nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 1 | /* |
| 2 | * |
Craig Tiller | 8a9fd52 | 2016-03-25 17:09:29 -0700 | [diff] [blame] | 3 | * Copyright 2015-2016, Google Inc. |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions are |
| 8 | * met: |
| 9 | * |
| 10 | * * Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * * Redistributions in binary form must reproduce the above |
| 13 | * copyright notice, this list of conditions and the following disclaimer |
| 14 | * in the documentation and/or other materials provided with the |
| 15 | * distribution. |
| 16 | * * Neither the name of Google Inc. nor the names of its |
| 17 | * contributors may be used to endorse or promote products derived from |
| 18 | * this software without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 30 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | * |
| 32 | */ |
| 33 | |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 34 | #include "src/core/lib/transport/chttp2/alpn.h" |
ctiller | 48b5a45 | 2014-12-10 08:43:47 -0800 | [diff] [blame] | 35 | #include <grpc/support/log.h> |
| 36 | #include <grpc/support/useful.h> |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 37 | |
ctiller | 48b5a45 | 2014-12-10 08:43:47 -0800 | [diff] [blame] | 38 | /* in order of preference */ |
Craig Tiller | 2fc2a16 | 2015-07-31 13:51:48 -0700 | [diff] [blame] | 39 | static const char *const supported_versions[] = {"h2"}; |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 40 | |
| 41 | int grpc_chttp2_is_alpn_version_supported(const char *version, size_t size) { |
| 42 | size_t i; |
ctiller | 48b5a45 | 2014-12-10 08:43:47 -0800 | [diff] [blame] | 43 | for (i = 0; i < GPR_ARRAY_SIZE(supported_versions); i++) { |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 44 | if (!strncmp(version, supported_versions[i], size)) return 1; |
| 45 | } |
| 46 | return 0; |
| 47 | } |
ctiller | 48b5a45 | 2014-12-10 08:43:47 -0800 | [diff] [blame] | 48 | |
Craig Tiller | 32946d3 | 2015-01-15 11:37:30 -0800 | [diff] [blame] | 49 | size_t grpc_chttp2_num_alpn_versions(void) { |
ctiller | 48b5a45 | 2014-12-10 08:43:47 -0800 | [diff] [blame] | 50 | return GPR_ARRAY_SIZE(supported_versions); |
| 51 | } |
| 52 | |
| 53 | const char *grpc_chttp2_get_alpn_version_index(size_t i) { |
| 54 | GPR_ASSERT(i < GPR_ARRAY_SIZE(supported_versions)); |
| 55 | return supported_versions[i]; |
Craig Tiller | 190d360 | 2015-02-18 09:23:38 -0800 | [diff] [blame] | 56 | } |