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nexedi
linux
Commits
24818d6e
Commit
24818d6e
authored
21 years ago
by
Hideaki Yoshifuji
Committed by
James Morris
21 years ago
Browse files
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Plain Diff
[NET] convert /proc/net/igmp to seq_file
parent
f16fd25c
Changes
3
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Showing
3 changed files
with
159 additions
and
47 deletions
+159
-47
include/net/ip.h
include/net/ip.h
+1
-1
net/ipv4/igmp.c
net/ipv4/igmp.c
+157
-45
net/ipv4/ip_output.c
net/ipv4/ip_output.c
+1
-1
No files found.
include/net/ip.h
View file @
24818d6e
...
...
@@ -79,7 +79,7 @@ extern rwlock_t ip_ra_lock;
extern
void
ip_mc_dropsocket
(
struct
sock
*
);
extern
void
ip_mc_dropdevice
(
struct
net_device
*
dev
);
extern
int
i
p_mc_procinfo
(
char
*
,
char
**
,
off_t
,
int
);
extern
int
i
gmp_mc_proc_init
(
void
);
extern
int
ip_mcf_procinfo
(
char
*
,
char
**
,
off_t
,
int
);
/*
...
...
This diff is collapsed.
Click to expand it.
net/ipv4/igmp.c
View file @
24818d6e
...
...
@@ -99,7 +99,10 @@
#ifdef CONFIG_IP_MROUTE
#include <linux/mroute.h>
#endif
#ifdef CONFIG_PROC_FS
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#endif
#define IP_MAX_MEMBERSHIPS 20
...
...
@@ -2090,65 +2093,162 @@ int ip_check_mc(struct in_device *in_dev, u32 mc_addr, u32 src_addr, u16 proto)
return
rv
;
}
#if defined(CONFIG_PROC_FS)
struct
igmp_mc_iter_state
{
struct
net_device
*
dev
;
struct
in_device
*
in_dev
;
};
#define igmp_mc_seq_private(seq) ((struct igmp_mc_iter_state *)&seq->private)
int
ip_mc_procinfo
(
char
*
buffer
,
char
**
start
,
off_t
offset
,
int
length
)
static
inline
struct
ip_mc_list
*
igmp_mc_get_first
(
struct
seq_file
*
seq
)
{
off_t
pos
=
0
,
begin
=
0
;
struct
ip_mc_list
*
im
;
int
len
=
0
;
struct
net_device
*
dev
;
struct
ip_mc_list
*
im
=
NULL
;
struct
igmp_mc_iter_state
*
state
=
igmp_mc_seq_private
(
seq
);
for
(
state
->
dev
=
dev_base
,
state
->
in_dev
=
NULL
;
state
->
dev
;
state
->
dev
=
state
->
dev
->
next
)
{
struct
in_device
*
in_dev
;
in_dev
=
in_dev_get
(
state
->
dev
);
if
(
!
in_dev
)
continue
;
read_lock
(
&
in_dev
->
lock
);
im
=
in_dev
->
mc_list
;
if
(
im
)
{
state
->
in_dev
=
in_dev
;
break
;
}
read_unlock
(
&
in_dev
->
lock
);
}
return
im
;
}
static
struct
ip_mc_list
*
igmp_mc_get_next
(
struct
seq_file
*
seq
,
struct
ip_mc_list
*
im
)
{
struct
igmp_mc_iter_state
*
state
=
igmp_mc_seq_private
(
seq
);
im
=
im
->
next
;
while
(
!
im
)
{
if
(
likely
(
state
->
in_dev
!=
NULL
))
{
read_unlock
(
&
state
->
in_dev
->
lock
);
in_dev_put
(
state
->
in_dev
);
}
state
->
dev
=
state
->
dev
->
next
;
if
(
!
state
->
dev
)
{
state
->
in_dev
=
NULL
;
break
;
}
state
->
in_dev
=
in_dev_get
(
state
->
dev
);
if
(
!
state
->
in_dev
)
continue
;
read_lock
(
&
state
->
in_dev
->
lock
);
im
=
state
->
in_dev
->
mc_list
;
}
return
im
;
}
len
=
sprintf
(
buffer
,
"Idx
\t
Device : Count Querier
\t
Group Users Timer
\t
Reporter
\n
"
);
static
struct
ip_mc_list
*
igmp_mc_get_idx
(
struct
seq_file
*
seq
,
loff_t
pos
)
{
struct
ip_mc_list
*
im
=
igmp_mc_get_first
(
seq
);
if
(
im
)
while
(
pos
&&
(
im
=
igmp_mc_get_next
(
seq
,
im
))
!=
NULL
)
--
pos
;
return
pos
?
NULL
:
im
;
}
static
void
*
igmp_mc_seq_start
(
struct
seq_file
*
seq
,
loff_t
*
pos
)
{
read_lock
(
&
dev_base_lock
);
for
(
dev
=
dev_base
;
dev
;
dev
=
dev
->
next
)
{
struct
in_device
*
in_dev
=
in_dev_get
(
dev
);
char
*
querier
=
"NONE"
;
return
*
pos
?
igmp_mc_get_idx
(
seq
,
*
pos
)
:
(
void
*
)
1
;
}
if
(
in_dev
==
NULL
)
continue
;
static
void
*
igmp_mc_seq_next
(
struct
seq_file
*
seq
,
void
*
v
,
loff_t
*
pos
)
{
struct
ip_mc_list
*
im
;
if
(
v
==
(
void
*
)
1
)
im
=
igmp_mc_get_first
(
seq
);
else
im
=
igmp_mc_get_next
(
seq
,
v
);
++*
pos
;
return
im
;
}
static
void
igmp_mc_seq_stop
(
struct
seq_file
*
seq
,
void
*
v
)
{
struct
igmp_mc_iter_state
*
state
=
igmp_mc_seq_private
(
seq
);
if
(
likely
(
state
->
in_dev
!=
NULL
))
{
read_unlock
(
&
state
->
in_dev
->
lock
);
in_dev_put
(
state
->
in_dev
);
}
read_unlock
(
&
dev_base_lock
);
}
static
int
igmp_mc_seq_show
(
struct
seq_file
*
seq
,
void
*
v
)
{
if
(
v
==
(
void
*
)
1
)
seq_printf
(
seq
,
"Idx
\t
Device : Count Querier
\t
Group Users Timer
\t
Reporter
\n
"
);
else
{
struct
ip_mc_list
*
im
=
(
struct
ip_mc_list
*
)
v
;
struct
igmp_mc_iter_state
*
state
=
igmp_mc_seq_private
(
seq
);
char
*
querier
;
#ifdef CONFIG_IP_MULTICAST
querier
=
IGMP_V1_SEEN
(
in_dev
)
?
"V1"
:
"V2"
;
querier
=
IGMP_V1_SEEN
(
state
->
in_dev
)
?
"V1"
:
"V2"
;
#else
querier
=
"NONE"
;
#endif
len
+=
sprintf
(
buffer
+
len
,
"%d
\t
%-10s: %5d %7s
\n
"
,
dev
->
ifindex
,
dev
->
name
,
dev
->
mc_count
,
querier
);
read_lock
(
&
in_dev
->
lock
);
for
(
im
=
in_dev
->
mc_list
;
im
;
im
=
im
->
next
)
{
len
+=
sprintf
(
buffer
+
len
,
"
\t\t\t\t
%08lX %5d %d:%08lX
\t\t
%d
\n
"
,
im
->
multiaddr
,
im
->
users
,
im
->
tm_running
,
im
->
timer
.
expires
-
jiffies
,
im
->
reporter
);
pos
=
begin
+
len
;
if
(
pos
<
offset
)
{
len
=
0
;
begin
=
pos
;
}
if
(
pos
>
offset
+
length
)
{
read_unlock
(
&
in_dev
->
lock
);
in_dev_put
(
in_dev
);
goto
done
;
}
if
(
state
->
in_dev
->
mc_list
==
im
)
{
seq_printf
(
seq
,
"%d
\t
%-10s: %5d %7s
\n
"
,
state
->
dev
->
ifindex
,
state
->
dev
->
name
,
state
->
dev
->
mc_count
,
querier
);
}
read_unlock
(
&
in_dev
->
lock
);
in_dev_put
(
in_dev
);
seq_printf
(
seq
,
"
\t\t\t\t
%08lX %5d %d:%08lX
\t\t
%d
\n
"
,
im
->
multiaddr
,
im
->
users
,
im
->
tm_running
,
im
->
timer
.
expires
-
jiffies
,
im
->
reporter
);
}
done:
read_unlock
(
&
dev_base_lock
);
return
0
;
}
*
start
=
buffer
+
(
offset
-
begin
);
len
-=
(
offset
-
begin
);
if
(
len
>
length
)
len
=
length
;
if
(
len
<
0
)
len
=
0
;
return
len
;
static
struct
seq_operations
igmp_mc_seq_ops
=
{
.
start
=
igmp_mc_seq_start
,
.
next
=
igmp_mc_seq_next
,
.
stop
=
igmp_mc_seq_stop
,
.
show
=
igmp_mc_seq_show
,
};
static
int
igmp_mc_seq_open
(
struct
inode
*
inode
,
struct
file
*
file
)
{
struct
seq_file
*
seq
;
int
rc
=
-
ENOMEM
;
struct
igmp_mc_iter_state
*
s
=
kmalloc
(
sizeof
(
*
s
),
GFP_KERNEL
);
if
(
!
s
)
goto
out
;
rc
=
seq_open
(
file
,
&
igmp_mc_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
;
}
static
struct
file_operations
igmp_mc_seq_fops
=
{
.
owner
=
THIS_MODULE
,
.
open
=
igmp_mc_seq_open
,
.
read
=
seq_read
,
.
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
;
...
...
@@ -2214,3 +2314,15 @@ int ip_mcf_procinfo(char *buffer, char **start, off_t offset, int length)
return
len
;
}
#ifdef CONFIG_PROC_FS
int
__init
igmp_mc_proc_init
(
void
)
{
struct
proc_dir_entry
*
p
;
p
=
create_proc_entry
(
"igmp"
,
S_IRUGO
,
proc_net
);
if
(
p
)
p
->
proc_fops
=
&
igmp_mc_seq_fops
;
return
0
;
}
#endif
This diff is collapsed.
Click to expand it.
net/ipv4/ip_output.c
View file @
24818d6e
...
...
@@ -1314,7 +1314,7 @@ void __init ip_init(void)
inet_initpeers
();
#ifdef CONFIG_IP_MULTICAST
proc_net_create
(
"igmp"
,
0
,
ip_mc_procinfo
);
igmp_mc_proc_init
(
);
#endif
proc_net_create
(
"mcfilter"
,
0
,
ip_mcf_procinfo
);
}
This diff is collapsed.
Click to expand it.
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