788 | |
| 3789 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 3790 if (cl == NULL) { | |
| 3791 return NGX_ERROR; | |
| 3792 } | |
| 3793 | |
| 3794 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 3795 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 3796 | |
| 3797 f->length_0 = 0; | |
| 3798 f->length_1 = 0; | |
| 3799 f->length_2 = 0; | |
| 3800 f->type = NGX_HTTP_V2_SETTINGS_FRAME; | |
| 3801 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
| 3802 f->stream_id_0 = 0; | |
| 3803 f->stream_id_1 = 0; | |
| 3804 f->stream_id_2 = 0; | |
| 3805 f->stream_id_3 = 0; | |
| 3806 | |
| 3807 *ll = cl; | |
| 3808 | |
| 3809 return NGX_OK; | |
| 3810 } | |
| 3811 | |
| 3812 | |
| 3813 static ngx_int_t | |
| 3814 ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 3815 { | |
| 3816 ngx_chain_t *cl, **ll; | |
| 3817 ngx_http_grpc_frame_t *f; | |
| 3818 | |
| 3819 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3820 "grpc send ping ack"); | |
| 3821 | |
| 3822 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 3823 ll = &cl->next; | |
| 3824 } | |
| 3825 | |
| 3826 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 3827 if (cl == NULL) { | |
| 3828 return NGX_ERROR; | |
| 3829 } | |
| 3830 | |
| 3831 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 3832 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 3833 | |
| 3834 f->length_0 = 0; | |
| 3835 f->length_1 = 0; | |
| 3836 f->length_2 = 8; | |
| 3837 f->type = NGX_HTTP_V2_PING_FRAME; | |
| 3838 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
| 3839 f->stream_id_0 = 0; | |
| 3840 f->stream_id_1 = 0; | |
| 3841 f->stream_id_2 = 0; | |
| 3842 f->stream_id_3 = 0; | |
| 3843 | |
| 3844 cl->buf->last = ngx_copy(cl->buf->last, ctx->ping_data, 8); | |
| 3845 | |
| 3846 *ll = cl; | |
| 3847 | |
| 3848 return NGX_OK; | |
| 3849 } | |
| 3850 | |
| 3851 | |
| 3852 static ngx_int_t | |
| 3853 ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
| 3854 ngx_http_grpc_ctx_t *ctx) | |
| 3855 { | |
| 3856 size_t n; | |
| 3857 ngx_chain_t *cl, **ll; | |
| 3858 ngx_http_grpc_frame_t *f; | |
| 3859 | |
| 3860 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 3861 "grpc send window update: %uz %uz", | |
| 3862 ctx->connection->recv_window, ctx->recv_window); | |
| 3863 | |
| 3864 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
| 3865 ll = &cl->next; | |
| 3866 } | |
| 3867 | |
| 3868 cl = ngx_http_grpc_get_buf(r, ctx); | |
| 3869 if (cl == NULL) { | |
| 3870 return NGX_ERROR; | |
| 3871 } | |
| 3872 | |
| 3873 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 3874 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 3875 | |
| 3876 f->length_0 = 0; | |
| 3877 f->length_1 = 0; | |
| 3878 f->length_2 = 4; | |
| 3879 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
| 3880 f->flags = 0; | |
| 3881 f->stream_id_0 = 0; | |
| 3882 f->stream_id_1 = 0; | |
| 3883 f->stream_id_2 = 0; | |
| 3884 f->stream_id_3 = 0; | |
| 3885 | |
| 3886 n = NGX_HTTP_V2_MAX_WINDOW - ctx->connection->recv_window; | |
| 3887 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 3888 | |
| 3889 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
| 3890 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
| 3891 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
| 3892 *cl->buf->last++ = (u_char) (n & 0xff); | |
| 3893 | |
| 3894 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
| 3895 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
| 3896 | |
| 3897 f->length_0 = 0; | |
| 3898 f->length_1 = 0; | |
| 3899 f->length_2 = 4; | |
| 3900 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
| 3901 f->flags = 0; | |
| 3902 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
| 3903 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
| 3904 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
| 3905 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
| 3906 | |
| 3907 n = NGX_HTTP_V2_MAX_WINDOW - ctx->recv_window; | |
| 3908 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 3909 | |
| 3910 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
| 3911 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
| 3912 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
| 3913 *cl->buf->last++ = (u_char) (n & 0xff); | |
| 3914 | |
| 3915 *ll = cl; | |
| 3916 | |
| 3917 return NGX_OK; | |
| 3918 } | |
| 3919 | |
| 3920 | |
| 3921 static ngx_chain_t * | |
| 3922 ngx_http_grpc_get_buf(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
| 3923 { | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
3924 u_char *start; |
| 7233 | 3925 ngx_buf_t *b; |
| 3926 ngx_chain_t *cl; | |
| 3927 | |
| 3928 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
| 3929 if (cl == NULL) { | |
| 3930 return NULL; | |
| 3931 } | |
| 3932 | |
| 3933 b = cl->buf; | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
3934 start = b->start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
3935 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
3936 if (start == NULL) { |
| 7233 | 3937 |
| 3938 /* | |
| 3939 * each buffer is large enough to hold two window update | |
| 3940 * frames in a row | |
| 3941 */ | |
| 3942 | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
3943 start = ngx_palloc(r->pool, 2 * sizeof(ngx_http_grpc_frame_t) + 8); |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
3944 if (start == NULL) { |
| 7233 | 3945 return NULL; |
| 3946 } | |
| 3947 | |
| 3948 } | |
| 3949 | |
|
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
3950 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
|
3951 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
3952 b->start = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
3953 b->pos = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
3954 b->last = start; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
3955 b->end = start + 2 * sizeof(ngx_http_grpc_frame_t) + 8; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
3956 |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
3957 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
3958 b->temporary = 1; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
3959 b->flush = 1; |
|
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
3960 |
| 7233 | 3961 return cl; |
| 3962 } | |
| 3963 | |
| 3964 | |
| 3965 static ngx_http_grpc_ctx_t * | |
| 3966 ngx_http_grpc_get_ctx(ngx_http_request_t *r) | |
| 3967 { | |
| 3968 ngx_http_grpc_ctx_t *ctx; | |
| 3969 ngx_http_upstream_t *u; | |
| 3970 | |
| 3971 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
| 3972 | |
| 3973 if (ctx->connection == NULL) { | |
| 3974 u = r->upstream; | |
| 3975 | |
| 3976 if (ngx_http_grpc_get_connection_data(r, ctx, &u->peer) != NGX_OK) { | |
| 3977 return NULL; | |
| 3978 } | |
| 3979 } | |
| 3980 | |
| 3981 return ctx; | |
| 3982 } | |
| 3983 | |
| 3984 | |
| 3985 static ngx_int_t | |
| 3986 ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
| 3987 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc) | |
| 3988 { | |
| 3989 ngx_connection_t *c; | |
| 3990 ngx_pool_cleanup_t *cln; | |
| 3991 | |
| 3992 c = pc->connection; | |
| 3993 | |
| 3994 if (pc->cached) { | |
| 3995 | |
| 3996 /* | |
| 3997 * for cached connections, connection data can be found | |
| 3998 * in the cleanup handler | |
| 3999 */ | |
| 4000 | |
| 4001 for (cln = c->pool->cleanup; cln; cln = cln->next) { | |
| 4002 if (cln->handler == ngx_http_grpc_cleanup) { | |
| 4003 ctx->connection = cln->data; | |
| 4004 break; | |
| 4005 } | |
| 4006 } | |
| 4007 | |
| 4008 if (ctx->connection == NULL) { | |
| 4009 ngx_log_error(NGX_LOG_ERR, c->log, 0, | |
| 4010 "no connection data found for " | |
| 4011 "keepalive http2 connection"); | |
| 4012 return NGX_ERROR; | |
| 4013 } | |
| 4014 | |
| 4015 ctx->send_window = ctx->connection->init_window; | |
| 4016 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4017 | |
| 4018 ctx->connection->last_stream_id += 2; | |
| 4019 ctx->id = ctx->connection->last_stream_id; | |
| 4020 | |
| 4021 return NGX_OK; | |
| 4022 } | |
| 4023 | |
| 4024 cln = ngx_pool_cleanup_add(c->pool, sizeof(ngx_http_grpc_conn_t)); | |
| 4025 if (cln == NULL) { | |
| 4026 return NGX_ERROR; | |
| 4027 } | |
| 4028 | |
| 4029 cln->handler = ngx_http_grpc_cleanup; | |
| 4030 ctx->connection = cln->data; | |
| 4031 | |
| 4032 ctx->connection->init_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4033 ctx->connection->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4034 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4035 | |
| 4036 ctx->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
| 4037 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
| 4038 | |
| 4039 ctx->id = 1; | |
| 4040 ctx->connection->last_stream_id = 1; | |
| 4041 | |
| 4042 return NGX_OK; | |
| 4043 } | |
| 4044 | |
| 4045 | |
| 4046 static void | |
| 4047 ngx_http_grpc_cleanup(void *data) | |
| 4048 { | |
| 4049 #if 0 | |
| 4050 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
| 4051 "grpc cleanup"); | |
| 4052 #endif | |
| 4053 return; | |
| 4054 } | |
| 4055 | |
| 4056 | |
| 4057 static void | |
| 4058 ngx_http_grpc_abort_request(ngx_http_request_t *r) | |
| 4059 { | |
| 4060 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4061 "abort grpc request"); | |
| 4062 return; | |
| 4063 } | |
| 4064 | |
| 4065 | |
| 4066 static void | |
| 4067 ngx_http_grpc_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
| 4068 { | |
| 4069 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 4070 "finalize grpc request"); | |
| 4071 return; | |
| 4072 } | |
| 4073 | |
| 4074 | |
|
7234
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4075 static ngx_int_t |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4076 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
|
4077 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
|
4078 { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4079 ngx_table_elt_t *te; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4080 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4081 te = r->headers_in.te; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4082 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4083 if (te == NULL) { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4084 v->not_found = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4085 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4086 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4087 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4088 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
|
4089 (u_char *) "trailers", 8 - 1) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4090 == NULL) |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4091 { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4092 v->not_found = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4093 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4094 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4095 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4096 v->valid = 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4097 v->no_cacheable = 0; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4098 v->not_found = 0; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4099 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4100 v->data = (u_char *) "trailers"; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4101 v->len = sizeof("trailers") - 1; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4102 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4103 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4104 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4105 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4106 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4107 static ngx_int_t |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4108 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
|
4109 { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4110 ngx_http_variable_t *var, *v; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4111 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4112 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
|
4113 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
|
4114 if (var == NULL) { |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4115 return NGX_ERROR; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4116 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4117 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4118 var->get_handler = v->get_handler; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4119 var->data = v->data; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4120 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4121 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4122 return NGX_OK; |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4123 } |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4124 |
|
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4125 |
| 7233 | 4126 static void * |
| 4127 ngx_http_grpc_create_loc_conf(ngx_conf_t *cf) | |
| 4128 { | |
| 4129 ngx_http_grpc_loc_conf_t *conf; | |
| 4130 | |
| 4131 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_grpc_loc_conf_t)); | |
| 4132 if (conf == NULL) { | |
| 4133 return NULL; | |
| 4134 } | |
| 4135 | |
| 4136 /* | |
| 4137 * set by ngx_pcalloc(): | |
| 4138 * | |
| 4139 * conf->upstream.ignore_headers = 0; | |
| 4140 * conf->upstream.next_upstream = 0; | |
| 4141 * conf->upstream.hide_headers_hash = { NULL, 0 }; | |
| 4142 * conf->upstream.ssl_name = NULL; | |
| 4143 * | |
| 4144 * conf->headers_source = NULL; | |
| 4145 * conf->headers.lengths = NULL; | |
| 4146 * conf->headers.values = NULL; | |
| 4147 * conf->headers.hash = { NULL, 0 }; | |
| 4148 * conf->host = { 0, NULL }; | |
| 4149 * conf->host_set = 0; | |
| 4150 * conf->ssl = 0; | |
| 4151 * conf->ssl_protocols = 0; | |
| 4152 * conf->ssl_ciphers = { 0, NULL }; | |
| 4153 * conf->ssl_trusted_certificate = { 0, NULL }; | |
| 4154 * conf->ssl_crl = { 0, NULL }; | |
| 4155 * conf->ssl_certificate = { 0, NULL }; | |
| 4156 * conf->ssl_certificate_key = { 0, NULL }; | |
| 4157 */ | |
| 4158 | |
| 4159 conf->upstream.local = NGX_CONF_UNSET_PTR; | |
|
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4160 conf->upstream.socket_keepalive = NGX_CONF_UNSET; |
| 7233 | 4161 conf->upstream.next_upstream_tries = NGX_CONF_UNSET_UINT; |
| 4162 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; | |
| 4163 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
| 4164 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
| 4165 conf->upstream.next_upstream_timeout = NGX_CONF_UNSET_MSEC; | |
| 4166 | |
| 4167 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
| 4168 | |
| 4169 conf->upstream.hide_headers = NGX_CONF_UNSET_PTR; | |
| 4170 conf->upstream.pass_headers = NGX_CONF_UNSET_PTR; | |
| 4171 | |
| 4172 conf->upstream.intercept_errors = NGX_CONF_UNSET; | |
| 4173 | |
| 4174 #if (NGX_HTTP_SSL) | |
| 4175 conf->upstream.ssl_session_reuse = NGX_CONF_UNSET; | |
| 4176 conf->upstream.ssl_server_name = NGX_CONF_UNSET; | |
| 4177 conf->upstream.ssl_verify = NGX_CONF_UNSET; | |
| 4178 conf->ssl_verify_depth = NGX_CONF_UNSET_UINT; | |
| 4179 conf->ssl_passwords = NGX_CONF_UNSET_PTR; | |
| 4180 #endif | |
| 4181 | |
| 4182 /* the hardcoded values */ | |
| 4183 conf->upstream.cyclic_temp_file = 0; | |
| 4184 conf->upstream.buffering = 0; | |
| 4185 conf->upstream.ignore_client_abort = 0; | |
| 4186 conf->upstream.send_lowat = 0; | |
| 4187 conf->upstream.bufs.num = 0; | |
| 4188 conf->upstream.busy_buffers_size = 0; | |
| 4189 conf->upstream.max_temp_file_size = 0; | |
| 4190 conf->upstream.temp_file_write_size = 0; | |
| 4191 conf->upstream.pass_request_headers = 1; | |
| 4192 conf->upstream.pass_request_body = 1; | |
| 4193 conf->upstream.force_ranges = 0; | |
| 4194 conf->upstream.pass_trailers = 1; | |
| 4195 conf->upstream.preserve_output = 1; | |
| 4196 | |
| 4197 ngx_str_set(&conf->upstream.module, "grpc"); | |
| 4198 | |
| 4199 return conf; | |
| 4200 } | |
| 4201 | |
| 4202 | |
| 4203 static char * | |
| 4204 ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 4205 { | |
| 4206 ngx_http_grpc_loc_conf_t *prev = parent; | |
| 4207 ngx_http_grpc_loc_conf_t *conf = child; | |
| 4208 | |
| 4209 ngx_int_t rc; | |
| 4210 ngx_hash_init_t hash; | |
| 4211 ngx_http_core_loc_conf_t *clcf; | |
| 4212 | |
| 4213 ngx_conf_merge_ptr_value(conf->upstream.local, | |
| 4214 prev->upstream.local, NULL); | |
| 4215 | |
|
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4216 ngx_conf_merge_value(conf->upstream.socket_keepalive, |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4217 prev->upstream.socket_keepalive, 0); |
|
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4218 |
| 7233 | 4219 ngx_conf_merge_uint_value(conf->upstream.next_upstream_tries, |
| 4220 prev->upstream.next_upstream_tries, 0); | |
| 4221 | |
| 4222 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, | |
| 4223 prev->upstream.connect_timeout, 60000); | |
| 4224 | |
| 4225 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
| 4226 prev->upstream.send_timeout, 60000); | |
| 4227 | |
| 4228 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
| 4229 prev->upstream.read_timeout, 60000); | |
| 4230 | |
| 4231 ngx_conf_merge_msec_value(conf->upstream.next_upstream_timeout, | |
| 4232 prev->upstream.next_upstream_timeout, 0); | |
| 4233 | |
| 4234 ngx_conf_merge_size_value(conf->upstream.buffer_size, | |
| 4235 prev->upstream.buffer_size, | |
| 4236 (size_t) ngx_pagesize); | |
| 4237 | |
| 4238 ngx_conf_merge_bitmask_value(conf->upstream.ignore_headers, | |
| 4239 prev->upstream.ignore_headers, | |
| 4240 NGX_CONF_BITMASK_SET); | |
| 4241 | |
| 4242 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
| 4243 prev->upstream.next_upstream, | |
| 4244 (NGX_CONF_BITMASK_SET | |
| 4245 |NGX_HTTP_UPSTREAM_FT_ERROR | |
| 4246 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
| 4247 | |
| 4248 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { | |
| 4249 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
| 4250 |NGX_HTTP_UPSTREAM_FT_OFF; | |
| 4251 } | |
| 4252 | |
| 4253 ngx_conf_merge_value(conf->upstream.intercept_errors, | |
| 4254 prev->upstream.intercept_errors, 0); | |
| 4255 | |
| 4256 #if (NGX_HTTP_SSL) | |
| 4257 | |
| 4258 ngx_conf_merge_value(conf->upstream.ssl_session_reuse, | |
| 4259 prev->upstream.ssl_session_reuse, 1); | |
| 4260 | |
| 4261 ngx_conf_merge_bitmask_value(conf->ssl_protocols, prev->ssl_protocols, | |
| 4262 (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1 | |
| 4263 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); | |
| 4264 | |
| 4265 ngx_conf_merge_str_value(conf->ssl_ciphers, prev->ssl_ciphers, | |
| 4266 "DEFAULT"); | |
| 4267 | |
| 4268 if (conf->upstream.ssl_name == NULL) { | |
| 4269 conf->upstream.ssl_name = prev->upstream.ssl_name; | |
| 4270 } | |
| 4271 | |
| 4272 ngx_conf_merge_value(conf->upstream.ssl_server_name, | |
| 4273 prev->upstream.ssl_server_name, 0); | |
| 4274 ngx_conf_merge_value(conf->upstream.ssl_verify, | |
| 4275 prev->upstream.ssl_verify, 0); | |
| 4276 ngx_conf_merge_uint_value(conf->ssl_verify_depth, | |
| 4277 prev->ssl_verify_depth, 1); | |
| 4278 ngx_conf_merge_str_value(conf->ssl_trusted_certificate, | |
| 4279 prev->ssl_trusted_certificate, ""); | |
| 4280 ngx_conf_merge_str_value(conf->ssl_crl, prev->ssl_crl, ""); | |
| 4281 | |
| 4282 ngx_conf_merge_str_value(conf->ssl_certificate, | |
| 4283 prev->ssl_certificate, ""); | |
| 4284 ngx_conf_merge_str_value(conf->ssl_certificate_key, | |
| 4285 prev->ssl_certificate_key, ""); | |
| 4286 ngx_conf_merge_ptr_value(conf->ssl_passwords, prev->ssl_passwords, NULL); | |
| 4287 | |
| 4288 if (conf->ssl && ngx_http_grpc_set_ssl(cf, conf) != NGX_OK) { | |
| 4289 return NGX_CONF_ERROR; | |
| 4290 } | |
| 4291 | |
| 4292 #endif | |
| 4293 | |
| 4294 hash.max_size = 512; | |
| 4295 hash.bucket_size = ngx_align(64, ngx_cacheline_size); | |
| 4296 hash.name = "grpc_headers_hash"; | |
| 4297 | |
| 4298 if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream, | |
| 4299 &prev->upstream, ngx_http_grpc_hide_headers, &hash) | |
| 4300 != NGX_OK) | |
| 4301 { | |
| 4302 return NGX_CONF_ERROR; | |
| 4303 } | |
| 4304 | |
| 4305 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
| 4306 | |
| 4307 if (clcf->noname && conf->upstream.upstream == NULL) { | |
| 4308 conf->upstream.upstream = prev->upstream.upstream; | |
| 4309 conf->host = prev->host; | |
| 4310 #if (NGX_HTTP_SSL) | |
| 4311 conf->upstream.ssl = prev->upstream.ssl; | |
| 4312 #endif | |
| 4313 } | |
| 4314 | |
| 4315 if (clcf->lmt_excpt && clcf->handler == NULL && conf->upstream.upstream) { | |
| 4316 clcf->handler = ngx_http_grpc_handler; | |
| 4317 } | |
| 4318 | |
| 4319 if (conf->headers_source == NULL) { | |
| 4320 conf->headers = prev->headers; | |
| 4321 conf->headers_source = prev->headers_source; | |
| 4322 conf->host_set = prev->host_set; | |
| 4323 } | |
| 4324 | |
| 4325 rc = ngx_http_grpc_init_headers(cf, conf, &conf->headers, | |
| 4326 ngx_http_grpc_headers); | |
| 4327 if (rc != NGX_OK) { | |
| 4328 return NGX_CONF_ERROR; | |
| 4329 } | |
| 4330 | |
| 4331 /* | |
| 4332 * special handling to preserve conf->headers in the "http" section | |
| 4333 * to inherit it to all servers | |
| 4334 */ | |
| 4335 | |
| 4336 if (prev->headers.hash.buckets == NULL | |
| 4337 && conf->headers_source == prev->headers_source) | |
| 4338 { | |
| 4339 prev->headers = conf->headers; | |
| 4340 prev->host_set = conf->host_set; | |
| 4341 } | |
| 4342 | |
| 4343 return NGX_CONF_OK; | |
| 4344 } | |
| 4345 | |
| 4346 | |
| 4347 static ngx_int_t | |
| 4348 ngx_http_grpc_init_headers(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *conf, | |
| 4349 ngx_http_grpc_headers_t *headers, ngx_keyval_t *default_headers) | |
| 4350 { | |
| 4351 u_char *p; | |
| 4352 size_t size; | |
| 4353 uintptr_t *code; | |
| 4354 ngx_uint_t i; | |
| 4355 ngx_array_t headers_names, headers_merged; | |
| 4356 ngx_keyval_t *src, *s, *h; | |
| 4357 ngx_hash_key_t *hk; | |
| 4358 ngx_hash_init_t hash; | |
| 4359 ngx_http_script_compile_t sc; | |
| 4360 ngx_http_script_copy_code_t *copy; | |
| 4361 | |
| 4362 if (headers->hash.buckets) { | |
| 4363 return NGX_OK; | |
| 4364 } | |
| 4365 | |
| 4366 if (ngx_array_init(&headers_names, cf->temp_pool, 4, sizeof(ngx_hash_key_t)) | |
| 4367 != NGX_OK) | |
| 4368 { | |
| 4369 return NGX_ERROR; | |
| 4370 } | |
| 4371 | |
| 4372 if (ngx_array_init(&headers_merged, cf->temp_pool, 4, sizeof(ngx_keyval_t)) | |
| 4373 != NGX_OK) | |
| 4374 { | |
| 4375 return NGX_ERROR; | |
| 4376 } | |
| 4377 | |
| 4378 headers->lengths = ngx_array_create(cf->pool, 64, 1); | |
| 4379 if (headers->lengths == NULL) { | |
| 4380 return NGX_ERROR; | |
| 4381 } | |
| 4382 | |
| 4383 headers->values = ngx_array_create(cf->pool, 512, 1); | |
| 4384 if (headers->values == NULL) { | |
| 4385 return NGX_ERROR; | |
| 4386 } | |
| 4387 | |
| 4388 if (conf->headers_source) { | |
| 4389 | |
| 4390 src = conf->headers_source->elts; | |
| 4391 for (i = 0; i < conf->headers_source->nelts; i++) { | |
| 4392 | |
| 4393 if (src[i].key.len == 4 | |
| 4394 && ngx_strncasecmp(src[i].key.data, (u_char *) "Host", 4) == 0) | |
| 4395 { | |
| 4396 conf->host_set = 1; | |
| 4397 } | |
| 4398 | |
| 4399 s = ngx_array_push(&headers_merged); | |
| 4400 if (s == NULL) { | |
| 4401 return NGX_ERROR; | |
| 4402 } | |
| 4403 | |
| 4404 *s = src[i]; | |
| 4405 } | |
| 4406 } | |
| 4407 | |
| 4408 h = default_headers; | |
| 4409 | |
| 4410 while (h->key.len) { | |
| 4411 | |
| 4412 src = headers_merged.elts; | |
| 4413 for (i = 0; i < headers_merged.nelts; i++) { | |
| 4414 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) { | |
| 4415 goto next; | |
| 4416 } | |
| 4417 } | |
| 4418 | |
| 4419 s = ngx_array_push(&headers_merged); | |
| 4420 if (s == NULL) { | |
| 4421 return NGX_ERROR; | |
| 4422 } | |
| 4423 | |
| 4424 *s = *h; | |
| 4425 | |
| 4426 next: | |
| 4427 | |
| 4428 h++; | |
| 4429 } | |
| 4430 | |
| 4431 | |
| 4432 src = headers_merged.elts; | |
| 4433 for (i = 0; i < headers_merged.nelts; i++) { | |
| 4434 | |
| 4435 hk = ngx_array_push(&headers_names); | |
| 4436 if (hk == NULL) { | |
| 4437 return NGX_ERROR; | |
| 4438 } | |
| 4439 | |
| 4440 hk->key = src[i].key; | |
| 4441 hk->key_hash = ngx_hash_key_lc(src[i].key.data, src[i].key.len); | |
| 4442 hk->value = (void *) 1; | |
| 4443 | |
| 4444 if (src[i].value.len == 0) { | |
| 4445 continue; | |
| 4446 } | |
| 4447 | |
| 4448 copy = ngx_array_push_n(headers->lengths, | |
| 4449 sizeof(ngx_http_script_copy_code_t)); | |
| 4450 if (copy == NULL) { | |
| 4451 return NGX_ERROR; | |
| 4452 } | |
| 4453 | |
|
7271
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
7249
diff
changeset
|
4454 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
|
4455 ngx_http_script_copy_len_code; |
| 7233 | 4456 copy->len = src[i].key.len; |
| 4457 | |
| 4458 size = (sizeof(ngx_http_script_copy_code_t) | |
| 4459 + src[i].key.len + sizeof(uintptr_t) - 1) | |
| 4460 & ~(sizeof(uintptr_t) - 1); | |
| 4461 | |
| 4462 copy = ngx_array_push_n(headers->values, size); | |
| 4463 if (copy == NULL) { | |
| 4464 return NGX_ERROR; | |
| 4465 } | |
| 4466 | |
| 4467 copy->code = ngx_http_script_copy_code; | |
| 4468 copy->len = src[i].key.len; | |
| 4469 | |
| 4470 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); | |
| 4471 ngx_memcpy(p, src[i].key.data, src[i].key.len); | |
| 4472 | |
| 4473 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
| 4474 | |
| 4475 sc.cf = cf; | |
| 4476 sc.source = &src[i].value; | |
| 4477 sc.flushes = &headers->flushes; | |
| 4478 sc.lengths = &headers->lengths; | |
| 4479 sc.values = &headers->values; | |
| 4480 | |
| 4481 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
| 4482 return NGX_ERROR; | |
| 4483 } | |
| 4484 | |
| 4485 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
| 4486 if (code == NULL) { | |
| 4487 return NGX_ERROR; | |
| 4488 } | |
| 4489 | |
| 4490 *code = (uintptr_t) NULL; | |
| 4491 | |
| 4492 code = ngx_array_push_n(headers->values, sizeof(uintptr_t)); | |
| 4493 if (code == NULL) { | |
| 4494 return NGX_ERROR; | |
| 4495 } | |
| 4496 | |
| 4497 *code = (uintptr_t) NULL; | |
| 4498 } | |
| 4499 | |
| 4500 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
| 4501 if (code == NULL) { | |
| 4502 return NGX_ERROR; | |
| 4503 } | |
| 4504 | |
| 4505 *code = (uintptr_t) NULL; | |
| 4506 | |
| 4507 | |
| 4508 hash.hash = &headers->hash; | |
| 4509 hash.key = ngx_hash_key_lc; | |
| 4510 hash.max_size = 512; | |
| 4511 hash.bucket_size = 64; | |
| 4512 hash.name = "grpc_headers_hash"; | |
| 4513 hash.pool = cf->pool; | |
| 4514 hash.temp_pool = NULL; | |
| 4515 | |
| 4516 return ngx_hash_init(&hash, headers_names.elts, headers_names.nelts); | |
| 4517 } | |
| 4518 | |
| 4519 | |
| 4520 static char * | |
| 4521 ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 4522 { | |
| 4523 ngx_http_grpc_loc_conf_t *glcf = conf; | |
| 4524 | |
| 4525 size_t add; | |
| 4526 ngx_str_t *value, *url; | |
| 4527 ngx_url_t u; | |
| 4528 ngx_http_core_loc_conf_t *clcf; | |
| 4529 | |
| 4530 if (glcf->upstream.upstream) { | |
| 4531 return "is duplicate"; | |
| 4532 } | |
| 4533 | |
| 4534 value = cf->args->elts; | |
| 4535 url = &value[1]; | |
| 4536 | |
| 4537 if (ngx_strncasecmp(url->data, (u_char *) "grpc://", 7) == 0) { | |
| 4538 add = 7; | |
| 4539 | |
| 4540 } else if (ngx_strncasecmp(url->data, (u_char *) "grpcs://", 8) == 0) { | |
| 4541 | |
| 4542 #if (NGX_HTTP_SSL) | |
| 4543 glcf->ssl = 1; | |
| 4544 | |
| 4545 add = 8; | |
| 4546 #else | |
| 4547 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 4548 "grpcs protocol requires SSL support"); | |
| 4549 return NGX_CONF_ERROR; | |
| 4550 #endif | |
| 4551 | |
| 4552 } else { | |
| 4553 add = 0; | |
| 4554 } | |
| 4555 | |
| 4556 ngx_memzero(&u, sizeof(ngx_url_t)); | |
| 4557 | |
| 4558 u.url.len = url->len - add; | |
| 4559 u.url.data = url->data + add; | |
| 4560 u.no_resolve = 1; | |
| 4561 | |
| 4562 glcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); | |
| 4563 if (glcf->upstream.upstream == NULL) { | |
| 4564 return NGX_CONF_ERROR; | |
| 4565 } | |
| 4566 | |
| 4567 if (u.family != AF_UNIX) { | |
| 4568 | |
| 4569 if (u.no_port) { | |
| 4570 glcf->host = u.host; | |
| 4571 | |
| 4572 } else { | |
| 4573 glcf->host.len = u.host.len + 1 + u.port_text.len; | |
| 4574 glcf->host.data = u.host.data; | |
| 4575 } | |
| 4576 | |
| 4577 } else { | |
| 4578 ngx_str_set(&glcf->host, "localhost"); | |
| 4579 } | |
| 4580 | |
| 4581 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
| 4582 | |
| 4583 clcf->handler = ngx_http_grpc_handler; | |
| 4584 | |
|
7321
45e513c3540d
Fixed invalid access to location defined as an empty string.
Ruslan Ermilov <ru@nginx.com>
parents:
7320
diff
changeset
|
4585 if (clcf->name.len && clcf->name.data[clcf->name.len - 1] == '/') { |
| 7233 | 4586 clcf->auto_redirect = 1; |
| 4587 } | |
| 4588 | |
| 4589 return NGX_CONF_OK; | |
| 4590 } | |
| 4591 | |
| 4592 | |
| 4593 #if (NGX_HTTP_SSL) | |
| 4594 | |
| 4595 static char * | |
| 4596 ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 4597 { | |
| 4598 ngx_http_grpc_loc_conf_t *glcf = conf; | |
| 4599 | |
| 4600 ngx_str_t *value; | |
| 4601 | |
| 4602 if (glcf->ssl_passwords != NGX_CONF_UNSET_PTR) { | |
| 4603 return "is duplicate"; | |
| 4604 } | |
| 4605 | |
| 4606 value = cf->args->elts; | |
| 4607 | |
| 4608 glcf->ssl_passwords = ngx_ssl_read_password_file(cf, &value[1]); | |
| 4609 | |
| 4610 if (glcf->ssl_passwords == NULL) { | |
| 4611 return NGX_CONF_ERROR; | |
| 4612 } | |
| 4613 | |
| 4614 return NGX_CONF_OK; | |
| 4615 } | |
| 4616 | |
| 4617 | |
| 4618 static ngx_int_t | |
| 4619 ngx_http_grpc_set_ssl(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *glcf) | |
| 4620 { | |
| 4621 ngx_pool_cleanup_t *cln; | |
| 4622 | |
| 4623 glcf->upstream.ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t)); | |
| 4624 if (glcf->upstream.ssl == NULL) { | |
| 4625 return NGX_ERROR; | |
| 4626 } | |
| 4627 | |
| 4628 glcf->upstream.ssl->log = cf->log; | |
| 4629 | |
| 4630 if (ngx_ssl_create(glcf->upstream.ssl, glcf->ssl_protocols, NULL) | |
| 4631 != NGX_OK) | |
| 4632 { | |
| 4633 return NGX_ERROR; | |
| 4634 } | |
| 4635 | |
| 4636 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
| 4637 if (cln == NULL) { | |
| 4638 return NGX_ERROR; | |
| 4639 } | |
| 4640 | |
| 4641 cln->handler = ngx_ssl_cleanup_ctx; | |
| 4642 cln->data = glcf->upstream.ssl; | |
| 4643 | |
| 4644 if (glcf->ssl_certificate.len) { | |
| 4645 | |
| 4646 if (glcf->ssl_certificate_key.len == 0) { | |
| 4647 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4648 "no \"grpc_ssl_certificate_key\" is defined " | |
| 4649 "for certificate \"%V\"", &glcf->ssl_certificate); | |
| 4650 return NGX_ERROR; | |
| 4651 } | |
| 4652 | |
| 4653 if (ngx_ssl_certificate(cf, glcf->upstream.ssl, &glcf->ssl_certificate, | |
| 4654 &glcf->ssl_certificate_key, glcf->ssl_passwords) | |
| 4655 != NGX_OK) | |
| 4656 { | |
| 4657 return NGX_ERROR; | |
| 4658 } | |
| 4659 } | |
| 4660 | |
| 4661 if (ngx_ssl_ciphers(cf, glcf->upstream.ssl, &glcf->ssl_ciphers, 0) | |
| 4662 != NGX_OK) | |
| 4663 { | |
| 4664 return NGX_ERROR; | |
| 4665 } | |
| 4666 | |
| 4667 if (glcf->upstream.ssl_verify) { | |
| 4668 if (glcf->ssl_trusted_certificate.len == 0) { | |
| 4669 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4670 "no grpc_ssl_trusted_certificate for grpc_ssl_verify"); | |
| 4671 return NGX_ERROR; | |
| 4672 } | |
| 4673 | |
| 4674 if (ngx_ssl_trusted_certificate(cf, glcf->upstream.ssl, | |
| 4675 &glcf->ssl_trusted_certificate, | |
| 4676 glcf->ssl_verify_depth) | |
| 4677 != NGX_OK) | |
| 4678 { | |
| 4679 return NGX_ERROR; | |
| 4680 } | |
| 4681 | |
| 4682 if (ngx_ssl_crl(cf, glcf->upstream.ssl, &glcf->ssl_crl) != NGX_OK) { | |
| 4683 return NGX_ERROR; | |
| 4684 } | |
| 4685 } | |
| 4686 | |
|
7320
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4687 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
|
4688 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
|
4689 != NGX_OK) |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4690 { |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4691 return NGX_ERROR; |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4692 } |
|
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4693 |
| 7233 | 4694 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
| 4695 | |
| 4696 if (SSL_CTX_set_alpn_protos(glcf->upstream.ssl->ctx, | |
| 4697 (u_char *) "\x02h2", 3) | |
| 4698 != 0) | |
| 4699 { | |
| 4700 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
| 4701 "SSL_CTX_set_alpn_protos() failed"); | |
| 4702 return NGX_ERROR; | |
| 4703 } | |
| 4704 | |
| 4705 #endif | |
| 4706 | |
| 4707 return NGX_OK; | |
| 4708 } | |
| 4709 | |
| 4710 #endif |