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Thomas Leymonerie
slapos
Commits
5fe4e2ab
Commit
5fe4e2ab
authored
Feb 10, 2013
by
Jondy Zhao
Browse files
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Plain Diff
Add kernel_cygwin.c
parent
0e633e88
Changes
2
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Showing
2 changed files
with
690 additions
and
78 deletions
+690
-78
component/babeld/cyginet.c
component/babeld/cyginet.c
+3
-78
component/babeld/kernel_cygwin.c
component/babeld/kernel_cygwin.c
+687
-0
No files found.
component/babeld/cyginet.c
View file @
5fe4e2ab
...
@@ -532,6 +532,7 @@ int cyginet_stop_monitor_route_changes()
...
@@ -532,6 +532,7 @@ int cyginet_stop_monitor_route_changes()
/* Notify thread to quit */
/* Notify thread to quit */
WSASetEvent
(
event_notify_monitor_thread
);
WSASetEvent
(
event_notify_monitor_thread
);
CLOSESOCKEVENT
(
event_notify_monitor_thread
);
CLOSESOCKEVENT
(
event_notify_monitor_thread
);
/* Waiting for thread exit in 5 seconds */
event_notify_monitor_thread
=
WSA_INVALID_EVENT
;
event_notify_monitor_thread
=
WSA_INVALID_EVENT
;
return
rc
;
return
rc
;
...
@@ -619,8 +620,7 @@ libwinet_edit_route_entry(const struct sockaddr *dest,
...
@@ -619,8 +620,7 @@ libwinet_edit_route_entry(const struct sockaddr *dest,
}
}
/* Add ipv4 route before Windows Vista */
/* Add ipv4 route before Windows Vista */
else
if
(
1
)
{
else
if
(
0
)
{
MIB_IPFORWARDROW
Row
;
MIB_IPFORWARDROW
Row
;
unsigned
long
Res
;
unsigned
long
Res
;
memset
(
&
Row
,
0
,
sizeof
(
MIB_IPFORWARDROW
));
memset
(
&
Row
,
0
,
sizeof
(
MIB_IPFORWARDROW
));
...
@@ -1931,74 +1931,6 @@ DWORD GetConnectedNetworks()
...
@@ -1931,74 +1931,6 @@ DWORD GetConnectedNetworks()
/* ------------------------------------------------------------- */
/* ------------------------------------------------------------- */
#ifdef TEST_CYGINET
#ifdef TEST_CYGINET
static
int
libwinet_set_forward_entry
(
char
*
pszDest
,
char
*
pszNetMask
,
char
*
pszGateway
,
DWORD
dwIfIndex
,
DWORD
dwMetric
)
{
DWORD
dwStatus
;
MIB_IPFORWARDROW
routeEntry
;
// Ip routing table row entry
memset
(
&
routeEntry
,
0
,
sizeof
(
MIB_IPFORWARDROW
));
// converting and checking input arguments...
if
(
pszDest
==
NULL
||
pszNetMask
==
NULL
||
pszGateway
==
NULL
)
{
printf
(
"IpRoute: Bad Argument
\n
"
);
return
-
1
;
}
routeEntry
.
dwForwardDest
=
inet_addr
(
pszDest
);
// convert dotted ip addr. to ip addr.
if
(
routeEntry
.
dwForwardDest
==
INADDR_NONE
)
{
printf
(
"IpRoute: Bad Destination %s
\n
"
,
pszDest
);
return
-
1
;
}
routeEntry
.
dwForwardMask
=
inet_addr
(
pszNetMask
);
if
(
(
routeEntry
.
dwForwardMask
==
INADDR_NONE
)
&&
(
strcmp
(
"255.255.255.255"
,
pszNetMask
)
!=
0
)
)
{
printf
(
"IpRoute: Bad Mask %s
\n
"
,
pszNetMask
);
return
-
1
;
}
routeEntry
.
dwForwardNextHop
=
inet_addr
(
pszGateway
);
if
(
routeEntry
.
dwForwardNextHop
==
INADDR_NONE
)
{
printf
(
"IpRoute: Bad Gateway %s
\n
"
,
pszGateway
);
return
-
1
;
}
if
(
(
routeEntry
.
dwForwardDest
&
routeEntry
.
dwForwardMask
)
!=
routeEntry
.
dwForwardDest
)
{
printf
(
"IpRoute: Invalid Mask %s
\n
"
,
pszNetMask
);
return
-
1
;
}
routeEntry
.
dwForwardIfIndex
=
dwIfIndex
;
routeEntry
.
dwForwardMetric1
=
dwMetric
;
// some default values
routeEntry
.
dwForwardProto
=
MIB_IPPROTO_NETMGMT
;
routeEntry
.
dwForwardMetric2
=
(
DWORD
)
-
1
;
routeEntry
.
dwForwardMetric3
=
(
DWORD
)
-
1
;
routeEntry
.
dwForwardMetric4
=
(
DWORD
)
-
1
;
dwStatus
=
SetIpForwardEntry
(
&
routeEntry
);
if
(
dwStatus
!=
NO_ERROR
)
{
printf
(
"IpRoute: couldn't add (%s), dwStatus = %lu.
\n
"
,
pszDest
,
dwStatus
);
return
-
1
;
}
return
0
;
}
static
void
static
void
runTestCases
()
runTestCases
()
{
{
...
@@ -2278,14 +2210,7 @@ runTestCases()
...
@@ -2278,14 +2210,7 @@ runTestCases()
unsigned
int
metric
;
unsigned
int
metric
;
int
ifindex
;
int
ifindex
;
int
n
;
int
n
;
printf
(
"libwinet_set_forward_entry return %d
\n
"
,
libwinet_set_forward_entry
(
"192.168.128.250"
,
"255.255.255.255"
,
"192.168.128.200"
,
2
,
20
)
);
if
(
inet_pton
(
AF_INET
,
"192.168.128.119"
,
&
dest4
.
sin_addr
)
!=
1
)
if
(
inet_pton
(
AF_INET
,
"192.168.128.119"
,
&
dest4
.
sin_addr
)
!=
1
)
break
;
break
;
if
(
inet_pton
(
AF_INET
,
"192.168.128.200"
,
&
gate4
.
sin_addr
)
!=
1
)
if
(
inet_pton
(
AF_INET
,
"192.168.128.200"
,
&
gate4
.
sin_addr
)
!=
1
)
...
...
component/babeld/kernel_cygwin.c
0 → 100644
View file @
5fe4e2ab
/*
Copyright (c) 2007 by Grégoire Henry
Copyright (c) 2008, 2009 by Juliusz Chroboczek
Copyright (c) 2010 by Vincent Gross
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <time.h>
#include <strings.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <ifaddrs.h>
#include <net/if.h>
#include "babeld.h"
#include "neighbour.h"
#include "kernel.h"
#include "util.h"
#include "cyginet.h"
/*
* Some issues:
*
* 1. kernel_route
*
* RTM_BLACKHOLE, gateway will be set as loopback, is it right?
*
* 2. IN6_LINKLOCAL_IFINDEX && SET_IN6_LINKLOCAL_IFINDEX
*
* Do both of them work in the Windows?
*
* 3. kernel_interface_ipv4
*
* ? interface name, ipv4, ifindex, Oh, they're mass.
*
*/
static
int
get_sdl
(
struct
sockaddr_dl
*
sdl
,
char
*
ifname
);
static
const
unsigned
char
v4prefix
[
16
]
=
{
0
,
0
,
0
,
0
,
0
,
0
,
0
,
0
,
0
,
0
,
0xFF
,
0xFF
,
0
,
0
,
0
,
0
};
int
export_table
=
-
1
,
import_table
=
-
1
;
int
if_eui64
(
char
*
ifname
,
int
ifindex
,
unsigned
char
*
eui
)
{
struct
sockaddr_dl
sdl
;
char
*
tmp
=
NULL
;
if
(
get_sdl
(
&
sdl
,
ifname
)
<
0
)
{
return
-
1
;
}
tmp
=
sdl
.
sdl_data
+
sdl
.
sdl_nlen
;
if
(
sdl
.
sdl_alen
==
8
)
{
memcpy
(
eui
,
tmp
,
8
);
eui
[
0
]
^=
2
;
}
else
if
(
sdl
.
sdl_alen
==
6
)
{
memcpy
(
eui
,
tmp
,
3
);
eui
[
3
]
=
0xFF
;
eui
[
4
]
=
0xFE
;
memcpy
(
eui
+
5
,
tmp
+
3
,
3
);
}
else
{
return
-
1
;
}
return
0
;
}
/* fill sdl with the structure corresponding to ifname.
Warning: make a syscall (and get all interfaces).
return -1 if an error occurs, 0 otherwise. */
static
int
get_sdl
(
struct
sockaddr_dl
*
sdl
,
char
*
ifname
)
{
return
cyginet_interface_sdl
(
sdl
,
ifname
);
}
/* KAME said : "Following two macros are highly depending on KAME Release" */
#define IN6_LINKLOCAL_IFINDEX(a) ((a).s6_addr[2] << 8 | (a).s6_addr[3])
#define SET_IN6_LINKLOCAL_IFINDEX(a, i) \
do { \
(a).s6_addr[2] = ((i) >> 8) & 0xff; \
(a).s6_addr[3] = (i) & 0xff; \
} while (0)
static
int
old_forwarding
=
-
1
;
static
int
old_accept_redirects
=
-
1
;
static
int
ifindex_lo
=
-
1
;
static
int
if6index_lo
=
-
1
;
static
int
kernel_pipe_handles
[
2
];
int
kernel_setup
(
int
setup
)
{
int
rc
=
0
;
int
forwarding
=
1
;
int
accept_redirects
=
0
;
int
reboot
=
0
;
/* It enables ip6.forwarding and disable ip6.redirect.
*
* Option 1:
*
* IPV6CTL_FORWARDING (ip6.forwarding) Boolean: enable/disable
* forward- ing of IPv6 packets. Also, identify if the node is
* acting as a router. Defaults to off.
*
* ==> command line:
*
* C:/> ipv6 ifc $If6Index forwards
*
* repeat this operation for all ipv6 interfaces
*
* List all ipv6 interface by the command:
*
* C:/> netsh interface ipv6 show interface
*
* ==> API: EnableRouter/DisableRouter (only for ipv4)
*
* ==> MSDN says in the registry
*
* HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
*
* Value Name: IPEnableRouter
* Value type: REG_DWORD
* Value Data: 1
*
* A value of 1 enables TCP/IP forwarding for all network
* connections that are installed and used by this computer.
*
* Refer to: http://support.microsoft.com/kb/315236/en-us
*
* Option 2:
*
* ICMPV6CTL_REDIRACCEPT
*
* IPV6CTL_SENDREDIRECTS (ip6.redirect) Boolean: enable/disable
* sending of ICMPv6 redirects in response to unforwardable IPv6
* packets. This option is ignored unless the node is routing
* IPv6 packets, and should normally be enabled on all systems.
* Defaults to on.
*
* ==> MSDN says in the registry
*
* HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
*
* EnableICMPRedirect = 0
*
* Refer to:
*
* http://technet.microsoft.com/en-us/library/cc766102(v=ws.10).aspx
*
* After change them, need to reboot machine.
*
* Notice:
*
* MSDN says nothing about ipv6, it should use the following key
*
* HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters
*
* Maybe later Window VISTA its corresponding APIs are
* WSAEnumProtocols, WSCUpdateProvider.
*
*/
if
(
setup
)
{
int
flags
;
if
(
0
!=
cyginet_startup
())
return
-
1
;
if
((
rc
=
cyginet_set_ipv6_forwards
(
forwarding
))
==
-
1
)
{
fprintf
(
stderr
,
"Cannot enable IPv6 forwarding.
\n
"
);
return
-
1
;
}
old_forwarding
=
rc
;
reboot
=
(
rc
==
forwarding
)
?
reboot
:
1
;
if
((
rc
=
cyginet_set_icmp6_redirect_accept
(
accept_redirects
))
==
-
1
)
{
fprintf
(
stderr
,
"Cannot disable ICMPv6 redirect.
\n
"
);
if
(
reboot
)
cyginet_set_ipv6_forwards
(
old_forwarding
);
return
-
1
;
}
old_accept_redirects
=
rc
;
reboot
=
(
rc
==
accept_redirects
)
?
reboot
:
1
;
if
(
pipe
(
kernel_pipe_handles
)
==
-
1
)
return
-
1
;
if
((
flags
=
fcntl
(
kernel_pipe_handles
[
0
],
F_GETFL
,
0
))
<
0
)
goto
error
;
if
(
fcntl
(
kernel_pipe_handles
[
0
],
F_SETFL
,
flags
|
O_NONBLOCK
)
==
-
1
)
goto
error
;
}
else
{
if
(
-
1
==
(
rc
=
cyginet_set_ipv6_forwards
(
old_forwarding
)))
return
-
1
;
reboot
=
(
rc
==
forwarding
)
?
reboot
:
1
;
if
(
-
1
==
(
rc
=
cyginet_set_icmp6_redirect_accept
(
old_accept_redirects
)))
return
-
1
;
reboot
=
(
rc
==
accept_redirects
)
?
reboot
:
1
;
close
(
kernel_pipe_handles
[
0
]);
close
(
kernel_pipe_handles
[
1
]);
cyginet_cleanup
();
}
if
(
reboot
)
fprintf
(
stderr
,
"%s IPv6 forwarding and %s ICMPv6 redirect successfully.
\n
"
"REBOOT NOW, so that these changes take effect.
\n\n
"
,
forwarding
?
"Enable"
:
"Disable"
,
accept_redirects
?
"enable"
:
"disable"
);
return
1
;
error:
{
if
(
reboot
)
{
cyginet_set_ipv6_forwards
(
old_forwarding
);
cyginet_set_icmp6_redirect_accept
(
old_accept_redirects
);
}
return
-
1
;
}
}
int
kernel_setup_socket
(
int
setup
)
{
/* We use a pipe to notify route changed */
if
(
setup
)
{
if
(
kernel_socket
<
0
)
{
kernel_socket
=
kernel_pipe_handles
[
0
];
if
(
-
1
==
cyginet_start_monitor_route_changes
(
kernel_pipe_handles
[
1
]))
{
perror
(
"start_monitor_route_changes"
);
kernel_socket
=
-
1
;
return
-
1
;
}
}
}
else
{
cyginet_stop_monitor_route_changes
();
kernel_socket
=
-
1
;
}
return
1
;
}
int
kernel_setup_interface
(
int
setup
,
const
char
*
ifname
,
int
ifindex
)
{
return
1
;
}
int
kernel_interface_operational
(
const
char
*
ifname
,
int
ifindex
)
{
int
rc
;
int
flags
=
link_detect
?
(
IFF_UP
|
IFF_RUNNING
)
:
IFF_UP
;
rc
=
cyginet_interface_operational
(
ifname
,
ifindex
);
if
(
rc
<
0
)
return
-
1
;
return
((
rc
&
flags
)
==
flags
);
}
int
kernel_interface_ipv4
(
const
char
*
ifname
,
int
ifindex
,
unsigned
char
*
addr_r
)
{
return
cyginet_interface_ipv4
(
ifname
,
ifindex
,
addr_r
);
}
int
kernel_interface_mtu
(
const
char
*
ifname
,
int
ifindex
)
{
return
cyginet_interface_mtu
(
ifname
,
ifindex
);
}
int
kernel_interface_wireless
(
const
char
*
ifname
,
int
ifindex
)
{
return
cyginet_interface_wireless
(
ifname
,
ifindex
);
}
int
kernel_interface_channel
(
const
char
*
ifname
,
int
ifindex
)
{
errno
=
ENOSYS
;
return
-
1
;
}
/*
* RTF_REJECT
*
* Instead of forwarding a packet like a normal route, routes with
* RTF_REJECT cause packets to be dropped and unreachable messages
* to be sent to the packet originators. This flag is only valid on
* routes pointing at the loopback interface.
*
* RTF_BLACKHOLE
*
* Like the RTF_REJECT flag, routes with RTF_BLACKHOLE cause packets
* to be dropped, but unreachable messages are not sent. This flag
* is only valid on routes pointing at the loopback interface.
*
* Nullrouting on Windows
*
* Windows XP/Vista/7 does not support reject or blackhole arguments
* via route, thus an unused IP address (e.g. 192.168.0.205) must be
* used as the target gateway.
*
* RTF_GATEWAY: destination is a gateway
*
* RTF_HOST: host entry (net otherwise)
*
* It means all the netmask bits are 1.
*
* RTF_CLONING: generate new routes on use
*
* No corresponding function in the Windows.
*
*/
int
kernel_route
(
int
operation
,
const
unsigned
char
*
dest
,
unsigned
short
plen
,
const
unsigned
char
*
gate
,
int
ifindex
,
unsigned
int
metric
,
const
unsigned
char
*
newgate
,
int
newifindex
,
unsigned
int
newmetric
)
{
int
rc
,
ipv4
;
struct
sockaddr
destination
,
gateway
;
int
route_ifindex
;
int
prefix_len
;
struct
in6_addr
local6
=
{{
IN6ADDR_LOOPBACK_INIT
}};
char
local4
[
1
][
1
][
16
]
=
{{{
0x00
,
0x00
,
0x00
,
0x00
,
0x00
,
0x00
,
0x00
,
0x00
,
0x00
,
0x00
,
0x00
,
0x00
,
0x7f
,
0x00
,
0x00
,
0x01
}}};
/* Check that the protocol family is consistent. */
if
(
plen
>=
96
&&
v4mapped
(
dest
))
{
if
(
!
v4mapped
(
gate
))
{
errno
=
EINVAL
;
return
-
1
;
}
ipv4
=
1
;
}
else
{
if
(
v4mapped
(
gate
))
{
errno
=
EINVAL
;
return
-
1
;
}
ipv4
=
0
;
}
if
(
operation
==
ROUTE_MODIFY
&&
newmetric
==
metric
&&
memcmp
(
newgate
,
gate
,
16
)
==
0
&&
newifindex
==
ifindex
)
return
0
;
if
(
operation
==
ROUTE_MODIFY
)
{
/* Do not use ROUTE_MODIFY when changing to a neighbour.
It is the only way to remove the "gateway" flag. */
if
(
ipv4
&&
plen
==
128
&&
memcmp
(
dest
,
newgate
,
16
)
==
0
)
{
kernel_route
(
ROUTE_FLUSH
,
dest
,
plen
,
gate
,
ifindex
,
metric
,
NULL
,
0
,
0
);
return
kernel_route
(
ROUTE_ADD
,
dest
,
plen
,
newgate
,
newifindex
,
newmetric
,
NULL
,
0
,
0
);
}
else
{
metric
=
newmetric
;
gate
=
newgate
;
ifindex
=
newifindex
;
}
}
kdebugf
(
"kernel_route: %s %s/%d metric %d dev %d nexthop %s
\n
"
,
operation
==
ROUTE_ADD
?
"add"
:
operation
==
ROUTE_FLUSH
?
"flush"
:
"change"
,
format_address
(
dest
),
plen
,
metric
,
ifindex
,
format_address
(
gate
));
if
(
kernel_socket
<
0
)
kernel_setup_socket
(
1
);
memset
(
&
destination
,
0
,
sizeof
(
destination
));
memset
(
&
gateway
,
0
,
sizeof
(
gateway
));
route_ifindex
=
ifindex
;
prefix_len
=
ipv4
?
plen
-
96
:
plen
;
if
(
metric
==
KERNEL_INFINITY
)
{
/* RTF_BLACKHOLE; */
/* ==> Set gateway to an unused ip address in the Windows */
if
(
ipv4
)
{
if
(
ifindex_lo
<
0
)
{
ifindex_lo
=
cyginet_loopback_index
(
AF_INET
);
if
(
ifindex_lo
<=
0
)
return
-
1
;
}
route_ifindex
=
ifindex_lo
;
}
else
{
if
(
if6index_lo
<
0
)
{
if6index_lo
=
cyginet_loopback_index
(
AF_INET6
);
if
(
if6index_lo
<=
0
)
return
-
1
;
}
route_ifindex
=
if6index_lo
;
}
}
#define PUSHADDR(dst, src) \
do { struct sockaddr_in *sin = (struct sockaddr_in*)(&(dst)); \
sin->sin_family = AF_INET; \
memcpy(&sin->sin_addr, (src) + 12, 4); \
} while (0)
#define PUSHADDR6(dst, src) \
do { struct sockaddr_in6 *sin6 = (struct sockaddr_in6*)(&(dst)); \
sin6->sin6_family = AF_INET6; \
memcpy(&sin6->sin6_addr, (src), 16); \
if(IN6_IS_ADDR_LINKLOCAL (&sin6->sin6_addr)) \
SET_IN6_LINKLOCAL_IFINDEX (sin6->sin6_addr, ifindex); \
} while (0)
if
(
ipv4
)
{
PUSHADDR
(
destination
,
dest
);
if
(
metric
==
KERNEL_INFINITY
)
PUSHADDR
(
gateway
,
**
local4
);
else
PUSHADDR
(
gateway
,
gate
);
}
else
{
PUSHADDR6
(
destination
,
dest
);
if
(
metric
==
KERNEL_INFINITY
)
PUSHADDR6
(
gateway
,
&
local6
);
else
PUSHADDR6
(
gateway
,
gate
);
}
#undef PUSHADDR
#undef PUSHADDR6
switch
(
operation
)
{
case
ROUTE_FLUSH
:
rc
=
cyginet_delete_route_entry
(
&
destination
,
prefix_len
,
&
gateway
,
route_ifindex
,
metric
);
break
;
case
ROUTE_ADD
:
rc
=
cyginet_add_route_entry
(
&
destination
,
prefix_len
,
&
gateway
,
route_ifindex
,
metric
);
break
;
case
ROUTE_MODIFY
:
rc
=
cyginet_update_route_entry
(
&
destination
,
prefix_len
,
&
gateway
,
route_ifindex
,
metric
);
break
;
default:
return
-
1
;
};
/* Monitor thread will write data to kernel pipe when any change
in the route table is happened. Here it's babeld itself to
change the route table, so kernel pipe need to be clean. */
int
ch
;
while
(
read
(
kernel_pipe_handles
[
0
],
&
ch
,
1
)
>
0
);
return
rc
;
}
static
void
print_kernel_route
(
int
add
,
struct
kernel_route
*
route
)
{
char
ifname
[
IFNAMSIZ
];
if
(
!
if_indextoname
(
route
->
ifindex
,
ifname
))
memcpy
(
ifname
,
"unk"
,
4
);
fprintf
(
stderr
,
"%s kernel route: dest: %s gw: %s metric: %d if: %s(%d)
\n
"
,
add
==
RTM_ADD
?
"Add"
:
add
==
RTM_DELETE
?
"Delete"
:
"Change"
,
format_prefix
(
route
->
prefix
,
route
->
plen
),
format_address
(
route
->
gw
),
route
->
metric
,
ifname
,
route
->
ifindex
);
}
static
int
parse_kernel_route
(
struct
kernel_route
*
route
)
{
struct
sockaddr
*
sa
;
if
(
ifindex_lo
<
0
)
{
ifindex_lo
=
cyginet_loopback_index
(
AF_INET
);
if
(
ifindex_lo
<=
0
)
return
-
1
;
}
if
(
if6index_lo
<
0
)
{
if6index_lo
=
cyginet_loopback_index
(
AF_INET6
);
if
(
if6index_lo
<=
0
)
return
-
1
;
}
sa
=
(
struct
sockaddr
*
)
route
->
prefix
;
if
(
sa
->
sa_family
==
AF_INET6
)
{
struct
sockaddr_in6
*
sin6
=
(
struct
sockaddr_in6
*
)
sa
;
if
(
IN6_IS_ADDR_LINKLOCAL
(
&
sin6
->
sin6_addr
)
||
IN6_IS_ADDR_MC_LINKLOCAL
(
&
sin6
->
sin6_addr
))
return
-
1
;
}
else
if
(
sa
->
sa_family
==
AF_INET
)
{
struct
sockaddr_in
*
sin
=
(
struct
sockaddr_in
*
)
sa
;
#if defined(IN_LINKLOCAL)
if
(
IN_LINKLOCAL
(
ntohl
(
sin
->
sin_addr
.
s_addr
)))
return
-
1
;
#endif
if
(
IN_MULTICAST
(
ntohl
(
sin
->
sin_addr
.
s_addr
)))
return
-
1
;
v4tov6
(
route
->
prefix
,
(
unsigned
char
*
)
&
sin
->
sin_addr
);
}
else
{
return
-
1
;
}
/* Gateway */
sa
=
(
struct
sockaddr
*
)
route
->
gw
;
if
(
sa
->
sa_family
==
AF_INET6
)
{
struct
sockaddr_in6
*
sin6
=
(
struct
sockaddr_in6
*
)
sa
;
if
(
IN6_IS_ADDR_LINKLOCAL
(
&
sin6
->
sin6_addr
))
{
route
->
ifindex
=
IN6_LINKLOCAL_IFINDEX
(
sin6
->
sin6_addr
);
SET_IN6_LINKLOCAL_IFINDEX
(
sin6
->
sin6_addr
,
0
);
}
}
else
if
(
sa
->
sa_family
==
AF_INET
)
{
struct
sockaddr_in
*
sin
=
(
struct
sockaddr_in
*
)
sa
;
v4tov6
(
route
->
gw
,
(
unsigned
char
*
)
&
sin
->
sin_addr
);
}
if
((
sa
->
sa_family
==
AF_INET6
)
&&
(
route
->
ifindex
==
if6index_lo
))
return
-
1
;
if
((
sa
->
sa_family
==
AF_INET
)
&&
(
route
->
ifindex
==
ifindex_lo
))
return
-
1
;
/* Netmask */
if
(
v4mapped
(
route
->
prefix
))
route
->
plen
+=
96
;
return
0
;
}
int
kernel_routes
(
struct
kernel_route
*
routes
,
int
maxroutes
)
{
int
rc
,
i
;
int
count
;
struct
kernel_route
*
proute
=
routes
;
struct
kernel_route
*
pdest
=
proute
;
memset
(
routes
,
0
,
sizeof
(
struct
kernel_route
)
*
maxroutes
);
rc
=
cyginet_dump_route_table
(
routes
,
maxroutes
);
if
(
rc
<
0
)
return
-
1
;
count
=
0
;
for
(
i
=
0
;
i
<
rc
;
i
++
,
proute
++
)
{
if
(
parse_kernel_route
(
proute
)
!=
0
)
continue
;
if
(
proute
!=
pdest
)
memcpy
(
pdest
,
proute
,
sizeof
(
struct
kernel_route
));
if
(
debug
>
2
)
print_kernel_route
(
RTM_ADD
,
pdest
);
pdest
++
;
}
return
(
pdest
-
routes
);
}
int
kernel_addresses
(
char
*
ifname
,
int
ifindex
,
int
ll
,
struct
kernel_route
*
routes
,
int
maxroutes
)
{
struct
ifaddrs
*
ifa
,
*
ifap
;
int
rc
,
i
;
/* Two issues:
* 1. ifname maybe includes a suffix number in the cygwin
* 2. Ipv4 IfIndex maybe need to be changed as Ipv6IfIndex
*/
rc
=
getifaddrs
(
&
ifa
);
if
(
rc
<
0
)
return
-
1
;
ifap
=
ifa
;
i
=
0
;
while
(
ifap
&&
i
<
maxroutes
)
{
if
((
ifname
!=
NULL
&&
strcmp
(
ifap
->
ifa_name
,
ifname
)
!=
0
))
goto
next
;
if
(
ifap
->
ifa_addr
->
sa_family
==
AF_INET6
)
{
struct
sockaddr_in6
*
sin6
=
(
struct
sockaddr_in6
*
)
ifap
->
ifa_addr
;
if
(
!!
ll
!=
!!
IN6_IS_ADDR_LINKLOCAL
(
&
sin6
->
sin6_addr
))
goto
next
;
memcpy
(
routes
[
i
].
prefix
,
&
sin6
->
sin6_addr
,
16
);
if
(
ll
)
/* This a perfect example of counter-productive optimisation :
KAME encodes interface index onto bytes 2 and 3, so we have to
reset those bytes to 0 before passing them to babeld. */
memset
(
routes
[
i
].
prefix
+
2
,
0
,
2
);
routes
[
i
].
plen
=
128
;
routes
[
i
].
metric
=
0
;
routes
[
i
].
ifindex
=
ifindex
;
routes
[
i
].
proto
=
RTPROT_BABEL_LOCAL
;
memset
(
routes
[
i
].
gw
,
0
,
16
);
i
++
;
}
else
if
(
ifap
->
ifa_addr
->
sa_family
==
AF_INET
)
{
struct
sockaddr_in
*
sin
=
(
struct
sockaddr_in
*
)
ifap
->
ifa_addr
;
if
(
ll
)
goto
next
;
#if defined(IN_LINKLOCAL)
if
(
IN_LINKLOCAL
(
htonl
(
sin
->
sin_addr
.
s_addr
)))
goto
next
;
#endif
memcpy
(
routes
[
i
].
prefix
,
v4prefix
,
12
);
memcpy
(
routes
[
i
].
prefix
+
12
,
&
sin
->
sin_addr
,
4
);
routes
[
i
].
plen
=
128
;
routes
[
i
].
metric
=
0
;
routes
[
i
].
ifindex
=
ifindex
;
routes
[
i
].
proto
=
RTPROT_BABEL_LOCAL
;
memset
(
routes
[
i
].
gw
,
0
,
16
);
i
++
;
}
next:
ifap
=
ifap
->
ifa_next
;
}
freeifaddrs
(
ifa
);
return
i
;
}
int
kernel_callback
(
int
(
*
fn
)(
int
,
void
*
),
void
*
closure
)
{
if
(
kernel_socket
<
0
)
kernel_setup_socket
(
1
);
/* In the Windows, we can't get the exact changed route, but the
route table is really changed. */
kdebugf
(
"Kernel table changed."
);
return
fn
(
~
0
,
closure
);
}
/* Local Variables: */
/* c-basic-offset: 4 */
/* indent-tabs-mode: nil */
/* End: */
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