[PATCH] ipv4: convert /proc/net/raw to seq_file

Arnaldo Carvalho de Melo (acme@conectiva.com.br)
Thu, 14 Nov 2002 13:07:23 -0200

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Next message: Arnaldo Carvalho de Melo: "[PATCH] drivers/acpi/ac.c: convert to seq_file"
Previous message: Jeff Garzik: "Re: Bugzilla bug tracking database for 2.5 now available."

Hi David,

Please pull from:

master.kernel.org:/home/acme/BK/net-2.5

Now there are three outstanding changesets there.

- Arnaldo

You can import this changeset into BK by piping this whole message to:
'| bk receive [path to repository]' or apply the patch as usual.

===================================================================

ChangeSet@1.827, 2002-11-14 12:48:56-02:00, acme@conectiva.com.br
o ipv4: convert /proc/net/raw to seq_file

Also:

. prototypes for _proc_init functions only needed in af_inet.c, and only
if CONFIG_PROC_FS is set.
. net/socket.c needs include <linux/seq_file.h>
. review raw.c needed includes

diff -Nru a/include/linux/udp.h b/include/linux/udp.h
--- a/include/linux/udp.h Thu Nov 14 12:55:45 2002
+++ b/include/linux/udp.h Thu Nov 14 12:55:45 2002
@@ -57,7 +57,4 @@

#define udp_sk(__sk) (&((struct udp_sock *)__sk)->udp)

-extern int udp_proc_init(void);
-extern void udp_proc_exit(void);
-
#endif /* _LINUX_UDP_H */
diff -Nru a/include/net/ip_fib.h b/include/net/ip_fib.h
--- a/include/net/ip_fib.h Thu Nov 14 12:55:45 2002
+++ b/include/net/ip_fib.h Thu Nov 14 12:55:45 2002
@@ -276,7 +276,4 @@
#endif
}

-extern int fib_proc_init(void);
-extern void fib_proc_exit(void);
-
#endif /* _NET_FIB_H */
diff -Nru a/include/net/udp.h b/include/net/udp.h
--- a/include/net/udp.h Thu Nov 14 12:55:45 2002
+++ b/include/net/udp.h Thu Nov 14 12:55:45 2002
@@ -76,6 +76,4 @@
#define UDP_INC_STATS_BH(field) SNMP_INC_STATS_BH(udp_statistics, field)
#define UDP_INC_STATS_USER(field) SNMP_INC_STATS_USER(udp_statistics, field)

-extern int udp_proc_init(void);
-
#endif /* _UDP_H */
diff -Nru a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
--- a/net/ipv4/af_inet.c Thu Nov 14 12:55:45 2002
+++ b/net/ipv4/af_inet.c Thu Nov 14 12:55:45 2002
@@ -1160,16 +1160,20 @@
/* ------------------------------------------------------------------------ */

#ifdef CONFIG_PROC_FS
-
-extern int ip_misc_proc_init(void);
-extern int raw_get_info(char *, char **, off_t, int);
-extern int tcp_get_info(char *, char **, off_t, int);
+extern int fib_proc_init(void);
+extern void fib_proc_exit(void);
+extern int ip_misc_proc_init(void);
+extern int raw_proc_init(void);
+extern void raw_proc_exit(void);
+extern int tcp_get_info(char *buffer, char **start, off_t offset, int length);
+extern int udp_proc_init(void);
+extern void udp_proc_exit(void);

int __init ipv4_proc_init(void)
{
int rc = 0;

- if (!proc_net_create("raw", 0, raw_get_info))
+ if (raw_proc_init())
goto out_raw;
if (!proc_net_create("tcp", 0, tcp_get_info))
goto out_tcp;
@@ -1188,7 +1192,7 @@
out_udp:
proc_net_remove("tcp");
out_tcp:
- proc_net_remove("raw");
+ raw_proc_exit();
out_raw:
rc = -ENOMEM;
goto out;
diff -Nru a/net/ipv4/fib_hash.c b/net/ipv4/fib_hash.c
--- a/net/ipv4/fib_hash.c Thu Nov 14 12:55:45 2002
+++ b/net/ipv4/fib_hash.c Thu Nov 14 12:55:45 2002
@@ -1092,16 +1092,4 @@
{
remove_proc_entry("route", proc_net);
}
-
-#else /* CONFIG_PROC_FS */
-
-int __init fib_proc_init(void)
-{
- return 0;
-}
-
-void __init fib_proc_exit(void)
-{
- return 0;
-}
#endif /* CONFIG_PROC_FS */
diff -Nru a/net/ipv4/raw.c b/net/ipv4/raw.c
--- a/net/ipv4/raw.c Thu Nov 14 12:55:45 2002
+++ b/net/ipv4/raw.c Thu Nov 14 12:55:45 2002
@@ -40,31 +40,42 @@
*/

#include <linux/config.h>
-#include <asm/system.h>
+#include <asm/atomic.h>
+#include <asm/byteorder.h>
+#include <asm/current.h>
#include <asm/uaccess.h>
#include <asm/ioctls.h>
#include <linux/types.h>
-#include <linux/sched.h>
+#include <linux/stddef.h>
+#include <linux/slab.h>
#include <linux/errno.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
+#include <linux/aio.h>
#include <linux/kernel.h>
-#include <linux/fcntl.h>
+#include <linux/spinlock.h>
+#include <linux/sockios.h>
#include <linux/socket.h>
#include <linux/in.h>
-#include <linux/inet.h>
#include <linux/netdevice.h>
-#include <linux/mroute.h>
-#include <net/tcp.h>
-#include <net/protocol.h>
+#include <linux/in_route.h>
+#include <linux/route.h>
+#include <linux/tcp.h>
#include <linux/skbuff.h>
+#include <net/dst.h>
#include <net/sock.h>
+#include <linux/gfp.h>
+#include <linux/ip.h>
+#include <net/ip.h>
#include <net/icmp.h>
#include <net/udp.h>
#include <net/raw.h>
+#include <net/snmp.h>
#include <net/inet_common.h>
#include <net/checksum.h>
#include <net/xfrm.h>
+#include <linux/rtnetlink.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/netfilter.h>
#include <linux/netfilter_ipv4.h>

struct sock *raw_v4_htable[RAWV4_HTABLE_SIZE];
@@ -656,7 +667,95 @@
}
}

-static void get_raw_sock(struct sock *sp, char *tmpbuf, int i)
+struct proto raw_prot = {
+ .name = "RAW",
+ .close = raw_close,
+ .connect = udp_connect,
+ .disconnect = udp_disconnect,
+ .ioctl = raw_ioctl,
+ .init = raw_init,
+ .setsockopt = raw_setsockopt,
+ .getsockopt = raw_getsockopt,
+ .sendmsg = raw_sendmsg,
+ .recvmsg = raw_recvmsg,
+ .bind = raw_bind,
+ .backlog_rcv = raw_rcv_skb,
+ .hash = raw_v4_hash,
+ .unhash = raw_v4_unhash,
+};
+
+#ifdef CONFIG_PROC_FS
+struct raw_iter_state {
+ int bucket;
+};
+
+#define raw_seq_private(seq) ((struct raw_iter_state *)&seq->private)
+
+static struct sock *raw_get_first(struct seq_file *seq)
+{
+ struct sock *sk = NULL;
+ struct raw_iter_state* state = raw_seq_private(seq);
+
+ for (state->bucket = 0; state->bucket < RAWV4_HTABLE_SIZE; ++state->bucket) {
+ sk = raw_v4_htable[state->bucket];
+ while (sk && sk->family != PF_INET)
+ sk = sk->next;
+ if (sk)
+ break;
+ }
+ return sk;
+}
+
+static struct sock *raw_get_next(struct seq_file *seq, struct sock *sk)
+{
+ struct raw_iter_state* state = raw_seq_private(seq);
+
+ do {
+ sk = sk->next;
+try_again:
+ } while (sk && sk->family != PF_INET);
+
+ if (!sk && ++state->bucket < RAWV4_HTABLE_SIZE) {
+ sk = raw_v4_htable[state->bucket];
+ goto try_again;
+ }
+ return sk;
+}
+
+static struct sock *raw_get_idx(struct seq_file *seq, loff_t pos)
+{
+ struct sock *sk = raw_get_first(seq);
+
+ if (sk)
+ while (pos && (sk = raw_get_next(seq, sk)) != NULL)
+ --pos;
+ return pos ? NULL : sk;
+}
+
+static void *raw_seq_start(struct seq_file *seq, loff_t *pos)
+{
+ read_lock(&raw_v4_lock);
+ return *pos ? raw_get_idx(seq, *pos) : (void *)1;
+}
+
+static void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ struct sock *sk;
+
+ if (v == (void *)1)
+ sk = raw_get_first(seq);
+ else
+ sk = raw_get_next(seq, v);
+ ++*pos;
+ return sk;
+}
+
+static void raw_seq_stop(struct seq_file *seq, void *v)
+{
+ read_unlock(&raw_v4_lock);
+}
+
+static __inline__ char *get_raw_sock(struct sock *sp, char *tmpbuf, int i)
{
struct inet_opt *inet = inet_sk(sp);
unsigned int dest = inet->daddr,
@@ -668,65 +767,63 @@
" %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p",
i, src, srcp, dest, destp, sp->state,
atomic_read(&sp->wmem_alloc), atomic_read(&sp->rmem_alloc),
- 0, 0L, 0,
- sock_i_uid(sp), 0,
- sock_i_ino(sp),
+ 0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
atomic_read(&sp->refcnt), sp);
+ return tmpbuf;
}

-int raw_get_info(char *buffer, char **start, off_t offset, int length)
+static int raw_seq_show(struct seq_file *seq, void *v)
{
- int len = 0, num = 0, i;
- off_t pos = 128;
- off_t begin;
char tmpbuf[129];

- if (offset < 128)
- len += sprintf(buffer, "%-127s\n",
+ if (v == (void *)1)
+ seq_printf(seq, "%-127s\n",
" sl local_address rem_address st tx_queue "
"rx_queue tr tm->when retrnsmt uid timeout "
"inode");
- read_lock(&raw_v4_lock);
- for (i = 0; i < RAWV4_HTABLE_SIZE; i++) {
- struct sock *sk;
+ else {
+ struct raw_iter_state *state = raw_seq_private(seq);

- for (sk = raw_v4_htable[i]; sk; sk = sk->next, num++) {
- if (sk->family != PF_INET)
- continue;
- pos += 128;
- if (pos <= offset)
- continue;
- get_raw_sock(sk, tmpbuf, i);
- len += sprintf(buffer + len, "%-127s\n", tmpbuf);
- if (len >= length)
- goto out;
- }
+ seq_printf(seq, "%-127s\n",
+ get_raw_sock(v, tmpbuf, state->bucket));
}
-out:
- read_unlock(&raw_v4_lock);
- begin = len - (pos - offset);
- *start = buffer + begin;
- len -= begin;
- if (len > length)
- len = length;
- if (len < 0)
- len = 0;
- return len;
+ return 0;
}

-struct proto raw_prot = {
- .name = "RAW",
- .close = raw_close,
- .connect = udp_connect,
- .disconnect = udp_disconnect,
- .ioctl = raw_ioctl,
- .init = raw_init,
- .setsockopt = raw_setsockopt,
- .getsockopt = raw_getsockopt,
- .sendmsg = raw_sendmsg,
- .recvmsg = raw_recvmsg,
- .bind = raw_bind,
- .backlog_rcv = raw_rcv_skb,
- .hash = raw_v4_hash,
- .unhash = raw_v4_unhash,
+static struct seq_operations raw_seq_ops = {
+ .start = raw_seq_start,
+ .next = raw_seq_next,
+ .stop = raw_seq_stop,
+ .show = raw_seq_show,
+};
+
+static int raw_seq_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &raw_seq_ops);
+}
+
+static struct file_operations raw_seq_fops = {
+ .open = raw_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
};
+
+int __init raw_proc_init(void)
+{
+ struct proc_dir_entry *p;
+ int rc = 0;
+
+ p = create_proc_entry("raw", S_IRUGO, proc_net);
+ if (p)
+ p->proc_fops = &raw_seq_fops;
+ else
+ rc = -ENOMEM;
+ return rc;
+}
+
+void __init raw_proc_exit(void)
+{
+ remove_proc_entry("raw", proc_net);
+}
+#endif /* CONFIG_PROC_FS */
diff -Nru a/net/ipv4/udp.c b/net/ipv4/udp.c
--- a/net/ipv4/udp.c Thu Nov 14 12:55:45 2002
+++ b/net/ipv4/udp.c Thu Nov 14 12:55:45 2002
@@ -1377,16 +1377,4 @@
{
remove_proc_entry("udp", proc_net);
}
-
-#else /* CONFIG_PROC_FS */
-
-int __init udp_proc_init(void)
-{
- return 0;
-}
-
-void __init udp_proc_exit(void)
-{
- return 0;
-}
#endif /* CONFIG_PROC_FS */
diff -Nru a/net/socket.c b/net/socket.c
--- a/net/socket.c Thu Nov 14 12:55:45 2002
+++ b/net/socket.c Thu Nov 14 12:55:45 2002
@@ -66,6 +66,7 @@
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
#include <linux/wanrouter.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>

===================================================================

This BitKeeper patch contains the following changesets:
1.827
## Wrapped with gzip_uu ##

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`
end
-
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Next message: Arnaldo Carvalho de Melo: "[PATCH] drivers/acpi/ac.c: convert to seq_file"
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