1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/**
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0.
*/
#include <aws/io/socket.h>
#include <aws/io/logging.h>
/* common validation for connect() and bind() */
static int s_socket_validate_port_for_domain(uint32_t port, enum aws_socket_domain domain) {
switch (domain) {
case AWS_SOCKET_IPV4:
case AWS_SOCKET_IPV6:
if (port > UINT16_MAX) {
AWS_LOGF_ERROR(
AWS_LS_IO_SOCKET,
"Invalid port=%u for %s. Cannot exceed 65535",
port,
domain == AWS_SOCKET_IPV4 ? "IPv4" : "IPv6");
return aws_raise_error(AWS_IO_SOCKET_INVALID_ADDRESS);
}
break;
case AWS_SOCKET_LOCAL:
/* port is ignored */
break;
case AWS_SOCKET_VSOCK:
/* any 32bit port is legal */
break;
default:
AWS_LOGF_ERROR(AWS_LS_IO_SOCKET, "Cannot validate port for unknown domain=%d", domain);
return aws_raise_error(AWS_IO_SOCKET_INVALID_ADDRESS);
}
return AWS_OP_SUCCESS;
}
int aws_socket_validate_port_for_connect(uint32_t port, enum aws_socket_domain domain) {
if (s_socket_validate_port_for_domain(port, domain)) {
return AWS_OP_ERR;
}
/* additional validation */
switch (domain) {
case AWS_SOCKET_IPV4:
case AWS_SOCKET_IPV6:
if (port == 0) {
AWS_LOGF_ERROR(
AWS_LS_IO_SOCKET,
"Invalid port=%u for %s connections. Must use 1-65535",
port,
domain == AWS_SOCKET_IPV4 ? "IPv4" : "IPv6");
return aws_raise_error(AWS_IO_SOCKET_INVALID_ADDRESS);
}
break;
case AWS_SOCKET_VSOCK:
if (port == (uint32_t)-1) {
AWS_LOGF_ERROR(
AWS_LS_IO_SOCKET, "Invalid port for VSOCK connections. Cannot use VMADDR_PORT_ANY (-1U).");
return aws_raise_error(AWS_IO_SOCKET_INVALID_ADDRESS);
}
break;
default:
/* no extra validation */
break;
}
return AWS_OP_SUCCESS;
}
int aws_socket_validate_port_for_bind(uint32_t port, enum aws_socket_domain domain) {
return s_socket_validate_port_for_domain(port, domain);
}
|
