| /* |
| * |
| * 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 "src/core/iomgr/sockaddr_utils.h" |
| |
| #include <errno.h> |
| #include <string.h> |
| |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/log.h> |
| #include <grpc/support/port_platform.h> |
| #include "test/core/util/test_config.h" |
| |
| static struct sockaddr_in make_addr4(const gpr_uint8 *data, size_t data_len) { |
| struct sockaddr_in addr4; |
| memset(&addr4, 0, sizeof(addr4)); |
| addr4.sin_family = AF_INET; |
| GPR_ASSERT(data_len == sizeof(addr4.sin_addr.s_addr)); |
| memcpy(&addr4.sin_addr.s_addr, data, data_len); |
| addr4.sin_port = htons(12345); |
| return addr4; |
| } |
| |
| static struct sockaddr_in6 make_addr6(const gpr_uint8 *data, size_t data_len) { |
| struct sockaddr_in6 addr6; |
| memset(&addr6, 0, sizeof(addr6)); |
| addr6.sin6_family = AF_INET6; |
| GPR_ASSERT(data_len == sizeof(addr6.sin6_addr.s6_addr)); |
| memcpy(&addr6.sin6_addr.s6_addr, data, data_len); |
| addr6.sin6_port = htons(12345); |
| return addr6; |
| } |
| |
| static const gpr_uint8 kMapped[] = {0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0xff, 0xff, 192, 0, 2, 1}; |
| static const gpr_uint8 kNotQuiteMapped[] = {0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0xff, 0xfe, 192, 0, 2, 99}; |
| static const gpr_uint8 kIPv4[] = {192, 0, 2, 1}; |
| static const gpr_uint8 kIPv6[] = {0x20, 0x01, 0x0d, 0xb8, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, 1}; |
| |
| static void test_sockaddr_is_v4mapped(void) { |
| struct sockaddr_in input4; |
| struct sockaddr_in6 input6; |
| struct sockaddr_in output4; |
| struct sockaddr_in expect4; |
| |
| gpr_log(GPR_INFO, "%s", __FUNCTION__); |
| |
| /* v4mapped input should succeed. */ |
| input6 = make_addr6(kMapped, sizeof(kMapped)); |
| GPR_ASSERT(grpc_sockaddr_is_v4mapped((const struct sockaddr *)&input6, NULL)); |
| GPR_ASSERT( |
| grpc_sockaddr_is_v4mapped((const struct sockaddr *)&input6, &output4)); |
| expect4 = make_addr4(kIPv4, sizeof(kIPv4)); |
| GPR_ASSERT(memcmp(&expect4, &output4, sizeof(expect4)) == 0); |
| |
| /* Non-v4mapped input should fail. */ |
| input6 = make_addr6(kNotQuiteMapped, sizeof(kNotQuiteMapped)); |
| GPR_ASSERT( |
| !grpc_sockaddr_is_v4mapped((const struct sockaddr *)&input6, NULL)); |
| GPR_ASSERT( |
| !grpc_sockaddr_is_v4mapped((const struct sockaddr *)&input6, &output4)); |
| /* Output is unchanged. */ |
| GPR_ASSERT(memcmp(&expect4, &output4, sizeof(expect4)) == 0); |
| |
| /* Plain IPv4 input should also fail. */ |
| input4 = make_addr4(kIPv4, sizeof(kIPv4)); |
| GPR_ASSERT( |
| !grpc_sockaddr_is_v4mapped((const struct sockaddr *)&input4, NULL)); |
| } |
| |
| static void test_sockaddr_to_v4mapped(void) { |
| struct sockaddr_in input4; |
| struct sockaddr_in6 input6; |
| struct sockaddr_in6 output6; |
| struct sockaddr_in6 expect6; |
| |
| gpr_log(GPR_INFO, "%s", __FUNCTION__); |
| |
| /* IPv4 input should succeed. */ |
| input4 = make_addr4(kIPv4, sizeof(kIPv4)); |
| GPR_ASSERT( |
| grpc_sockaddr_to_v4mapped((const struct sockaddr *)&input4, &output6)); |
| expect6 = make_addr6(kMapped, sizeof(kMapped)); |
| GPR_ASSERT(memcmp(&expect6, &output6, sizeof(output6)) == 0); |
| |
| /* IPv6 input should fail. */ |
| input6 = make_addr6(kIPv6, sizeof(kIPv6)); |
| GPR_ASSERT( |
| !grpc_sockaddr_to_v4mapped((const struct sockaddr *)&input6, &output6)); |
| /* Output is unchanged. */ |
| GPR_ASSERT(memcmp(&expect6, &output6, sizeof(output6)) == 0); |
| |
| /* Already-v4mapped input should also fail. */ |
| input6 = make_addr6(kMapped, sizeof(kMapped)); |
| GPR_ASSERT( |
| !grpc_sockaddr_to_v4mapped((const struct sockaddr *)&input6, &output6)); |
| } |
| |
| static void test_sockaddr_is_wildcard(void) { |
| struct sockaddr_in wild4; |
| struct sockaddr_in6 wild6; |
| struct sockaddr_in6 wild_mapped; |
| struct sockaddr dummy; |
| int port; |
| |
| gpr_log(GPR_INFO, "%s", __FUNCTION__); |
| |
| /* Generate wildcards. */ |
| grpc_sockaddr_make_wildcards(555, &wild4, &wild6); |
| GPR_ASSERT( |
| grpc_sockaddr_to_v4mapped((const struct sockaddr *)&wild4, &wild_mapped)); |
| |
| /* Test 0.0.0.0:555 */ |
| port = -1; |
| GPR_ASSERT(grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild4, &port)); |
| GPR_ASSERT(port == 555); |
| memset(&wild4.sin_addr.s_addr, 0xbd, 1); |
| GPR_ASSERT( |
| !grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild4, &port)); |
| |
| /* Test [::]:555 */ |
| port = -1; |
| GPR_ASSERT(grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild6, &port)); |
| GPR_ASSERT(port == 555); |
| memset(&wild6.sin6_addr.s6_addr, 0xbd, 1); |
| GPR_ASSERT( |
| !grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild6, &port)); |
| |
| /* Test [::ffff:0.0.0.0]:555 */ |
| port = -1; |
| GPR_ASSERT( |
| grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild_mapped, &port)); |
| GPR_ASSERT(port == 555); |
| memset(&wild_mapped.sin6_addr.s6_addr, 0xbd, 1); |
| GPR_ASSERT( |
| !grpc_sockaddr_is_wildcard((const struct sockaddr *)&wild_mapped, &port)); |
| |
| /* Test AF_UNSPEC. */ |
| port = -1; |
| memset(&dummy, 0, sizeof(dummy)); |
| GPR_ASSERT(!grpc_sockaddr_is_wildcard(&dummy, &port)); |
| GPR_ASSERT(port == -1); |
| } |
| |
| static void expect_sockaddr_str(const char *expected, void *addr, |
| int normalize) { |
| int result; |
| char *str; |
| gpr_log(GPR_INFO, " expect_sockaddr_str(%s)", expected); |
| result = grpc_sockaddr_to_string(&str, (struct sockaddr *)addr, normalize); |
| GPR_ASSERT(str != NULL); |
| GPR_ASSERT(result >= 0); |
| GPR_ASSERT((size_t)result == strlen(str)); |
| GPR_ASSERT(strcmp(expected, str) == 0); |
| gpr_free(str); |
| } |
| |
| static void test_sockaddr_to_string(void) { |
| struct sockaddr_in input4; |
| struct sockaddr_in6 input6; |
| struct sockaddr dummy; |
| |
| gpr_log(GPR_INFO, "%s", __FUNCTION__); |
| |
| errno = 0x7EADBEEF; |
| |
| input4 = make_addr4(kIPv4, sizeof(kIPv4)); |
| expect_sockaddr_str("192.0.2.1:12345", &input4, 0); |
| expect_sockaddr_str("192.0.2.1:12345", &input4, 1); |
| |
| input6 = make_addr6(kIPv6, sizeof(kIPv6)); |
| expect_sockaddr_str("[2001:db8::1]:12345", &input6, 0); |
| expect_sockaddr_str("[2001:db8::1]:12345", &input6, 1); |
| |
| input6 = make_addr6(kMapped, sizeof(kMapped)); |
| expect_sockaddr_str("[::ffff:192.0.2.1]:12345", &input6, 0); |
| expect_sockaddr_str("192.0.2.1:12345", &input6, 1); |
| |
| input6 = make_addr6(kNotQuiteMapped, sizeof(kNotQuiteMapped)); |
| expect_sockaddr_str("[::fffe:c000:263]:12345", &input6, 0); |
| expect_sockaddr_str("[::fffe:c000:263]:12345", &input6, 1); |
| |
| memset(&dummy, 0, sizeof(dummy)); |
| dummy.sa_family = 123; |
| expect_sockaddr_str("(sockaddr family=123)", &dummy, 0); |
| expect_sockaddr_str("(sockaddr family=123)", &dummy, 1); |
| |
| GPR_ASSERT(errno == 0x7EADBEEF); |
| } |
| |
| int main(int argc, char **argv) { |
| grpc_test_init(argc, argv); |
| |
| test_sockaddr_is_v4mapped(); |
| test_sockaddr_to_v4mapped(); |
| test_sockaddr_is_wildcard(); |
| test_sockaddr_to_string(); |
| |
| return 0; |
| } |