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* Interface::_ChangeAddress() got the address check for equality wrong,

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effectively rejecting any try to set an address.
* It now copies the new address as well in order to make sure that its
  sa_len field is set correctly.
* Improved debug output.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@37937 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2010-08-06 09:59:55 +00:00
parent ff1b1ac7ff
commit b0cf274a3f
2 changed files with 36 additions and 8 deletions
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src/add-ons/kernel/network/stack/interfaces.cpp
+25 -7
View File
@@ -19,6 +19,7 @@
#include <KernelExport.h>
#include <net_device.h>
#include <NetUtilities.h>
#include "device_interfaces.h"
#include "domains.h"
@@ -408,7 +409,10 @@ Interface::Interface(const char* interfaceName,
TRACE("Interface %p: new \"%s\", device interface %p\n", this,
interfaceName, deviceInterface);
strlcpy(name, interfaceName, IF_NAMESIZE);
int written = strlcpy(name, interfaceName, IF_NAMESIZE);
memset(name + written, 0, IF_NAMESIZE - written);
// Clear remaining space
device = deviceInterface->device;
index = ++sInterfaceIndex;
@@ -961,18 +965,27 @@ Interface::_FirstForFamily(int family)
status_t
Interface::_ChangeAddress(RecursiveLocker& locker, InterfaceAddress* address,
int32 option, const sockaddr* originalAddress, const sockaddr* newAddress)
int32 option, const sockaddr* originalAddress,
const sockaddr* requestedAddress)
{
// Copy old address over
// Copy old address
sockaddr_storage oldAddress;
if (address->domain->address_module->set_to((sockaddr*)&oldAddress,
originalAddress) != B_OK)
oldAddress.ss_family = AF_UNSPEC;
// Copy new address (this also makes sure that sockaddr::sa_len is set
// correctly)
sockaddr_storage newAddress;
if (address->domain->address_module->set_to((sockaddr*)&newAddress,
requestedAddress) != B_OK)
newAddress.ss_family = AF_UNSPEC;
// Test if anything changed for real
if (!address->domain->address_module->equal_addresses(originalAddress,
newAddress)) {
if (address->domain->address_module->equal_addresses(
(sockaddr*)&oldAddress, (sockaddr*)&newAddress)) {
// Nothing to do
TRACE(" option %" B_PRId32 " addresses are equal!\n", option);
return B_OK;
}
@@ -984,8 +997,7 @@ Interface::_ChangeAddress(RecursiveLocker& locker, InterfaceAddress* address,
status_t status = datalink->first_protocol->module->change_address(
datalink->first_protocol, address, option,
oldAddress.ss_family != AF_UNSPEC ? (sockaddr*)&oldAddress : NULL,
newAddress != NULL && newAddress->sa_family != AF_UNSPEC
? newAddress : NULL);
newAddress.ss_family != AF_UNSPEC ? (sockaddr*)&newAddress : NULL);
locker.Lock();
address->ReleaseReference();
@@ -1144,6 +1156,11 @@ status_t
update_interface_address(InterfaceAddress* interfaceAddress, int32 option,
const sockaddr* oldAddress, const sockaddr* newAddress)
{
TRACE("%s(address %p, option %" B_PRId32 ", oldAddress %s, newAddress "
"%s)\n", __FUNCTION__, interfaceAddress, option,
AddressString(interfaceAddress->domain, oldAddress).Data(),
AddressString(interfaceAddress->domain, newAddress).Data());
MutexLocker locker(sHashLock);
// set logical interface address
@@ -1358,6 +1375,7 @@ get_interface_address_for_link(net_domain* domain, const sockaddr* address,
if (linkAddress.sdl_alen == interface->device->address.length
&& memcmp(LLADDR(&linkAddress), interface->device->address.data,
linkAddress.sdl_alen) == 0) {
TRACE(" %s matches\n", interface->name);
// link address matches
if (unconfiguredOnly)
return interface->FirstUnconfiguredForFamily(domain->family);