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Kirill Smelkov
linux
Commits
b5383434
Commit
b5383434
authored
Apr 10, 2003
by
Mathew Richardson
Committed by
David S. Miller
Apr 10, 2003
Browse files
Options
Browse Files
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Plain Diff
[IPV6]: Allow protocol to percolate up into rt6 routing operations.
parent
c96fa28d
Changes
6
Hide whitespace changes
Inline
Side-by-side
Showing
6 changed files
with
70 additions
and
48 deletions
+70
-48
include/net/ip6_fib.h
include/net/ip6_fib.h
+8
-3
include/net/ip6_route.h
include/net/ip6_route.h
+4
-2
net/ipv6/addrconf.c
net/ipv6/addrconf.c
+5
-5
net/ipv6/ip6_fib.c
net/ipv6/ip6_fib.c
+11
-9
net/ipv6/ndisc.c
net/ipv6/ndisc.c
+2
-2
net/ipv6/route.c
net/ipv6/route.c
+40
-27
No files found.
include/net/ip6_fib.h
View file @
b5383434
...
...
@@ -72,6 +72,8 @@ struct rt6_info
struct
rt6key
rt6i_dst
;
struct
rt6key
rt6i_src
;
u8
rt6i_protocol
;
};
struct
fib6_walker_t
...
...
@@ -160,11 +162,14 @@ extern int fib6_walk(struct fib6_walker_t *w);
extern
int
fib6_walk_continue
(
struct
fib6_walker_t
*
w
);
extern
int
fib6_add
(
struct
fib6_node
*
root
,
struct
rt6_info
*
rt
);
struct
rt6_info
*
rt
,
struct
nlmsghdr
*
nlh
);
extern
int
fib6_del
(
struct
rt6_info
*
rt
);
extern
int
fib6_del
(
struct
rt6_info
*
rt
,
struct
nlmsghdr
*
nlh
);
extern
void
inet6_rt_notify
(
int
event
,
struct
rt6_info
*
rt
);
extern
void
inet6_rt_notify
(
int
event
,
struct
rt6_info
*
rt
,
struct
nlmsghdr
*
nlh
);
extern
void
fib6_run_gc
(
unsigned
long
dummy
);
...
...
include/net/ip6_route.h
View file @
b5383434
...
...
@@ -37,8 +37,10 @@ extern void ip6_route_cleanup(void);
extern
int
ipv6_route_ioctl
(
unsigned
int
cmd
,
void
*
arg
);
extern
int
ip6_route_add
(
struct
in6_rtmsg
*
rtmsg
);
extern
int
ip6_del_rt
(
struct
rt6_info
*
);
extern
int
ip6_route_add
(
struct
in6_rtmsg
*
rtmsg
,
struct
nlmsghdr
*
);
extern
int
ip6_del_rt
(
struct
rt6_info
*
,
struct
nlmsghdr
*
);
extern
int
ip6_rt_addr_add
(
struct
in6_addr
*
addr
,
struct
net_device
*
dev
);
...
...
net/ipv6/addrconf.c
View file @
b5383434
...
...
@@ -1202,7 +1202,7 @@ addrconf_prefix_route(struct in6_addr *pfx, int plen, struct net_device *dev,
if
(
dev
->
type
==
ARPHRD_SIT
&&
(
dev
->
flags
&
IFF_POINTOPOINT
))
rtmsg
.
rtmsg_flags
|=
RTF_NONEXTHOP
;
ip6_route_add
(
&
rtmsg
);
ip6_route_add
(
&
rtmsg
,
NULL
);
}
/* Create "default" multicast route to the interface */
...
...
@@ -1219,7 +1219,7 @@ static void addrconf_add_mroute(struct net_device *dev)
rtmsg
.
rtmsg_ifindex
=
dev
->
ifindex
;
rtmsg
.
rtmsg_flags
=
RTF_UP
|
RTF_ADDRCONF
;
rtmsg
.
rtmsg_type
=
RTMSG_NEWROUTE
;
ip6_route_add
(
&
rtmsg
);
ip6_route_add
(
&
rtmsg
,
NULL
);
}
static
void
sit_route_add
(
struct
net_device
*
dev
)
...
...
@@ -1236,7 +1236,7 @@ static void sit_route_add(struct net_device *dev)
rtmsg
.
rtmsg_flags
=
RTF_UP
|
RTF_NONEXTHOP
;
rtmsg
.
rtmsg_ifindex
=
dev
->
ifindex
;
ip6_route_add
(
&
rtmsg
);
ip6_route_add
(
&
rtmsg
,
NULL
);
}
static
void
addrconf_add_lroute
(
struct
net_device
*
dev
)
...
...
@@ -1328,7 +1328,7 @@ void addrconf_prefix_rcv(struct net_device *dev, u8 *opt, int len)
if
(
rt
&&
((
rt
->
rt6i_flags
&
(
RTF_GATEWAY
|
RTF_DEFAULT
))
==
0
))
{
if
(
rt
->
rt6i_flags
&
RTF_EXPIRES
)
{
if
(
pinfo
->
onlink
==
0
||
valid_lft
==
0
)
{
ip6_del_rt
(
rt
);
ip6_del_rt
(
rt
,
NULL
);
rt
=
NULL
;
}
else
{
rt
->
rt6i_expires
=
rt_expires
;
...
...
@@ -1952,7 +1952,7 @@ static void addrconf_rs_timer(unsigned long data)
rtmsg
.
rtmsg_ifindex
=
ifp
->
idev
->
dev
->
ifindex
;
ip6_route_add
(
&
rtmsg
);
ip6_route_add
(
&
rtmsg
,
NULL
);
}
out:
...
...
net/ipv6/ip6_fib.c
View file @
b5383434
...
...
@@ -423,7 +423,8 @@ static struct fib6_node * fib6_add_1(struct fib6_node *root, void *addr,
* Insert routing information in a node.
*/
static
int
fib6_add_rt2node
(
struct
fib6_node
*
fn
,
struct
rt6_info
*
rt
)
static
int
fib6_add_rt2node
(
struct
fib6_node
*
fn
,
struct
rt6_info
*
rt
,
struct
nlmsghdr
*
nlh
)
{
struct
rt6_info
*
iter
=
NULL
;
struct
rt6_info
**
ins
;
...
...
@@ -480,7 +481,7 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt)
*
ins
=
rt
;
rt
->
rt6i_node
=
fn
;
atomic_inc
(
&
rt
->
rt6i_ref
);
inet6_rt_notify
(
RTM_NEWROUTE
,
rt
);
inet6_rt_notify
(
RTM_NEWROUTE
,
rt
,
nlh
);
rt6_stats
.
fib_rt_entries
++
;
if
((
fn
->
fn_flags
&
RTN_RTINFO
)
==
0
)
{
...
...
@@ -504,7 +505,7 @@ static __inline__ void fib6_start_gc(struct rt6_info *rt)
* with source addr info in sub-trees
*/
int
fib6_add
(
struct
fib6_node
*
root
,
struct
rt6_info
*
rt
)
int
fib6_add
(
struct
fib6_node
*
root
,
struct
rt6_info
*
rt
,
struct
nlmsghdr
*
nlh
)
{
struct
fib6_node
*
fn
;
int
err
=
-
ENOMEM
;
...
...
@@ -577,7 +578,7 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt)
}
#endif
err
=
fib6_add_rt2node
(
fn
,
rt
);
err
=
fib6_add_rt2node
(
fn
,
rt
,
nlh
);
if
(
err
==
0
)
{
fib6_start_gc
(
rt
);
...
...
@@ -885,7 +886,8 @@ static struct fib6_node * fib6_repair_tree(struct fib6_node *fn)
}
}
static
void
fib6_del_route
(
struct
fib6_node
*
fn
,
struct
rt6_info
**
rtp
)
static
void
fib6_del_route
(
struct
fib6_node
*
fn
,
struct
rt6_info
**
rtp
,
struct
nlmsghdr
*
nlh
)
{
struct
fib6_walker_t
*
w
;
struct
rt6_info
*
rt
=
*
rtp
;
...
...
@@ -940,11 +942,11 @@ static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp)
if
(
atomic_read
(
&
rt
->
rt6i_ref
)
!=
1
)
BUG
();
}
inet6_rt_notify
(
RTM_DELROUTE
,
rt
);
inet6_rt_notify
(
RTM_DELROUTE
,
rt
,
nlh
);
rt6_release
(
rt
);
}
int
fib6_del
(
struct
rt6_info
*
rt
)
int
fib6_del
(
struct
rt6_info
*
rt
,
struct
nlmsghdr
*
nlh
)
{
struct
fib6_node
*
fn
=
rt
->
rt6i_node
;
struct
rt6_info
**
rtp
;
...
...
@@ -969,7 +971,7 @@ int fib6_del(struct rt6_info *rt)
for
(
rtp
=
&
fn
->
leaf
;
*
rtp
;
rtp
=
&
(
*
rtp
)
->
u
.
next
)
{
if
(
*
rtp
==
rt
)
{
fib6_del_route
(
fn
,
rtp
);
fib6_del_route
(
fn
,
rtp
,
nlh
);
return
0
;
}
}
...
...
@@ -1098,7 +1100,7 @@ static int fib6_clean_node(struct fib6_walker_t *w)
res
=
c
->
func
(
rt
,
c
->
arg
);
if
(
res
<
0
)
{
w
->
leaf
=
rt
;
res
=
fib6_del
(
rt
);
res
=
fib6_del
(
rt
,
NULL
);
if
(
res
)
{
#if RT6_DEBUG >= 2
printk
(
KERN_DEBUG
"fib6_clean_node: del failed: rt=%p@%p err=%d
\n
"
,
rt
,
rt
->
rt6i_node
,
res
);
...
...
net/ipv6/ndisc.c
View file @
b5383434
...
...
@@ -961,7 +961,7 @@ void ndisc_recv_na(struct sk_buff *skb)
struct
rt6_info
*
rt
;
rt
=
rt6_get_dflt_router
(
saddr
,
dev
);
if
(
rt
)
ip6_del_rt
(
rt
);
ip6_del_rt
(
rt
,
NULL
);
}
}
else
{
if
(
msg
->
icmph
.
icmp6_router
)
...
...
@@ -1035,7 +1035,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
rt
=
rt6_get_dflt_router
(
&
skb
->
nh
.
ipv6h
->
saddr
,
skb
->
dev
);
if
(
rt
&&
lifetime
==
0
)
{
ip6_del_rt
(
rt
);
ip6_del_rt
(
rt
,
NULL
);
rt
=
NULL
;
}
...
...
net/ipv6/route.c
View file @
b5383434
...
...
@@ -318,12 +318,12 @@ struct rt6_info *rt6_lookup(struct in6_addr *daddr, struct in6_addr *saddr,
be destroyed.
*/
static
int
rt6_ins
(
struct
rt6_info
*
rt
)
static
int
rt6_ins
(
struct
rt6_info
*
rt
,
struct
nlmsghdr
*
nlh
)
{
int
err
;
write_lock_bh
(
&
rt6_lock
);
err
=
fib6_add
(
&
ip6_routing_table
,
rt
);
err
=
fib6_add
(
&
ip6_routing_table
,
rt
,
nlh
);
write_unlock_bh
(
&
rt6_lock
);
return
err
;
...
...
@@ -366,7 +366,7 @@ static struct rt6_info *rt6_cow(struct rt6_info *ort, struct in6_addr *daddr,
dst_hold
(
&
rt
->
u
.
dst
);
err
=
rt6_ins
(
rt
);
err
=
rt6_ins
(
rt
,
NULL
);
if
(
err
==
0
)
return
rt
;
...
...
@@ -522,7 +522,7 @@ static struct dst_entry *ip6_negative_advice(struct dst_entry *dst)
if
(
rt
)
{
if
(
rt
->
rt6i_flags
&
RTF_CACHE
)
ip6_del_rt
(
rt
);
ip6_del_rt
(
rt
,
NULL
);
else
dst_release
(
dst
);
}
...
...
@@ -625,9 +625,10 @@ static int ipv6_get_hoplimit(struct net_device *dev)
*
*/
int
ip6_route_add
(
struct
in6_rtmsg
*
rtmsg
)
int
ip6_route_add
(
struct
in6_rtmsg
*
rtmsg
,
struct
nlmsghdr
*
nlh
)
{
int
err
;
struct
rtmsg
*
r
;
struct
rt6_info
*
rt
;
struct
net_device
*
dev
=
NULL
;
int
addr_type
;
...
...
@@ -648,6 +649,11 @@ int ip6_route_add(struct in6_rtmsg *rtmsg)
rt
->
u
.
dst
.
obsolete
=
-
1
;
rt
->
rt6i_expires
=
rtmsg
->
rtmsg_info
;
if
(
nlh
&&
(
r
=
NLMSG_DATA
(
nlh
)))
{
rt
->
rt6i_protocol
=
r
->
rtm_protocol
;
}
else
{
rt
->
rt6i_protocol
=
RTPROT_BOOT
;
}
addr_type
=
ipv6_addr_type
(
&
rtmsg
->
rtmsg_dst
);
...
...
@@ -772,7 +778,7 @@ int ip6_route_add(struct in6_rtmsg *rtmsg)
if
(
dst_metric
(
&
rt
->
u
.
dst
,
RTAX_ADVMSS
)
>
65535
-
20
)
rt
->
u
.
dst
.
metrics
[
RTAX_ADVMSS
-
1
]
=
65535
;
rt
->
u
.
dst
.
dev
=
dev
;
return
rt6_ins
(
rt
);
return
rt6_ins
(
rt
,
nlh
);
out:
if
(
dev
)
...
...
@@ -781,7 +787,7 @@ int ip6_route_add(struct in6_rtmsg *rtmsg)
return
err
;
}
int
ip6_del_rt
(
struct
rt6_info
*
rt
)
int
ip6_del_rt
(
struct
rt6_info
*
rt
,
struct
nlmsghdr
*
nlh
)
{
int
err
;
...
...
@@ -793,13 +799,13 @@ int ip6_del_rt(struct rt6_info *rt)
dst_release
(
&
rt
->
u
.
dst
);
err
=
fib6_del
(
rt
);
err
=
fib6_del
(
rt
,
nlh
);
write_unlock_bh
(
&
rt6_lock
);
return
err
;
}
static
int
ip6_route_del
(
struct
in6_rtmsg
*
rtmsg
)
static
int
ip6_route_del
(
struct
in6_rtmsg
*
rtmsg
,
struct
nlmsghdr
*
nlh
)
{
struct
fib6_node
*
fn
;
struct
rt6_info
*
rt
;
...
...
@@ -826,7 +832,7 @@ static int ip6_route_del(struct in6_rtmsg *rtmsg)
dst_hold
(
&
rt
->
u
.
dst
);
read_unlock_bh
(
&
rt6_lock
);
return
ip6_del_rt
(
rt
);
return
ip6_del_rt
(
rt
,
nlh
);
}
}
read_unlock_bh
(
&
rt6_lock
);
...
...
@@ -928,11 +934,11 @@ void rt6_redirect(struct in6_addr *dest, struct in6_addr *saddr,
nrt
->
u
.
dst
.
metrics
[
RTAX_ADVMSS
-
1
]
=
65535
;
nrt
->
rt6i_hoplimit
=
ipv6_get_hoplimit
(
neigh
->
dev
);
if
(
rt6_ins
(
nrt
))
if
(
rt6_ins
(
nrt
,
NULL
))
goto
out
;
if
(
rt
->
rt6i_flags
&
RTF_CACHE
)
{
ip6_del_rt
(
rt
);
ip6_del_rt
(
rt
,
NULL
);
return
;
}
...
...
@@ -1018,7 +1024,7 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
dst_set_expires
(
&
nrt
->
u
.
dst
,
ip6_rt_mtu_expires
);
nrt
->
rt6i_flags
|=
RTF_DYNAMIC
|
RTF_CACHE
|
RTF_EXPIRES
;
nrt
->
u
.
dst
.
metrics
[
RTAX_MTU
-
1
]
=
pmtu
;
rt6_ins
(
nrt
);
rt6_ins
(
nrt
,
NULL
);
}
out:
...
...
@@ -1091,7 +1097,7 @@ struct rt6_info *rt6_add_dflt_router(struct in6_addr *gwaddr,
rtmsg
.
rtmsg_ifindex
=
dev
->
ifindex
;
ip6_route_add
(
&
rtmsg
);
ip6_route_add
(
&
rtmsg
,
NULL
);
return
rt6_get_dflt_router
(
gwaddr
,
dev
);
}
...
...
@@ -1117,7 +1123,7 @@ void rt6_purge_dflt_routers(int last_resort)
read_unlock_bh
(
&
rt6_lock
);
ip6_del_rt
(
rt
);
ip6_del_rt
(
rt
,
NULL
);
goto
restart
;
}
...
...
@@ -1143,10 +1149,10 @@ int ipv6_route_ioctl(unsigned int cmd, void *arg)
rtnl_lock
();
switch
(
cmd
)
{
case
SIOCADDRT
:
err
=
ip6_route_add
(
&
rtmsg
);
err
=
ip6_route_add
(
&
rtmsg
,
NULL
);
break
;
case
SIOCDELRT
:
err
=
ip6_route_del
(
&
rtmsg
);
err
=
ip6_route_del
(
&
rtmsg
,
NULL
);
break
;
default:
err
=
-
EINVAL
;
...
...
@@ -1203,7 +1209,7 @@ int ip6_rt_addr_add(struct in6_addr *addr, struct net_device *dev)
ipv6_addr_copy
(
&
rt
->
rt6i_dst
.
addr
,
addr
);
rt
->
rt6i_dst
.
plen
=
128
;
rt6_ins
(
rt
);
rt6_ins
(
rt
,
NULL
);
return
0
;
}
...
...
@@ -1220,7 +1226,7 @@ int ip6_rt_addr_del(struct in6_addr *addr, struct net_device *dev)
rt
=
rt6_lookup
(
addr
,
NULL
,
loopback_dev
.
ifindex
,
1
);
if
(
rt
)
{
if
(
rt
->
rt6i_dst
.
plen
==
128
)
err
=
ip6_del_rt
(
rt
);
err
=
ip6_del_rt
(
rt
,
NULL
);
else
dst_release
(
&
rt
->
u
.
dst
);
}
...
...
@@ -1350,7 +1356,7 @@ int inet6_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
if
(
inet6_rtm_to_rtmsg
(
r
,
arg
,
&
rtmsg
))
return
-
EINVAL
;
return
ip6_route_del
(
&
rtmsg
);
return
ip6_route_del
(
&
rtmsg
,
nlh
);
}
int
inet6_rtm_newroute
(
struct
sk_buff
*
skb
,
struct
nlmsghdr
*
nlh
,
void
*
arg
)
...
...
@@ -1360,7 +1366,7 @@ int inet6_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
if
(
inet6_rtm_to_rtmsg
(
r
,
arg
,
&
rtmsg
))
return
-
EINVAL
;
return
ip6_route_add
(
&
rtmsg
);
return
ip6_route_add
(
&
rtmsg
,
nlh
);
}
struct
rt6_rtnl_dump_arg
...
...
@@ -1373,13 +1379,18 @@ static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
struct
in6_addr
*
dst
,
struct
in6_addr
*
src
,
int
iif
,
int
type
,
u32
pid
,
u32
seq
)
int
type
,
u32
pid
,
u32
seq
,
struct
nlmsghdr
*
in_nlh
)
{
struct
rtmsg
*
rtm
;
struct
nlmsghdr
*
nlh
;
unsigned
char
*
b
=
skb
->
tail
;
struct
rta_cacheinfo
ci
;
if
(
!
pid
&&
in_nlh
)
{
pid
=
in_nlh
->
nlmsg_pid
;
}
nlh
=
NLMSG_PUT
(
skb
,
pid
,
seq
,
type
,
sizeof
(
*
rtm
));
rtm
=
NLMSG_DATA
(
nlh
);
rtm
->
rtm_family
=
AF_INET6
;
...
...
@@ -1395,7 +1406,7 @@ static int rt6_fill_node(struct sk_buff *skb, struct rt6_info *rt,
rtm
->
rtm_type
=
RTN_UNICAST
;
rtm
->
rtm_flags
=
0
;
rtm
->
rtm_scope
=
RT_SCOPE_UNIVERSE
;
rtm
->
rtm_protocol
=
RTPROT_BOOT
;
rtm
->
rtm_protocol
=
rt
->
rt6i_protocol
;
if
(
rt
->
rt6i_flags
&
RTF_DYNAMIC
)
rtm
->
rtm_protocol
=
RTPROT_REDIRECT
;
else
if
(
rt
->
rt6i_flags
&
(
RTF_ADDRCONF
|
RTF_ALLONLINK
))
...
...
@@ -1458,7 +1469,8 @@ static int rt6_dump_route(struct rt6_info *rt, void *p_arg)
struct
rt6_rtnl_dump_arg
*
arg
=
(
struct
rt6_rtnl_dump_arg
*
)
p_arg
;
return
rt6_fill_node
(
arg
->
skb
,
rt
,
NULL
,
NULL
,
0
,
RTM_NEWROUTE
,
NETLINK_CB
(
arg
->
cb
->
skb
).
pid
,
arg
->
cb
->
nlh
->
nlmsg_seq
);
NETLINK_CB
(
arg
->
cb
->
skb
).
pid
,
arg
->
cb
->
nlh
->
nlmsg_seq
,
NULL
);
}
static
int
fib6_dump_node
(
struct
fib6_walker_t
*
w
)
...
...
@@ -1608,7 +1620,8 @@ int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
fl
.
nl_u
.
ip6_u
.
daddr
,
fl
.
nl_u
.
ip6_u
.
saddr
,
iif
,
RTM_NEWROUTE
,
NETLINK_CB
(
in_skb
).
pid
,
nlh
->
nlmsg_seq
);
RTM_NEWROUTE
,
NETLINK_CB
(
in_skb
).
pid
,
nlh
->
nlmsg_seq
,
nlh
);
if
(
err
<
0
)
{
err
=
-
EMSGSIZE
;
goto
out_free
;
...
...
@@ -1624,7 +1637,7 @@ int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr* nlh, void *arg)
goto
out
;
}
void
inet6_rt_notify
(
int
event
,
struct
rt6_info
*
rt
)
void
inet6_rt_notify
(
int
event
,
struct
rt6_info
*
rt
,
struct
nlmsghdr
*
nlh
)
{
struct
sk_buff
*
skb
;
int
size
=
NLMSG_SPACE
(
sizeof
(
struct
rtmsg
)
+
256
);
...
...
@@ -1634,7 +1647,7 @@ void inet6_rt_notify(int event, struct rt6_info *rt)
netlink_set_err
(
rtnl
,
0
,
RTMGRP_IPV6_ROUTE
,
ENOBUFS
);
return
;
}
if
(
rt6_fill_node
(
skb
,
rt
,
NULL
,
NULL
,
0
,
event
,
0
,
0
)
<
0
)
{
if
(
rt6_fill_node
(
skb
,
rt
,
NULL
,
NULL
,
0
,
event
,
0
,
0
,
nlh
)
<
0
)
{
kfree_skb
(
skb
);
netlink_set_err
(
rtnl
,
0
,
RTMGRP_IPV6_ROUTE
,
EINVAL
);
return
;
...
...
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