Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 1 | /* |
| 2 | * |
Jan Tattermusch | 7897ae9 | 2017-06-07 22:57:36 +0200 | [diff] [blame] | 3 | * Copyright 2015 gRPC authors. |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 4 | * |
Jan Tattermusch | 7897ae9 | 2017-06-07 22:57:36 +0200 | [diff] [blame] | 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 8 | * |
Jan Tattermusch | 7897ae9 | 2017-06-07 22:57:36 +0200 | [diff] [blame] | 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 10 | * |
Jan Tattermusch | 7897ae9 | 2017-06-07 22:57:36 +0200 | [diff] [blame] | 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 16 | * |
| 17 | */ |
| 18 | |
Alexander Polcyn | db3e898 | 2018-02-21 16:59:24 -0800 | [diff] [blame] | 19 | #include <grpc/support/port_platform.h> |
| 20 | |
murgatroid99 | 5407089 | 2016-08-08 17:01:18 -0700 | [diff] [blame] | 21 | #include "src/core/lib/iomgr/port.h" |
murgatroid99 | 623dd4f | 2016-08-08 17:31:27 -0700 | [diff] [blame] | 22 | #ifdef GRPC_WINSOCK_SOCKET |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 23 | |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 24 | #include "src/core/lib/iomgr/sockaddr.h" |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 25 | |
murgatroid99 | 7871f73 | 2016-09-23 13:49:05 -0700 | [diff] [blame] | 26 | #include "src/core/lib/iomgr/resolve_address.h" |
| 27 | |
Yash Tibrewal | fcd26bc | 2017-09-25 15:08:28 -0700 | [diff] [blame] | 28 | #include <inttypes.h> |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 29 | #include <string.h> |
Craig Tiller | e1e4559 | 2016-03-11 08:01:58 -0800 | [diff] [blame] | 30 | #include <sys/types.h> |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 31 | |
| 32 | #include <grpc/support/alloc.h> |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 33 | #include <grpc/support/log.h> |
Yuchen Zeng | 12dfdc3 | 2016-04-26 22:05:41 -0700 | [diff] [blame] | 34 | #include <grpc/support/log_windows.h> |
Masood Malekghassemi | 701af60 | 2015-06-03 15:01:17 -0700 | [diff] [blame] | 35 | #include <grpc/support/string_util.h> |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 36 | #include <grpc/support/time.h> |
Vijay Pai | ae376bf | 2018-01-25 22:54:02 -0800 | [diff] [blame] | 37 | |
| 38 | #include "src/core/lib/gpr/host_port.h" |
Mark D. Roth | dbdf495 | 2018-01-18 11:21:12 -0800 | [diff] [blame] | 39 | #include "src/core/lib/gpr/string.h" |
Vijay Pai | da69355 | 2018-02-16 22:59:03 -0800 | [diff] [blame] | 40 | #include "src/core/lib/gprpp/thd.h" |
Craig Tiller | 6b7c1fb | 2017-07-19 15:45:03 -0700 | [diff] [blame] | 41 | #include "src/core/lib/iomgr/block_annotate.h" |
Craig Tiller | 9533d04 | 2016-03-25 17:11:06 -0700 | [diff] [blame] | 42 | #include "src/core/lib/iomgr/executor.h" |
| 43 | #include "src/core/lib/iomgr/iomgr_internal.h" |
| 44 | #include "src/core/lib/iomgr/sockaddr_utils.h" |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 45 | |
| 46 | typedef struct { |
Craig Tiller | baa14a9 | 2017-11-03 09:09:36 -0700 | [diff] [blame] | 47 | char* name; |
| 48 | char* default_port; |
David Garcia Quintas | 706b70f | 2015-10-13 11:19:49 -0700 | [diff] [blame] | 49 | grpc_closure request_closure; |
Craig Tiller | baa14a9 | 2017-11-03 09:09:36 -0700 | [diff] [blame] | 50 | grpc_closure* on_done; |
| 51 | grpc_resolved_addresses** addresses; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 52 | } request; |
| 53 | |
kpayson64 | 539f506 | 2018-03-12 19:16:30 -0700 | [diff] [blame] | 54 | static grpc_error* windows_blocking_resolve_address( |
Craig Tiller | baa14a9 | 2017-11-03 09:09:36 -0700 | [diff] [blame] | 55 | const char* name, const char* default_port, |
| 56 | grpc_resolved_addresses** addresses) { |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 57 | grpc_core::ExecCtx exec_ctx; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 58 | struct addrinfo hints; |
| 59 | struct addrinfo *result = NULL, *resp; |
Craig Tiller | baa14a9 | 2017-11-03 09:09:36 -0700 | [diff] [blame] | 60 | char* host; |
| 61 | char* port; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 62 | int s; |
| 63 | size_t i; |
Craig Tiller | baa14a9 | 2017-11-03 09:09:36 -0700 | [diff] [blame] | 64 | grpc_error* error = GRPC_ERROR_NONE; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 65 | |
| 66 | /* parse name, splitting it into host and port parts */ |
Nicolas "Pixel" Noble | 589cba2 | 2015-02-20 22:58:54 -0800 | [diff] [blame] | 67 | gpr_split_host_port(name, &host, &port); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 68 | if (host == NULL) { |
Craig Tiller | baa14a9 | 2017-11-03 09:09:36 -0700 | [diff] [blame] | 69 | char* msg; |
Craig Tiller | a41ac57 | 2016-05-17 16:08:17 -0700 | [diff] [blame] | 70 | gpr_asprintf(&msg, "unparseable host:port: '%s'", name); |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 71 | error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); |
Craig Tiller | a41ac57 | 2016-05-17 16:08:17 -0700 | [diff] [blame] | 72 | gpr_free(msg); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 73 | goto done; |
| 74 | } |
| 75 | if (port == NULL) { |
| 76 | if (default_port == NULL) { |
Craig Tiller | baa14a9 | 2017-11-03 09:09:36 -0700 | [diff] [blame] | 77 | char* msg; |
Craig Tiller | a41ac57 | 2016-05-17 16:08:17 -0700 | [diff] [blame] | 78 | gpr_asprintf(&msg, "no port in name '%s'", name); |
ncteisen | 4b36a3d | 2017-03-13 19:08:06 -0700 | [diff] [blame] | 79 | error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); |
Craig Tiller | a41ac57 | 2016-05-17 16:08:17 -0700 | [diff] [blame] | 80 | gpr_free(msg); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 81 | goto done; |
| 82 | } |
| 83 | port = gpr_strdup(default_port); |
| 84 | } |
| 85 | |
| 86 | /* Call getaddrinfo */ |
| 87 | memset(&hints, 0, sizeof(hints)); |
| 88 | hints.ai_family = AF_UNSPEC; /* ipv4 or ipv6 */ |
| 89 | hints.ai_socktype = SOCK_STREAM; /* stream socket */ |
| 90 | hints.ai_flags = AI_PASSIVE; /* for wildcard IP address */ |
| 91 | |
vjpai | 9839d28 | 2015-09-24 17:55:18 -0700 | [diff] [blame] | 92 | GRPC_SCHEDULING_START_BLOCKING_REGION; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 93 | s = getaddrinfo(host, port, &hints, &result); |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 94 | GRPC_SCHEDULING_END_BLOCKING_REGION; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 95 | if (s != 0) { |
Craig Tiller | e451225 | 2016-05-17 16:30:33 -0700 | [diff] [blame] | 96 | error = GRPC_WSA_ERROR(WSAGetLastError(), "getaddrinfo"); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 97 | goto done; |
| 98 | } |
| 99 | |
| 100 | /* Success path: set addrs non-NULL, fill it in */ |
Yash Tibrewal | d8b84a2 | 2017-09-25 13:38:03 -0700 | [diff] [blame] | 101 | (*addresses) = |
Craig Tiller | baa14a9 | 2017-11-03 09:09:36 -0700 | [diff] [blame] | 102 | (grpc_resolved_addresses*)gpr_malloc(sizeof(grpc_resolved_addresses)); |
Craig Tiller | a41ac57 | 2016-05-17 16:08:17 -0700 | [diff] [blame] | 103 | (*addresses)->naddrs = 0; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 104 | for (resp = result; resp != NULL; resp = resp->ai_next) { |
Craig Tiller | a41ac57 | 2016-05-17 16:08:17 -0700 | [diff] [blame] | 105 | (*addresses)->naddrs++; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 106 | } |
Craig Tiller | baa14a9 | 2017-11-03 09:09:36 -0700 | [diff] [blame] | 107 | (*addresses)->addrs = (grpc_resolved_address*)gpr_malloc( |
Yash Tibrewal | d8b84a2 | 2017-09-25 13:38:03 -0700 | [diff] [blame] | 108 | sizeof(grpc_resolved_address) * (*addresses)->naddrs); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 109 | i = 0; |
| 110 | for (resp = result; resp != NULL; resp = resp->ai_next) { |
Craig Tiller | a41ac57 | 2016-05-17 16:08:17 -0700 | [diff] [blame] | 111 | memcpy(&(*addresses)->addrs[i].addr, resp->ai_addr, resp->ai_addrlen); |
| 112 | (*addresses)->addrs[i].len = resp->ai_addrlen; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 113 | i++; |
| 114 | } |
| 115 | |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 116 | { |
Craig Tiller | a41ac57 | 2016-05-17 16:08:17 -0700 | [diff] [blame] | 117 | for (i = 0; i < (*addresses)->naddrs; i++) { |
Craig Tiller | baa14a9 | 2017-11-03 09:09:36 -0700 | [diff] [blame] | 118 | char* buf; |
Michael Lumish | 77c6cce | 2016-09-26 13:51:57 -0700 | [diff] [blame] | 119 | grpc_sockaddr_to_string(&buf, &(*addresses)->addrs[i], 0); |
nnoble | 0c475f0 | 2014-12-05 15:37:39 -0800 | [diff] [blame] | 120 | gpr_free(buf); |
| 121 | } |
| 122 | } |
| 123 | |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 124 | done: |
| 125 | gpr_free(host); |
| 126 | gpr_free(port); |
| 127 | if (result) { |
| 128 | freeaddrinfo(result); |
| 129 | } |
Craig Tiller | a41ac57 | 2016-05-17 16:08:17 -0700 | [diff] [blame] | 130 | return error; |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 131 | } |
| 132 | |
David Garcia Quintas | 706b70f | 2015-10-13 11:19:49 -0700 | [diff] [blame] | 133 | /* Callback to be passed to grpc_executor to asynch-ify |
| 134 | * grpc_blocking_resolve_address */ |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 135 | static void do_request_thread(void* rp, grpc_error* error) { |
Craig Tiller | baa14a9 | 2017-11-03 09:09:36 -0700 | [diff] [blame] | 136 | request* r = (request*)rp; |
Craig Tiller | a41ac57 | 2016-05-17 16:08:17 -0700 | [diff] [blame] | 137 | if (error == GRPC_ERROR_NONE) { |
Craig Tiller | 3e149f3 | 2016-05-17 16:11:04 -0700 | [diff] [blame] | 138 | error = |
| 139 | grpc_blocking_resolve_address(r->name, r->default_port, r->addresses); |
Craig Tiller | a41ac57 | 2016-05-17 16:08:17 -0700 | [diff] [blame] | 140 | } else { |
| 141 | GRPC_ERROR_REF(error); |
| 142 | } |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 143 | GRPC_CLOSURE_SCHED(r->on_done, error); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 144 | gpr_free(r->name); |
| 145 | gpr_free(r->default_port); |
| 146 | gpr_free(r); |
| 147 | } |
| 148 | |
kpayson64 | 539f506 | 2018-03-12 19:16:30 -0700 | [diff] [blame] | 149 | static void windows_resolve_address(const char* name, const char* default_port, |
| 150 | grpc_pollset_set* interested_parties, |
| 151 | grpc_closure* on_done, |
| 152 | grpc_resolved_addresses** addresses) { |
Craig Tiller | baa14a9 | 2017-11-03 09:09:36 -0700 | [diff] [blame] | 153 | request* r = (request*)gpr_malloc(sizeof(request)); |
Sree Kuchibhotla | 37d8bbc | 2018-07-10 13:30:57 -0700 | [diff] [blame] | 154 | GRPC_CLOSURE_INIT( |
| 155 | &r->request_closure, do_request_thread, r, |
| 156 | grpc_executor_scheduler(GRPC_RESOLVER_EXECUTOR, GRPC_EXECUTOR_SHORT)); |
Nicolas Noble | b7ebd3b | 2014-11-26 16:33:03 -0800 | [diff] [blame] | 157 | r->name = gpr_strdup(name); |
| 158 | r->default_port = gpr_strdup(default_port); |
Craig Tiller | a41ac57 | 2016-05-17 16:08:17 -0700 | [diff] [blame] | 159 | r->on_done = on_done; |
| 160 | r->addresses = addresses; |
Yash Tibrewal | 8cf1470 | 2017-12-06 09:47:54 -0800 | [diff] [blame] | 161 | GRPC_CLOSURE_SCHED(&r->request_closure, GRPC_ERROR_NONE); |
Craig Tiller | 190d360 | 2015-02-18 09:23:38 -0800 | [diff] [blame] | 162 | } |
Nicolas "Pixel" Noble | 94964fd | 2015-02-21 07:19:19 +0100 | [diff] [blame] | 163 | |
kpayson64 | 539f506 | 2018-03-12 19:16:30 -0700 | [diff] [blame] | 164 | grpc_address_resolver_vtable grpc_windows_resolver_vtable = { |
| 165 | windows_resolve_address, windows_blocking_resolve_address}; |
Nicolas "Pixel" Noble | 94964fd | 2015-02-21 07:19:19 +0100 | [diff] [blame] | 166 | #endif |