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nexedi
linux
Commits
f26e95cb
Commit
f26e95cb
authored
Jul 02, 2003
by
Hideaki Yoshifuji
Committed by
James Morris
Jul 02, 2003
Browse files
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Plain Diff
[NET] convert /proc/net/mcfilter to seq_file
parent
e2363971
Changes
3
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Inline
Side-by-side
Showing
3 changed files
with
161 additions
and
56 deletions
+161
-56
include/net/ip.h
include/net/ip.h
+0
-1
net/ipv4/igmp.c
net/ipv4/igmp.c
+161
-54
net/ipv4/ip_output.c
net/ipv4/ip_output.c
+0
-1
No files found.
include/net/ip.h
View file @
f26e95cb
...
...
@@ -80,7 +80,6 @@ extern rwlock_t ip_ra_lock;
extern
void
ip_mc_dropsocket
(
struct
sock
*
);
extern
void
ip_mc_dropdevice
(
struct
net_device
*
dev
);
extern
int
igmp_mc_proc_init
(
void
);
extern
int
ip_mcf_procinfo
(
char
*
,
char
**
,
off_t
,
int
);
/*
* Functions provided by ip.c
...
...
net/ipv4/igmp.c
View file @
f26e95cb
...
...
@@ -2247,74 +2247,177 @@ static struct file_operations igmp_mc_seq_fops = {
.
llseek
=
seq_lseek
,
.
release
=
seq_release_private
,
};
#endif
int
ip_mcf_procinfo
(
char
*
buffer
,
char
**
start
,
off_t
offset
,
int
length
)
{
off_t
pos
=
0
,
begin
=
0
;
int
len
=
0
;
int
first
=
1
;
struct
igmp_mcf_iter_state
{
struct
net_device
*
dev
;
struct
in_device
*
idev
;
struct
ip_mc_list
*
im
;
};
read_lock
(
&
dev_base_lock
);
for
(
dev
=
dev_base
;
dev
;
dev
=
dev
->
next
)
{
struct
in_device
*
in_dev
=
in_dev_get
(
dev
);
struct
ip_mc_list
*
imc
;
#define igmp_mcf_seq_private(seq) ((struct igmp_mcf_iter_state *)&seq->private)
if
(
in_dev
==
NULL
)
static
inline
struct
ip_sf_list
*
igmp_mcf_get_first
(
struct
seq_file
*
seq
)
{
struct
ip_sf_list
*
psf
=
NULL
;
struct
ip_mc_list
*
im
=
NULL
;
struct
igmp_mcf_iter_state
*
state
=
igmp_mcf_seq_private
(
seq
);
for
(
state
->
dev
=
dev_base
,
state
->
idev
=
NULL
,
state
->
im
=
NULL
;
state
->
dev
;
state
->
dev
=
state
->
dev
->
next
)
{
struct
in_device
*
idev
;
idev
=
in_dev_get
(
state
->
dev
);
if
(
unlikely
(
idev
==
NULL
))
continue
;
read_lock_bh
(
&
idev
->
lock
);
im
=
idev
->
mc_list
;
if
(
likely
(
im
!=
NULL
))
{
spin_lock_bh
(
&
im
->
lock
);
psf
=
im
->
sources
;
if
(
likely
(
psf
!=
NULL
))
{
state
->
im
=
im
;
state
->
idev
=
idev
;
break
;
}
spin_unlock_bh
(
&
im
->
lock
);
}
read_unlock_bh
(
&
idev
->
lock
);
}
return
psf
;
}
read_lock
(
&
in_dev
->
lock
);
static
struct
ip_sf_list
*
igmp_mcf_get_next
(
struct
seq_file
*
seq
,
struct
ip_sf_list
*
psf
)
{
struct
igmp_mcf_iter_state
*
state
=
igmp_mcf_seq_private
(
seq
);
psf
=
psf
->
sf_next
;
while
(
!
psf
)
{
spin_unlock_bh
(
&
state
->
im
->
lock
);
state
->
im
=
state
->
im
->
next
;
while
(
!
state
->
im
)
{
if
(
likely
(
state
->
idev
!=
NULL
))
{
read_unlock_bh
(
&
state
->
idev
->
lock
);
in_dev_put
(
state
->
idev
);
}
state
->
dev
=
state
->
dev
->
next
;
if
(
!
state
->
dev
)
{
state
->
idev
=
NULL
;
goto
out
;
}
state
->
idev
=
in_dev_get
(
state
->
dev
);
if
(
!
state
->
idev
)
continue
;
read_lock_bh
(
&
state
->
idev
->
lock
);
state
->
im
=
state
->
idev
->
mc_list
;
}
if
(
!
state
->
im
)
break
;
spin_lock_bh
(
&
state
->
im
->
lock
);
psf
=
state
->
im
->
sources
;
}
out:
return
psf
;
}
for
(
imc
=
in_dev
->
mc_list
;
imc
;
imc
=
imc
->
next
)
{
static
struct
ip_sf_list
*
igmp_mcf_get_idx
(
struct
seq_file
*
seq
,
loff_t
pos
)
{
struct
ip_sf_list
*
psf
=
igmp_mcf_get_first
(
seq
);
if
(
psf
)
while
(
pos
&&
(
psf
=
igmp_mcf_get_next
(
seq
,
psf
))
!=
NULL
)
--
pos
;
return
pos
?
NULL
:
psf
;
}
static
void
*
igmp_mcf_seq_start
(
struct
seq_file
*
seq
,
loff_t
*
pos
)
{
read_lock
(
&
dev_base_lock
);
return
*
pos
?
igmp_mcf_get_idx
(
seq
,
*
pos
)
:
(
void
*
)
1
;
}
static
void
*
igmp_mcf_seq_next
(
struct
seq_file
*
seq
,
void
*
v
,
loff_t
*
pos
)
{
struct
ip_sf_list
*
psf
;
if
(
v
==
(
void
*
)
1
)
psf
=
igmp_mcf_get_first
(
seq
);
else
psf
=
igmp_mcf_get_next
(
seq
,
v
);
++*
pos
;
return
psf
;
}
spin_lock_bh
(
&
imc
->
lock
);
for
(
psf
=
imc
->
sources
;
psf
;
psf
=
psf
->
sf_next
)
{
if
(
first
)
{
len
+=
sprintf
(
buffer
+
len
,
"%3s %6s "
"%10s %10s %6s %6s
\n
"
,
"Idx"
,
"Device"
,
"MCA"
,
"SRC"
,
"INC"
,
"EXC"
);
first
=
0
;
static
void
igmp_mcf_seq_stop
(
struct
seq_file
*
seq
,
void
*
v
)
{
struct
igmp_mcf_iter_state
*
state
=
igmp_mcf_seq_private
(
seq
);
if
(
likely
(
state
->
im
!=
NULL
))
spin_unlock_bh
(
&
state
->
im
->
lock
);
if
(
likely
(
state
->
idev
!=
NULL
))
{
read_unlock_bh
(
&
state
->
idev
->
lock
);
in_dev_put
(
state
->
idev
)
;
}
len
+=
sprintf
(
buffer
+
len
,
"%3d %6.6s 0x%08x "
"0x%08x %6lu %6lu
\n
"
,
dev
->
ifindex
,
dev
->
name
,
ntohl
(
imc
->
multiaddr
),
read_unlock
(
&
dev_base_lock
);
}
static
int
igmp_mcf_seq_show
(
struct
seq_file
*
seq
,
void
*
v
)
{
struct
ip_sf_list
*
psf
=
(
struct
ip_sf_list
*
)
v
;
struct
igmp_mcf_iter_state
*
state
=
igmp_mcf_seq_private
(
seq
);
if
(
v
==
(
void
*
)
1
)
{
seq_printf
(
seq
,
"%3s %6s "
"%10s %10s %6s %6s
\n
"
,
"Idx"
,
"Device"
,
"MCA"
,
"SRC"
,
"INC"
,
"EXC"
);
}
else
{
seq_printf
(
seq
,
"%3d %6.6s 0x%08x "
"0x%08x %6lu %6lu
\n
"
,
state
->
dev
->
ifindex
,
state
->
dev
->
name
,
ntohl
(
state
->
im
->
multiaddr
),
ntohl
(
psf
->
sf_inaddr
),
psf
->
sf_count
[
MCAST_INCLUDE
],
psf
->
sf_count
[
MCAST_EXCLUDE
]);
pos
=
begin
+
len
;
if
(
pos
<
offset
)
{
len
=
0
;
begin
=
pos
;
}
if
(
pos
>
offset
+
length
)
{
spin_unlock_bh
(
&
imc
->
lock
);
read_unlock
(
&
in_dev
->
lock
);
in_dev_put
(
in_dev
);
goto
done
;
}
}
spin_unlock_bh
(
&
imc
->
lock
);
}
read_unlock
(
&
in_dev
->
lock
);
in_dev_put
(
in_dev
);
}
done:
read_unlock
(
&
dev_base_lock
);
return
0
;
}
static
struct
seq_operations
igmp_mcf_seq_ops
=
{
.
start
=
igmp_mcf_seq_start
,
.
next
=
igmp_mcf_seq_next
,
.
stop
=
igmp_mcf_seq_stop
,
.
show
=
igmp_mcf_seq_show
,
};
static
int
igmp_mcf_seq_open
(
struct
inode
*
inode
,
struct
file
*
file
)
{
struct
seq_file
*
seq
;
int
rc
=
-
ENOMEM
;
struct
igmp_mcf_iter_state
*
s
=
kmalloc
(
sizeof
(
*
s
),
GFP_KERNEL
);
*
start
=
buffer
+
(
offset
-
begin
);
len
-=
(
offset
-
begin
);
if
(
len
>
length
)
len
=
length
;
if
(
len
<
0
)
len
=
0
;
return
len
;
if
(
!
s
)
goto
out
;
rc
=
seq_open
(
file
,
&
igmp_mcf_seq_ops
);
if
(
rc
)
goto
out_kfree
;
seq
=
file
->
private_data
;
seq
->
private
=
s
;
memset
(
s
,
0
,
sizeof
(
*
s
));
out:
return
rc
;
out_kfree:
kfree
(
s
);
goto
out
;
}
#ifdef CONFIG_PROC_FS
static
struct
file_operations
igmp_mcf_seq_fops
=
{
.
owner
=
THIS_MODULE
,
.
open
=
igmp_mcf_seq_open
,
.
read
=
seq_read
,
.
llseek
=
seq_lseek
,
.
release
=
seq_release_private
,
};
int
__init
igmp_mc_proc_init
(
void
)
{
struct
proc_dir_entry
*
p
;
...
...
@@ -2322,6 +2425,10 @@ int __init igmp_mc_proc_init(void)
p
=
create_proc_entry
(
"igmp"
,
S_IRUGO
,
proc_net
);
if
(
p
)
p
->
proc_fops
=
&
igmp_mc_seq_fops
;
p
=
create_proc_entry
(
"mcfilter"
,
S_IRUGO
,
proc_net
);
if
(
p
)
p
->
proc_fops
=
&
igmp_mcf_seq_fops
;
return
0
;
}
#endif
...
...
net/ipv4/ip_output.c
View file @
f26e95cb
...
...
@@ -1316,5 +1316,4 @@ void __init ip_init(void)
#ifdef CONFIG_IP_MULTICAST
igmp_mc_proc_init
();
#endif
proc_net_create
(
"mcfilter"
,
0
,
ip_mcf_procinfo
);
}
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