/* * * Copyright 2015, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #include "test/core/bad_client/bad_client.h" #include #include #include #include "src/core/lib/support/string.h" #include "src/core/lib/surface/server.h" #include "test/core/end2end/cq_verifier.h" // The large-metadata headers that we're adding for this test are not // actually appended to this in a single string, since the string would // be longer than the C99 string literal limit. Instead, we dynamically // construct it by adding the large headers one at a time. #define PFX_TOO_MUCH_METADATA_FROM_CLIENT_PREFIX_STR \ "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" /* settings frame */ \ "\x00\x00\x00\x04\x00\x00\x00\x00\x00" /* headers: generated from \ large_metadata.headers in this \ directory */ \ "\x00" \ "5{\x01\x05\x00\x00\x00\x01" \ "\x10\x05:path\x08/foo/bar" \ "\x10\x07:scheme\x04http" \ "\x10\x07:method\x04POST" \ "\x10\x0a:authority\x09localhost" \ "\x10\x0c" \ "content-type\x10" \ "application/grpc" \ "\x10\x14grpc-accept-encoding\x15identity,deflate,gzip" \ "\x10\x02te\x08trailers" \ "\x10\x0auser-agent\"bad-client grpc-c/0.12.0.0 (linux)" // Each large-metadata header is constructed from these start and end // strings, with a two-digit number in between. #define PFX_TOO_MUCH_METADATA_FROM_CLIENT_HEADER_START_STR "\x10\x0duser-header" #define PFX_TOO_MUCH_METADATA_FROM_CLIENT_HEADER_END_STR \ "~aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" \ "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" // The size of each large-metadata header string. #define PFX_TOO_MUCH_METADATA_FROM_CLIENT_HEADER_SIZE \ ((sizeof(PFX_TOO_MUCH_METADATA_FROM_CLIENT_HEADER_START_STR) - 1) + 2 + \ (sizeof(PFX_TOO_MUCH_METADATA_FROM_CLIENT_HEADER_END_STR) - 1)) // The number of headers we're adding and the total size of the client // payload. #define NUM_HEADERS 95 #define PFX_TOO_MUCH_METADATA_FROM_CLIENT_PAYLOAD_SIZE \ ((sizeof(PFX_TOO_MUCH_METADATA_FROM_CLIENT_PREFIX_STR) - 1) + \ (NUM_HEADERS * PFX_TOO_MUCH_METADATA_FROM_CLIENT_HEADER_SIZE) + 1) #define PFX_TOO_MUCH_METADATA_FROM_SERVER_STR \ "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" /* settings frame: sets \ MAX_HEADER_LIST_SIZE to 16K */ \ "\x00\x00\x06\x04\x00\x00\x00\x00\x00\x00\x06\x00\x00\x40\x00" /* headers: \ generated \ from \ simple_request.headers \ in this \ directory \ */ \ "\x00\x00\xc9\x01\x04\x00\x00\x00\x01" \ "\x10\x05:path\x08/foo/bar" \ "\x10\x07:scheme\x04http" \ "\x10\x07:method\x04POST" \ "\x10\x0a:authority\x09localhost" \ "\x10\x0c" \ "content-type\x10" \ "application/grpc" \ "\x10\x14grpc-accept-encoding\x15" \ "deflate,identity,gzip" \ "\x10\x02te\x08trailers" \ "\x10\x0auser-agent\"bad-client grpc-c/0.12.0.0 (linux)" static void *tag(intptr_t t) { return (void *)t; } static void server_verifier(grpc_server *server, grpc_completion_queue *cq, void *registered_method) { grpc_call_error error; grpc_call *s; grpc_call_details call_details; cq_verifier *cqv = cq_verifier_create(cq); grpc_metadata_array request_metadata_recv; grpc_call_details_init(&call_details); grpc_metadata_array_init(&request_metadata_recv); error = grpc_server_request_call(server, &s, &call_details, &request_metadata_recv, cq, cq, tag(101)); GPR_ASSERT(GRPC_CALL_OK == error); cq_expect_completion(cqv, tag(101), 1); cq_verify(cqv); GPR_ASSERT(0 == strcmp(call_details.host, "localhost")); GPR_ASSERT(0 == strcmp(call_details.method, "/foo/bar")); grpc_metadata_array_destroy(&request_metadata_recv); grpc_call_details_destroy(&call_details); grpc_call_destroy(s); cq_verifier_destroy(cqv); } static void server_verifier_sends_too_much_metadata(grpc_server *server, grpc_completion_queue *cq, void *registered_method) { grpc_call_error error; grpc_call *s; grpc_call_details call_details; cq_verifier *cqv = cq_verifier_create(cq); grpc_metadata_array request_metadata_recv; grpc_call_details_init(&call_details); grpc_metadata_array_init(&request_metadata_recv); error = grpc_server_request_call(server, &s, &call_details, &request_metadata_recv, cq, cq, tag(101)); GPR_ASSERT(GRPC_CALL_OK == error); cq_expect_completion(cqv, tag(101), 1); cq_verify(cqv); GPR_ASSERT(0 == strcmp(call_details.host, "localhost")); GPR_ASSERT(0 == strcmp(call_details.method, "/foo/bar")); const size_t metadata_value_size = 16 * 1024; grpc_metadata meta; meta.key = "key"; meta.value = gpr_malloc(metadata_value_size + 1); memset((char *)meta.value, 'a', metadata_value_size); ((char *)meta.value)[metadata_value_size] = 0; meta.value_length = metadata_value_size; grpc_op op; memset(&op, 0, sizeof(op)); op.op = GRPC_OP_SEND_INITIAL_METADATA; op.data.send_initial_metadata.count = 1; op.data.send_initial_metadata.metadata = &meta; op.flags = 0; op.reserved = NULL; error = grpc_call_start_batch(s, &op, 1, tag(102), NULL); GPR_ASSERT(GRPC_CALL_OK == error); cq_expect_completion(cqv, tag(102), 0); // Operation fails. cq_verify(cqv); gpr_free((char *)meta.value); grpc_metadata_array_destroy(&request_metadata_recv); grpc_call_details_destroy(&call_details); grpc_call_destroy(s); cq_verifier_destroy(cqv); } static void client_validator(gpr_slice_buffer *incoming) { // Get last frame from incoming slice buffer. gpr_slice_buffer last_frame_buffer; gpr_slice_buffer_init(&last_frame_buffer); gpr_slice_buffer_trim_end(incoming, 13, &last_frame_buffer); GPR_ASSERT(last_frame_buffer.count == 1); gpr_slice last_frame = last_frame_buffer.slices[0]; // Construct expected frame. gpr_slice expected = gpr_slice_malloc(13); uint8_t *p = GPR_SLICE_START_PTR(expected); // Length. *p++ = 0; *p++ = 0; *p++ = 4; // Frame type (RST_STREAM). *p++ = 3; // Flags. *p++ = 0; // Stream ID. *p++ = 0; *p++ = 0; *p++ = 0; *p++ = 1; // Payload (error code). *p++ = 0; *p++ = 0; *p++ = 0; *p++ = 11; // Compare actual and expected. GPR_ASSERT(gpr_slice_cmp(last_frame, expected) == 0); gpr_slice_buffer_destroy(&last_frame_buffer); } int main(int argc, char **argv) { grpc_test_init(argc, argv); // Test sending more metadata than the server will accept. gpr_strvec headers; gpr_strvec_init(&headers); for (int i = 0; i < NUM_HEADERS; ++i) { char *str; gpr_asprintf(&str, "%s%02d%s", PFX_TOO_MUCH_METADATA_FROM_CLIENT_HEADER_START_STR, i, PFX_TOO_MUCH_METADATA_FROM_CLIENT_HEADER_END_STR); gpr_strvec_add(&headers, str); } size_t headers_len; const char *client_headers = gpr_strvec_flatten(&headers, &headers_len); gpr_strvec_destroy(&headers); char client_payload[PFX_TOO_MUCH_METADATA_FROM_CLIENT_PAYLOAD_SIZE] = PFX_TOO_MUCH_METADATA_FROM_CLIENT_PREFIX_STR; memcpy( client_payload + sizeof(PFX_TOO_MUCH_METADATA_FROM_CLIENT_PREFIX_STR) - 1, client_headers, headers_len); GRPC_RUN_BAD_CLIENT_TEST(server_verifier, client_validator, client_payload, 0); gpr_free((void *)client_headers); // Test sending more metadata than the client will accept. GRPC_RUN_BAD_CLIENT_TEST(server_verifier_sends_too_much_metadata, client_validator, PFX_TOO_MUCH_METADATA_FROM_SERVER_STR, 0); return 0; }