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* Implemented SetToMask(), and added PrefixLength() method, mostly reusing

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code from ifconfig.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38026 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2010-08-11 13:53:31 +00:00
parent b2a400e53a
commit 23f2073215
2 changed files with 89 additions and 2 deletions
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2
headers/os/net/NetworkAddress.h
View File

@ -82,6 +82,8 @@ public:
bool IsSiteLocal() const;
bool IsLocal() const;
ssize_t PrefixLength() const;
uint32 LinkLevelIndex() const;
BString LinkLevelInterface() const;
uint32 LinkLevelType() const;

89
src/kits/network/libnetapi/NetworkAddress.cpp
View File

@ -423,8 +423,52 @@ BNetworkAddress::SetToLoopback()
status_t
BNetworkAddress::SetToMask(int family, uint32 prefixLength)
{
// TODO: implement SetToMask()
return B_NOT_SUPPORTED;
switch (family) {
case AF_INET:
{
if (prefixLength > 32)
return B_BAD_VALUE;
sockaddr_in& mask = (sockaddr_in&)fAddress;
memset(&fAddress, 0, sizeof(sockaddr_storage));
mask.sin_family = AF_INET;
mask.sin_len = sizeof(sockaddr_in);
uint32 hostMask = 0;
for (uint8 i = 32; i > 32 - prefixLength; i--)
hostMask |= 1 << (i - 1);
mask.sin_addr.s_addr = htonl(hostMask);
break;
}
case AF_INET6:
{
if (prefixLength > 128)
return B_BAD_VALUE;
sockaddr_in6& mask = (sockaddr_in6&)fAddress;
memset(&fAddress, 0, sizeof(sockaddr_storage));
mask.sin6_family = AF_INET6;
mask.sin6_len = sizeof(sockaddr_in6);
for (uint8 i = 0; i < sizeof(in6_addr); i++, prefixLength -= 8) {
if (prefixLength < 8) {
mask.sin6_addr.s6_addr[i]
= (uint8)(0xff << (8 - prefixLength));
break;
}
mask.sin6_addr.s6_addr[i] = 0xff;
}
break;
}
default:
return B_NOT_SUPPORTED;
}
return B_OK;
}
@ -709,6 +753,47 @@ BNetworkAddress::IsLocal() const
}
ssize_t
BNetworkAddress::PrefixLength() const
{
switch (fAddress.ss_family) {
case AF_INET:
{
sockaddr_in& mask = (sockaddr_in&)fAddress;
ssize_t result = 0;
uint32 hostMask = ntohl(mask.sin_addr.s_addr);
for (uint8 i = 32; i > 0; i--) {
if ((hostMask & (1 << (i - 1))) == 0)
break;
result++;
}
return result;
}
case AF_INET6:
{
sockaddr_in6& mask = (sockaddr_in6&)fAddress;
ssize_t result = 0;
for (uint8 i = 0; i < sizeof(in6_addr); i++) {
for (uint8 j = 0; j < 8; j++) {
if (!(mask.sin6_addr.s6_addr[i] & (1 << j)))
return result;
result++;
}
}
return 128;
}
default:
return B_NOT_SUPPORTED;
}
}
uint32
BNetworkAddress::LinkLevelIndex() const
{