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-rw-r--r--net/9p/Kconfig10
-rw-r--r--net/9p/Makefile5
-rw-r--r--net/9p/client.c13
-rw-r--r--net/9p/conv.c32
-rw-r--r--net/9p/mod.c71
-rw-r--r--net/9p/mux.c5
-rw-r--r--net/9p/sysctl.c81
-rw-r--r--net/9p/trans_fd.c419
-rw-r--r--net/atm/br2684.c121
-rw-r--r--net/dccp/input.c3
-rw-r--r--net/dccp/sysctl.c3
-rw-r--r--net/ipv4/inet_fragment.c89
-rw-r--r--net/ipv4/ip_fragment.c156
-rw-r--r--net/ipv6/af_inet6.c1
-rw-r--r--net/ipv6/netfilter/nf_conntrack_reasm.c112
-rw-r--r--net/ipv6/reassembly.c131
-rw-r--r--net/irda/ircomm/ircomm_tty_attach.c15
-rw-r--r--net/rxrpc/af_rxrpc.c1
-rw-r--r--net/rxrpc/ar-key.c32
-rw-r--r--net/sctp/protocol.c1
-rw-r--r--net/socket.c20
-rw-r--r--net/sunrpc/rpc_pipe.c2
-rw-r--r--net/sunrpc/xprtrdma/verbs.c3
23 files changed, 625 insertions, 701 deletions
diff --git a/net/9p/Kconfig b/net/9p/Kconfig
index 66821cd64a76..eecbf12f6393 100644
--- a/net/9p/Kconfig
+++ b/net/9p/Kconfig
@@ -13,6 +13,16 @@ menuconfig NET_9P
If unsure, say N.
+config NET_9P_FD
+ depends on NET_9P
+ default y if NET_9P
+ tristate "9P File Descriptor Transports (Experimental)"
+ help
+ This builds support for file descriptor transports for 9p
+ which includes support for TCP/IP, named pipes, or passed
+ file descriptors. TCP/IP is the default transport for 9p,
+ so if you are going to use 9p, you'll likely want this.
+
config NET_9P_DEBUG
bool "Debug information"
depends on NET_9P
diff --git a/net/9p/Makefile b/net/9p/Makefile
index 85b3a7838acf..5059bc06f8f3 100644
--- a/net/9p/Makefile
+++ b/net/9p/Makefile
@@ -1,8 +1,8 @@
obj-$(CONFIG_NET_9P) := 9pnet.o
+obj-$(CONFIG_NET_9P_FD) += 9pnet_fd.o
9pnet-objs := \
mod.o \
- trans_fd.o \
mux.o \
client.o \
conv.o \
@@ -10,4 +10,5 @@ obj-$(CONFIG_NET_9P) := 9pnet.o
fcprint.o \
util.o \
-9pnet-$(CONFIG_SYSCTL) += sysctl.o
+9pnet_fd-objs := \
+ trans_fd.o \
diff --git a/net/9p/client.c b/net/9p/client.c
index cb170750337c..af9199364049 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -30,6 +30,7 @@
#include <linux/sched.h>
#include <linux/uaccess.h>
#include <net/9p/9p.h>
+#include <linux/parser.h>
#include <net/9p/transport.h>
#include <net/9p/conn.h>
#include <net/9p/client.h>
@@ -38,7 +39,7 @@ static struct p9_fid *p9_fid_create(struct p9_client *clnt);
static void p9_fid_destroy(struct p9_fid *fid);
static struct p9_stat *p9_clone_stat(struct p9_stat *st, int dotu);
-struct p9_client *p9_client_create(struct p9_transport *trans, int msize,
+struct p9_client *p9_client_create(struct p9_trans *trans, int msize,
int dotu)
{
int err, n;
@@ -146,7 +147,7 @@ void p9_client_disconnect(struct p9_client *clnt)
EXPORT_SYMBOL(p9_client_disconnect);
struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid,
- char *uname, char *aname)
+ char *uname, u32 n_uname, char *aname)
{
int err;
struct p9_fcall *tc, *rc;
@@ -165,7 +166,8 @@ struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid,
goto error;
}
- tc = p9_create_tattach(fid->fid, afid?afid->fid:P9_NOFID, uname, aname);
+ tc = p9_create_tattach(fid->fid, afid?afid->fid:P9_NOFID, uname, aname,
+ n_uname, clnt->dotu);
if (IS_ERR(tc)) {
err = PTR_ERR(tc);
tc = NULL;
@@ -190,7 +192,8 @@ error:
}
EXPORT_SYMBOL(p9_client_attach);
-struct p9_fid *p9_client_auth(struct p9_client *clnt, char *uname, char *aname)
+struct p9_fid *p9_client_auth(struct p9_client *clnt, char *uname,
+ u32 n_uname, char *aname)
{
int err;
struct p9_fcall *tc, *rc;
@@ -209,7 +212,7 @@ struct p9_fid *p9_client_auth(struct p9_client *clnt, char *uname, char *aname)
goto error;
}
- tc = p9_create_tauth(fid->fid, uname, aname);
+ tc = p9_create_tauth(fid->fid, uname, aname, n_uname, clnt->dotu);
if (IS_ERR(tc)) {
err = PTR_ERR(tc);
tc = NULL;
diff --git a/net/9p/conv.c b/net/9p/conv.c
index d979d958ea19..aa2aa9884f95 100644
--- a/net/9p/conv.c
+++ b/net/9p/conv.c
@@ -547,7 +547,8 @@ error:
}
EXPORT_SYMBOL(p9_create_tversion);
-struct p9_fcall *p9_create_tauth(u32 afid, char *uname, char *aname)
+struct p9_fcall *p9_create_tauth(u32 afid, char *uname, char *aname,
+ u32 n_uname, int dotu)
{
int size;
struct p9_fcall *fc;
@@ -555,7 +556,16 @@ struct p9_fcall *p9_create_tauth(u32 afid, char *uname, char *aname)
struct cbuf *bufp = &buffer;
/* afid[4] uname[s] aname[s] */
- size = 4 + 2 + strlen(uname) + 2 + strlen(aname);
+ size = 4 + 2 + 2;
+ if (uname)
+ size += strlen(uname);
+
+ if (aname)
+ size += strlen(aname);
+
+ if (dotu)
+ size += 4; /* n_uname */
+
fc = p9_create_common(bufp, size, P9_TAUTH);
if (IS_ERR(fc))
goto error;
@@ -563,6 +573,8 @@ struct p9_fcall *p9_create_tauth(u32 afid, char *uname, char *aname)
p9_put_int32(bufp, afid, &fc->params.tauth.afid);
p9_put_str(bufp, uname, &fc->params.tauth.uname);
p9_put_str(bufp, aname, &fc->params.tauth.aname);
+ if (dotu)
+ p9_put_int32(bufp, n_uname, &fc->params.tauth.n_uname);
if (buf_check_overflow(bufp)) {
kfree(fc);
@@ -574,7 +586,8 @@ error:
EXPORT_SYMBOL(p9_create_tauth);
struct p9_fcall *
-p9_create_tattach(u32 fid, u32 afid, char *uname, char *aname)
+p9_create_tattach(u32 fid, u32 afid, char *uname, char *aname,
+ u32 n_uname, int dotu)
{
int size;
struct p9_fcall *fc;
@@ -582,7 +595,16 @@ p9_create_tattach(u32 fid, u32 afid, char *uname, char *aname)
struct cbuf *bufp = &buffer;
/* fid[4] afid[4] uname[s] aname[s] */
- size = 4 + 4 + 2 + strlen(uname) + 2 + strlen(aname);
+ size = 4 + 4 + 2 + 2;
+ if (uname)
+ size += strlen(uname);
+
+ if (aname)
+ size += strlen(aname);
+
+ if (dotu)
+ size += 4; /* n_uname */
+
fc = p9_create_common(bufp, size, P9_TATTACH);
if (IS_ERR(fc))
goto error;
@@ -591,6 +613,8 @@ p9_create_tattach(u32 fid, u32 afid, char *uname, char *aname)
p9_put_int32(bufp, afid, &fc->params.tattach.afid);
p9_put_str(bufp, uname, &fc->params.tattach.uname);
p9_put_str(bufp, aname, &fc->params.tattach.aname);
+ if (dotu)
+ p9_put_int32(bufp, n_uname, &fc->params.tattach.n_uname);
error:
return fc;
diff --git a/net/9p/mod.c b/net/9p/mod.c
index 4f9e1d2ac257..41d70f47375d 100644
--- a/net/9p/mod.c
+++ b/net/9p/mod.c
@@ -27,6 +27,10 @@
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <net/9p/9p.h>
+#include <linux/fs.h>
+#include <linux/parser.h>
+#include <net/9p/transport.h>
+#include <linux/list.h>
#ifdef CONFIG_NET_9P_DEBUG
unsigned int p9_debug_level = 0; /* feature-rific global debug level */
@@ -37,8 +41,64 @@ MODULE_PARM_DESC(debug, "9P debugging level");
extern int p9_mux_global_init(void);
extern void p9_mux_global_exit(void);
-extern int p9_sysctl_register(void);
-extern void p9_sysctl_unregister(void);
+
+/*
+ * Dynamic Transport Registration Routines
+ *
+ */
+
+static LIST_HEAD(v9fs_trans_list);
+static struct p9_trans_module *v9fs_default_transport;
+
+/**
+ * v9fs_register_trans - register a new transport with 9p
+ * @m - structure describing the transport module and entry points
+ *
+ */
+void v9fs_register_trans(struct p9_trans_module *m)
+{
+ list_add_tail(&m->list, &v9fs_trans_list);
+ if (m->def)
+ v9fs_default_transport = m;
+}
+EXPORT_SYMBOL(v9fs_register_trans);
+
+/**
+ * v9fs_match_trans - match transport versus registered transports
+ * @arg: string identifying transport
+ *
+ */
+struct p9_trans_module *v9fs_match_trans(const substring_t *name)
+{
+ struct list_head *p;
+ struct p9_trans_module *t = NULL;
+
+ list_for_each(p, &v9fs_trans_list) {
+ t = list_entry(p, struct p9_trans_module, list);
+ if (strncmp(t->name, name->from, name->to-name->from) == 0)
+ break;
+ }
+ return t;
+}
+EXPORT_SYMBOL(v9fs_match_trans);
+
+/**
+ * v9fs_default_trans - returns pointer to default transport
+ *
+ */
+
+struct p9_trans_module *v9fs_default_trans(void)
+{
+ if (v9fs_default_transport)
+ return v9fs_default_transport;
+ else if (!list_empty(&v9fs_trans_list))
+ return list_first_entry(&v9fs_trans_list,
+ struct p9_trans_module, list);
+ else
+ return NULL;
+}
+EXPORT_SYMBOL(v9fs_default_trans);
+
/**
* v9fs_init - Initialize module
@@ -56,12 +116,6 @@ static int __init init_p9(void)
return ret;
}
- ret = p9_sysctl_register();
- if (ret) {
- printk(KERN_WARNING "9p: registering sysctl failed\n");
- return ret;
- }
-
return ret;
}
@@ -72,7 +126,6 @@ static int __init init_p9(void)
static void __exit exit_p9(void)
{
- p9_sysctl_unregister();
p9_mux_global_exit();
}
diff --git a/net/9p/mux.c b/net/9p/mux.c
index 5d70558c4c61..f14014793bed 100644
--- a/net/9p/mux.c
+++ b/net/9p/mux.c
@@ -31,6 +31,7 @@
#include <linux/idr.h>
#include <linux/mutex.h>
#include <net/9p/9p.h>
+#include <linux/parser.h>
#include <net/9p/transport.h>
#include <net/9p/conn.h>
@@ -71,7 +72,7 @@ struct p9_conn {
struct p9_mux_poll_task *poll_task;
int msize;
unsigned char *extended;
- struct p9_transport *trans;
+ struct p9_trans *trans;
struct p9_idpool *tagpool;
int err;
wait_queue_head_t equeue;
@@ -271,7 +272,7 @@ static void p9_mux_poll_stop(struct p9_conn *m)
* @msize - maximum message size
* @extended - pointer to the extended flag
*/
-struct p9_conn *p9_conn_create(struct p9_transport *trans, int msize,
+struct p9_conn *p9_conn_create(struct p9_trans *trans, int msize,
unsigned char *extended)
{
int i, n;
diff --git a/net/9p/sysctl.c b/net/9p/sysctl.c
deleted file mode 100644
index 8b61027a24ea..000000000000
--- a/net/9p/sysctl.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * net/9p/sysctl.c
- *
- * 9P sysctl interface
- *
- * Copyright (C) 2007 by Latchesar Ionkov <lucho@ionkov.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to:
- * Free Software Foundation
- * 51 Franklin Street, Fifth Floor
- * Boston, MA 02111-1301 USA
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/sysctl.h>
-#include <linux/init.h>
-#include <net/9p/9p.h>
-
-static struct ctl_table p9_table[] = {
-#ifdef CONFIG_NET_9P_DEBUG
- {
- .ctl_name = CTL_UNNUMBERED,
- .procname = "debug",
- .data = &p9_debug_level,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
-#endif
- {},
-};
-
-static struct ctl_table p9_net_table[] = {
- {
- .ctl_name = CTL_UNNUMBERED,
- .procname = "9p",
- .maxlen = 0,
- .mode = 0555,
- .child = p9_table,
- },
- {},
-};
-
-static struct ctl_table p9_ctl_table[] = {
- {
- .ctl_name = CTL_NET,
- .procname = "net",
- .maxlen = 0,
- .mode = 0555,
- .child = p9_net_table,
- },
- {},
-};
-
-static struct ctl_table_header *p9_table_header;
-
-int __init p9_sysctl_register(void)
-{
- p9_table_header = register_sysctl_table(p9_ctl_table);
- if (!p9_table_header)
- return -ENOMEM;
-
- return 0;
-}
-
-void __exit p9_sysctl_unregister(void)
-{
- unregister_sysctl_table(p9_table_header);
-}
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index fd636e94358f..30269a4ff22a 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -5,7 +5,7 @@
*
* Copyright (C) 2006 by Russ Cox <rsc@swtch.com>
* Copyright (C) 2004-2005 by Latchesar Ionkov <lucho@ionkov.net>
- * Copyright (C) 2004-2005 by Eric Van Hensbergen <ericvh@gmail.com>
+ * Copyright (C) 2004-2007 by Eric Van Hensbergen <ericvh@gmail.com>
* Copyright (C) 1997-2002 by Ron Minnich <rminnich@sarnoff.com>
*
* This program is free software; you can redistribute it and/or modify
@@ -36,160 +36,114 @@
#include <linux/inet.h>
#include <linux/idr.h>
#include <linux/file.h>
+#include <linux/parser.h>
#include <net/9p/9p.h>
#include <net/9p/transport.h>
#define P9_PORT 564
+#define MAX_SOCK_BUF (64*1024)
+
+
+struct p9_fd_opts {
+ int rfd;
+ int wfd;
+ u16 port;
+};
struct p9_trans_fd {
struct file *rd;
struct file *wr;
};
-static int p9_socket_open(struct p9_transport *trans, struct socket *csocket);
-static int p9_fd_open(struct p9_transport *trans, int rfd, int wfd);
-static int p9_fd_read(struct p9_transport *trans, void *v, int len);
-static int p9_fd_write(struct p9_transport *trans, void *v, int len);
-static unsigned int p9_fd_poll(struct p9_transport *trans,
- struct poll_table_struct *pt);
-static void p9_fd_close(struct p9_transport *trans);
-
-struct p9_transport *p9_trans_create_tcp(const char *addr, int port)
-{
- int err;
- struct p9_transport *trans;
- struct socket *csocket;
- struct sockaddr_in sin_server;
-
- csocket = NULL;
- trans = kmalloc(sizeof(struct p9_transport), GFP_KERNEL);
- if (!trans)
- return ERR_PTR(-ENOMEM);
-
- trans->write = p9_fd_write;
- trans->read = p9_fd_read;
- trans->close = p9_fd_close;
- trans->poll = p9_fd_poll;
-
- sin_server.sin_family = AF_INET;
- sin_server.sin_addr.s_addr = in_aton(addr);
- sin_server.sin_port = htons(port);
- sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, &csocket);
-
- if (!csocket) {
- P9_EPRINTK(KERN_ERR, "p9_trans_tcp: problem creating socket\n");
- err = -EIO;
- goto error;
- }
-
- err = csocket->ops->connect(csocket,
- (struct sockaddr *)&sin_server,
- sizeof(struct sockaddr_in), 0);
- if (err < 0) {
- P9_EPRINTK(KERN_ERR,
- "p9_trans_tcp: problem connecting socket to %s\n",
- addr);
- goto error;
- }
-
- err = p9_socket_open(trans, csocket);
- if (err < 0)
- goto error;
+/*
+ * Option Parsing (code inspired by NFS code)
+ * - a little lazy - parse all fd-transport options
+ */
- return trans;
+enum {
+ /* Options that take integer arguments */
+ Opt_port, Opt_rfdno, Opt_wfdno,
+};
-error:
- if (csocket)
- sock_release(csocket);
+static match_table_t tokens = {
+ {Opt_port, "port=%u"},
+ {Opt_rfdno, "rfdno=%u"},
+ {Opt_wfdno, "wfdno=%u"},
+};
- kfree(trans);
- return ERR_PTR(err);
-}
-EXPORT_SYMBOL(p9_trans_create_tcp);
+/**
+ * v9fs_parse_options - parse mount options into session structure
+ * @options: options string passed from mount
+ * @v9ses: existing v9fs session information
+ *
+ */
-struct p9_transport *p9_trans_create_unix(const char *addr)
+static void parse_opts(char *options, struct p9_fd_opts *opts)
{
- int err;
- struct socket *csocket;
- struct sockaddr_un sun_server;
- struct p9_transport *trans;
-
- csocket = NULL;
- trans = kmalloc(sizeof(struct p9_transport), GFP_KERNEL);
- if (!trans)
- return ERR_PTR(-ENOMEM);
+ char *p;
+ substring_t args[MAX_OPT_ARGS];
+ int option;
+ int ret;
- trans->write = p9_fd_write;
- trans->read = p9_fd_read;
- trans->close = p9_fd_close;
- trans->poll = p9_fd_poll;
+ opts->port = P9_PORT;
+ opts->rfd = ~0;
+ opts->wfd = ~0;
- if (strlen(addr) > UNIX_PATH_MAX) {
- P9_EPRINTK(KERN_ERR, "p9_trans_unix: address too long: %s\n",
- addr);
- err = -ENAMETOOLONG;
- goto error;
- }
+ if (!options)
+ return;
- sun_server.sun_family = PF_UNIX;
- strcpy(sun_server.sun_path, addr);
- sock_create_kern(PF_UNIX, SOCK_STREAM, 0, &csocket);
- err = csocket->ops->connect(csocket, (struct sockaddr *)&sun_server,
- sizeof(struct sockaddr_un) - 1, 0);
- if (err < 0) {
- P9_EPRINTK(KERN_ERR,
- "p9_trans_unix: problem connecting socket: %s: %d\n",
- addr, err);
- goto error;
+ while ((p = strsep(&options, ",")) != NULL) {
+ int token;
+ if (!*p)
+ continue;
+ token = match_token(p, tokens, args);
+ ret = match_int(&args[0], &option);
+ if (ret < 0) {
+ P9_DPRINTK(P9_DEBUG_ERROR,
+ "integer field, but no integer?\n");
+ continue;
+ }
+ switch (token) {
+ case Opt_port:
+ opts->port = option;
+ break;
+ case Opt_rfdno:
+ opts->rfd = option;
+ break;
+ case Opt_wfdno:
+ opts->wfd = option;
+ break;
+ default:
+ continue;
+ }
}
-
- err = p9_socket_open(trans, csocket);
- if (err < 0)
- goto error;
-
- return trans;
-
-error:
- if (csocket)
- sock_release(csocket);
-
- kfree(trans);
- return ERR_PTR(err);
}
-EXPORT_SYMBOL(p9_trans_create_unix);
-struct p9_transport *p9_trans_create_fd(int rfd, int wfd)
+static int p9_fd_open(struct p9_trans *trans, int rfd, int wfd)
{
- int err;
- struct p9_transport *trans;
+ struct p9_trans_fd *ts = kmalloc(sizeof(struct p9_trans_fd),
+ GFP_KERNEL);
+ if (!ts)
+ return -ENOMEM;
- if (rfd == ~0 || wfd == ~0) {
- printk(KERN_ERR "v9fs: Insufficient options for proto=fd\n");
- return ERR_PTR(-ENOPROTOOPT);
+ ts->rd = fget(rfd);
+ ts->wr = fget(wfd);
+ if (!ts->rd || !ts->wr) {
+ if (ts->rd)
+ fput(ts->rd);
+ if (ts->wr)
+ fput(ts->wr);
+ kfree(ts);
+ return -EIO;
}
- trans = kmalloc(sizeof(struct p9_transport), GFP_KERNEL);
- if (!trans)
- return ERR_PTR(-ENOMEM);
-
- trans->write = p9_fd_write;
- trans->read = p9_fd_read;
- trans->close = p9_fd_close;
- trans->poll = p9_fd_poll;
-
- err = p9_fd_open(trans, rfd, wfd);
- if (err < 0)
- goto error;
-
- return trans;
+ trans->priv = ts;
+ trans->status = Connected;
-error:
- kfree(trans);
- return ERR_PTR(err);
+ return 0;
}
-EXPORT_SYMBOL(p9_trans_create_fd);
-static int p9_socket_open(struct p9_transport *trans, struct socket *csocket)
+static int p9_socket_open(struct p9_trans *trans, struct socket *csocket)
{
int fd, ret;
@@ -212,30 +166,6 @@ static int p9_socket_open(struct p9_transport *trans, struct socket *csocket)
return 0;
}
-static int p9_fd_open(struct p9_transport *trans, int rfd, int wfd)
-{
- struct p9_trans_fd *ts = kmalloc(sizeof(struct p9_trans_fd),
- GFP_KERNEL);
- if (!ts)
- return -ENOMEM;
-
- ts->rd = fget(rfd);
- ts->wr = fget(wfd);
- if (!ts->rd || !ts->wr) {
- if (ts->rd)
- fput(ts->rd);
- if (ts->wr)
- fput(ts->wr);
- kfree(ts);
- return -EIO;
- }
-
- trans->priv = ts;
- trans->status = Connected;
-
- return 0;
-}
-
/**
* p9_fd_read- read from a fd
* @v9ses: session information
@@ -243,7 +173,7 @@ static int p9_fd_open(struct p9_transport *trans, int rfd, int wfd)
* @len: size of receive buffer
*
*/
-static int p9_fd_read(struct p9_transport *trans, void *v, int len)
+static int p9_fd_read(struct p9_trans *trans, void *v, int len)
{
int ret;
struct p9_trans_fd *ts = NULL;
@@ -270,7 +200,7 @@ static int p9_fd_read(struct p9_transport *trans, void *v, int len)
* @len: size of send buffer
*
*/
-static int p9_fd_write(struct p9_transport *trans, void *v, int len)
+static int p9_fd_write(struct p9_trans *trans, void *v, int len)
{
int ret;
mm_segment_t oldfs;
@@ -297,7 +227,7 @@ static int p9_fd_write(struct p9_transport *trans, void *v, int len)
}
static unsigned int
-p9_fd_poll(struct p9_transport *trans, struct poll_table_struct *pt)
+p9_fd_poll(struct p9_trans *trans, struct poll_table_struct *pt)
{
int ret, n;
struct p9_trans_fd *ts = NULL;
@@ -341,7 +271,7 @@ end:
* @trans: private socket structure
*
*/
-static void p9_fd_close(struct p9_transport *trans)
+static void p9_fd_close(struct p9_trans *trans)
{
struct p9_trans_fd *ts;
@@ -361,3 +291,182 @@ static void p9_fd_close(struct p9_transport *trans)
kfree(ts);
}
+static struct p9_trans *p9_trans_create_tcp(const char *addr, char *args)
+{
+ int err;
+ struct p9_trans *trans;
+ struct socket *csocket;
+ struct sockaddr_in sin_server;
+ struct p9_fd_opts opts;
+
+ parse_opts(args, &opts);
+
+ csocket = NULL;
+ trans = kmalloc(sizeof(struct p9_trans), GFP_KERNEL);
+ if (!trans)
+ return ERR_PTR(-ENOMEM);
+
+ trans->write = p9_fd_write;
+ trans->read = p9_fd_read;
+ trans->close = p9_fd_close;
+ trans->poll = p9_fd_poll;
+
+ sin_server.sin_family = AF_INET;
+ sin_server.sin_addr.s_addr = in_aton(addr);
+ sin_server.sin_port = htons(opts.port);
+ sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, &csocket);
+
+ if (!csocket) {
+ P9_EPRINTK(KERN_ERR, "p9_trans_tcp: problem creating socket\n");
+ err = -EIO;
+ goto error;
+ }
+
+ err = csocket->ops->connect(csocket,
+ (struct sockaddr *)&sin_server,
+ sizeof(struct sockaddr_in), 0);
+ if (err < 0) {
+ P9_EPRINTK(KERN_ERR,
+ "p9_trans_tcp: problem connecting socket to %s\n",
+ addr);
+ goto error;
+ }
+
+ err = p9_socket_open(trans, csocket);
+ if (err < 0)
+ goto error;
+
+ return trans;
+
+error:
+ if (csocket)
+ sock_release(csocket);
+
+ kfree(trans);
+ return ERR_PTR(err);
+}
+
+static struct p9_trans *p9_trans_create_unix(const char *addr, char *args)
+{
+ int err;
+ struct socket *csocket;
+ struct sockaddr_un sun_server;
+ struct p9_trans *trans;
+
+ csocket = NULL;
+ trans = kmalloc(sizeof(struct p9_trans), GFP_KERNEL);
+ if (!trans)
+ return ERR_PTR(-ENOMEM);
+
+ trans->write = p9_fd_write;
+ trans->read = p9_fd_read;
+ trans->close = p9_fd_close;
+ trans->poll = p9_fd_poll;
+
+ if (strlen(addr) > UNIX_PATH_MAX) {
+ P9_EPRINTK(KERN_ERR, "p9_trans_unix: address too long: %s\n",
+ addr);
+ err = -ENAMETOOLONG;
+ goto error;
+ }
+
+ sun_server.sun_family = PF_UNIX;
+ strcpy(sun_server.sun_path, addr);
+ sock_create_kern(PF_UNIX, SOCK_STREAM, 0, &csocket);
+ err = csocket->ops->connect(csocket, (struct sockaddr *)&sun_server,
+ sizeof(struct sockaddr_un) - 1, 0);
+ if (err < 0) {
+ P9_EPRINTK(KERN_ERR,
+ "p9_trans_unix: problem connecting socket: %s: %d\n",
+ addr, err);
+ goto error;
+ }
+
+ err = p9_socket_open(trans, csocket);
+ if (err < 0)
+ goto error;
+
+ return trans;
+
+error:
+ if (csocket)
+ sock_release(csocket);
+
+ kfree(trans);
+ return ERR_PTR(err);
+}
+
+static struct p9_trans *p9_trans_create_fd(const char *name, char *args)
+{
+ int err;
+ struct p9_trans *trans;
+ struct p9_fd_opts opts;
+
+ parse_opts(args, &opts);
+
+ if (opts.rfd == ~0 || opts.wfd == ~0) {
+ printk(KERN_ERR "v9fs: Insufficient options for proto=fd\n");
+ return ERR_PTR(-ENOPROTOOPT);
+ }
+
+ trans = kmalloc(sizeof(struct p9_trans), GFP_KERNEL);
+ if (!trans)
+ return ERR_PTR(-ENOMEM);
+
+ trans->write = p9_fd_write;
+ trans->read = p9_fd_read;
+ trans->close = p9_fd_close;
+ trans->poll = p9_fd_poll;
+
+ err = p9_fd_open(trans, opts.rfd, opts.wfd);
+ if (err < 0)
+ goto error;
+
+ return trans;
+
+error:
+ kfree(trans);
+ return ERR_PTR(err);
+}
+
+static struct p9_trans_module p9_tcp_trans = {
+ .name = "tcp",
+ .maxsize = MAX_SOCK_BUF,
+ .def = 1,
+ .create = p9_trans_create_tcp,
+};
+
+static struct p9_trans_module p9_unix_trans = {
+ .name = "unix",
+ .maxsize = MAX_SOCK_BUF,
+ .def = 0,
+ .create = p9_trans_create_unix,
+};
+
+static struct p9_trans_module p9_fd_trans = {
+ .name = "fd",
+ .maxsize = MAX_SOCK_BUF,
+ .def = 0,
+ .create = p9_trans_create_fd,
+};
+
+static int __init p9_trans_fd_init(void)
+{
+ v9fs_register_trans(&p9_tcp_trans);
+ v9fs_register_trans(&p9_unix_trans);
+ v9fs_register_trans(&p9_fd_trans);
+
+ return 1;
+}
+
+static void __exit p9_trans_fd_exit(void) {
+ printk(KERN_ERR "Removal of 9p transports not implemented\n");
+ BUG();
+}
+
+module_init(p9_trans_fd_init);
+module_exit(p9_trans_fd_exit);
+
+MODULE_AUTHOR("Latchesar Ionkov <lucho@ionkov.net>");
+MODULE_AUTHOR("Eric Van Hensbergen <ericvh@gmail.com>");
+MODULE_LICENSE("GPL");
diff --git a/net/atm/br2684.c b/net/atm/br2684.c
index c742d37bfb97..ba6428f204f9 100644
--- a/net/atm/br2684.c
+++ b/net/atm/br2684.c
@@ -24,16 +24,6 @@ Author: Marcell GAL, 2000, XDSL Ltd, Hungary
#include "common.h"
-/*
- * Define this to use a version of the code which interacts with the higher
- * layers in a more intellegent way, by always reserving enough space for
- * our header at the begining of the packet. However, there may still be
- * some problems with programs like tcpdump. In 2.5 we'll sort out what
- * we need to do to get this perfect. For now we just will copy the packet
- * if we need space for the header
- */
-/* #define FASTER_VERSION */
-
#ifdef SKB_DEBUG
static void skb_debug(const struct sk_buff *skb)
{
@@ -69,9 +59,7 @@ struct br2684_vcc {
#ifdef CONFIG_ATM_BR2684_IPFILTER
struct br2684_filter filter;
#endif /* CONFIG_ATM_BR2684_IPFILTER */
-#ifndef FASTER_VERSION
unsigned copies_needed, copies_failed;
-#endif /* FASTER_VERSION */
};
struct br2684_dev {
@@ -147,13 +135,6 @@ static int br2684_xmit_vcc(struct sk_buff *skb, struct br2684_dev *brdev,
struct br2684_vcc *brvcc)
{
struct atm_vcc *atmvcc;
-#ifdef FASTER_VERSION
- if (brvcc->encaps == e_llc)
- memcpy(skb_push(skb, 8), llc_oui_pid_pad, 8);
- /* last 2 bytes of llc_oui_pid_pad are managed by header routines;
- yes, you got it: 8 + 2 = sizeof(llc_oui_pid_pad)
- */
-#else
int minheadroom = (brvcc->encaps == e_llc) ? 10 : 2;
if (skb_headroom(skb) < minheadroom) {
struct sk_buff *skb2 = skb_realloc_headroom(skb, minheadroom);
@@ -170,7 +151,6 @@ static int br2684_xmit_vcc(struct sk_buff *skb, struct br2684_dev *brdev,
skb_copy_to_linear_data(skb, llc_oui_pid_pad, 10);
else
memset(skb->data, 0, 2);
-#endif /* FASTER_VERSION */
skb_debug(skb);
ATM_SKB(skb)->vcc = atmvcc = brvcc->atmvcc;
@@ -237,87 +217,6 @@ static struct net_device_stats *br2684_get_stats(struct net_device *dev)
return &BRPRIV(dev)->stats;
}
-#ifdef FASTER_VERSION
-/*
- * These mirror eth_header and eth_header_cache. They are not usually
- * exported for use in modules, so we grab them from net_device
- * after ether_setup() is done with it. Bit of a hack.
- */
-static int (*my_eth_header)(struct sk_buff *, struct net_device *,
- unsigned short, void *, void *, unsigned);
-static int (*my_eth_header_cache)(struct neighbour *, struct hh_cache *);
-
-static int
-br2684_header(struct sk_buff *skb, struct net_device *dev,
- unsigned short type, void *daddr, void *saddr, unsigned len)
-{
- u16 *pad_before_eth;
- int t = my_eth_header(skb, dev, type, daddr, saddr, len);
- if (t > 0) {
- pad_before_eth = (u16 *) skb_push(skb, 2);
- *pad_before_eth = 0;
- return dev->hard_header_len; /* or return 16; ? */
- } else
- return t;
-}
-
-static int
-br2684_header_cache(struct neighbour *neigh, struct hh_cache *hh)
-{
-/* hh_data is 16 bytes long. if encaps is ether-llc we need 24, so
-xmit will add the additional header part in that case */
- u16 *pad_before_eth = (u16 *)(hh->hh_data);
- int t = my_eth_header_cache(neigh, hh);
- DPRINTK("br2684_header_cache, neigh=%p, hh_cache=%p\n", neigh, hh);
- if (t < 0)
- return t;
- else {
- *pad_before_eth = 0;
- hh->hh_len = PADLEN + ETH_HLEN;
- }
- return 0;
-}
-
-/*
- * This is similar to eth_type_trans, which cannot be used because of
- * our dev->hard_header_len
- */
-static inline __be16 br_type_trans(struct sk_buff *skb, struct net_device *dev)
-{
- struct ethhdr *eth;
- unsigned char *rawp;
- eth = eth_hdr(skb);
-
- if (is_multicast_ether_addr(eth->h_dest)) {
- if (!compare_ether_addr(eth->h_dest, dev->broadcast))
- skb->pkt_type = PACKET_BROADCAST;
- else
- skb->pkt_type = PACKET_MULTICAST;
- }
-
- else if (compare_ether_addr(eth->h_dest, dev->dev_addr))
- skb->pkt_type = PACKET_OTHERHOST;
-
- if (ntohs(eth->h_proto) >= 1536)
- return eth->h_proto;
-
- rawp = skb->data;
-
- /*
- * This is a magic hack to spot IPX packets. Older Novell breaks
- * the protocol design and runs IPX over 802.3 without an 802.2 LLC
- * layer. We look for FFFF which isn't a used 802.2 SSAP/DSAP. This
- * won't work for fault tolerant netware but does for the rest.
- */
- if (*(unsigned short *) rawp == 0xFFFF)
- return htons(ETH_P_802_3);
-
- /*
- * Real 802.2 LLC
- */
- return htons(ETH_P_802_2);
-}
-#endif /* FASTER_VERSION */
/*
* We remember when the MAC gets set, so we don't override it later with
@@ -448,17 +347,8 @@ static void br2684_push(struct atm_vcc *atmvcc, struct sk_buff *skb)
return;
}
-#ifdef FASTER_VERSION
- /* FIXME: tcpdump shows that pointer to mac header is 2 bytes earlier,
- than should be. What else should I set? */
- skb_pull(skb, plen);
- skb_set_mac_header(skb, -ETH_HLEN);
- skb->pkt_type = PACKET_HOST;
- skb->protocol = br_type_trans(skb, net_dev);
-#else
skb_pull(skb, plen - ETH_HLEN);
skb->protocol = eth_type_trans(skb, net_dev);
-#endif /* FASTER_VERSION */
#ifdef CONFIG_ATM_BR2684_IPFILTER
if (unlikely(packet_fails_filter(skb->protocol, brvcc, skb))) {
brdev->stats.rx_dropped++;
@@ -584,13 +474,6 @@ static void br2684_setup(struct net_device *netdev)
ether_setup(netdev);
brdev->net_dev = netdev;
-#ifdef FASTER_VERSION
- my_eth_header = netdev->hard_header;
- netdev->hard_header = br2684_header;
- my_eth_header_cache = netdev->hard_header_cache;
- netdev->hard_header_cache = br2684_header_cache;
- netdev->hard_header_len = sizeof(llc_oui_pid_pad) + ETH_HLEN; /* 10 + 14 */
-#endif
my_eth_mac_addr = netdev->set_mac_address;
netdev->set_mac_address = br2684_mac_addr;
netdev->hard_start_xmit = br2684_start_xmit;
@@ -719,16 +602,12 @@ static int br2684_seq_show(struct seq_file *seq, void *v)
list_for_each_entry(brvcc, &brdev->brvccs, brvccs) {
seq_printf(seq, " vcc %d.%d.%d: encaps=%s"
-#ifndef FASTER_VERSION
", failed copies %u/%u"
-#endif /* FASTER_VERSION */
"\n", brvcc->atmvcc->dev->number,
brvcc->atmvcc->vpi, brvcc->atmvcc->vci,
(brvcc->encaps == e_llc) ? "LLC" : "VC"
-#ifndef FASTER_VERSION
, brvcc->copies_failed
, brvcc->copies_needed
-#endif /* FASTER_VERSION */
);
#ifdef CONFIG_ATM_BR2684_IPFILTER
#define b1(var, byte) ((u8 *) &brvcc->filter.var)[byte]
diff --git a/net/dccp/input.c b/net/dccp/input.c
index 19d7e1dbd87e..3560a2a875a0 100644
--- a/net/dccp/input.c
+++ b/net/dccp/input.c
@@ -19,6 +19,9 @@
#include "ccid.h"
#include "dccp.h"
+/* rate-limit for syncs in reply to sequence-invalid packets; RFC 4340, 7.5.4 */
+int sysctl_dccp_sync_ratelimit __read_mostly = HZ / 8;
+
static void dccp_fin(struct sock *sk, struct sk_buff *skb)
{
sk->sk_shutdown |= RCV_SHUTDOWN;
diff --git a/net/dccp/sysctl.c b/net/dccp/sysctl.c
index 9364b2fb4dbd..c62c05039f69 100644
--- a/net/dccp/sysctl.c
+++ b/net/dccp/sysctl.c
@@ -18,9 +18,6 @@
#error This file should not be compiled without CONFIG_SYSCTL defined
#endif
-/* rate-limit for syncs in reply to sequence-invalid packets; RFC 4340, 7.5.4 */
-int sysctl_dccp_sync_ratelimit __read_mostly = HZ / 8;
-
static struct ctl_table dccp_default_table[] = {
{
.procname = "seq_window",
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index 484cf512858f..e15e04fc6661 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -136,7 +136,9 @@ void inet_frag_destroy(struct inet_frag_queue *q, struct inet_frags *f,
*work -= f->qsize;
atomic_sub(f->qsize, &f->mem);
- f->destructor(q);
+ if (f->destructor)
+ f->destructor(q);
+ kfree(q);
}
EXPORT_SYMBOL(inet_frag_destroy);
@@ -172,3 +174,88 @@ int inet_frag_evictor(struct inet_frags *f)
return evicted;
}
EXPORT_SYMBOL(inet_frag_evictor);
+
+static struct inet_frag_queue *inet_frag_intern(struct inet_frag_queue *qp_in,
+ struct inet_frags *f, unsigned int hash, void *arg)
+{
+ struct inet_frag_queue *qp;
+#ifdef CONFIG_SMP
+ struct hlist_node *n;
+#endif
+
+ write_lock(&f->lock);
+#ifdef CONFIG_SMP
+ /* With SMP race we have to recheck hash table, because
+ * such entry could be created on other cpu, while we
+ * promoted read lock to write lock.
+ */
+ hlist_for_each_entry(qp, n, &f->hash[hash], list) {
+ if (f->match(qp, arg)) {
+ atomic_inc(&qp->refcnt);
+ write_unlock(&f->lock);
+ qp_in->last_in |= COMPLETE;
+ inet_frag_put(qp_in, f);
+ return qp;
+ }
+ }
+#endif
+ qp = qp_in;
+ if (!mod_timer(&qp->timer, jiffies + f->ctl->timeout))
+ atomic_inc(&qp->refcnt);
+
+ atomic_inc(&qp->refcnt);
+ hlist_add_head(&qp->list, &f->hash[hash]);
+ list_add_tail(&qp->lru_list, &f->lru_list);
+ f->nqueues++;
+ write_unlock(&f->lock);
+ return qp;
+}
+
+static struct inet_frag_queue *inet_frag_alloc(struct inet_frags *f, void *arg)
+{
+ struct inet_frag_queue *q;
+
+ q = kzalloc(f->qsize, GFP_ATOMIC);
+ if (q == NULL)
+ return NULL;
+
+ f->constructor(q, arg);
+ atomic_add(f->qsize, &f->mem);
+ setup_timer(&q->timer, f->frag_expire, (unsigned long)q);
+ spin_lock_init(&q->lock);
+ atomic_set(&q->refcnt, 1);
+
+ return q;
+}
+
+static struct inet_frag_queue *inet_frag_create(struct inet_frags *f,
+ void *arg, unsigned int hash)
+{
+ struct inet_frag_queue *q;
+
+ q = inet_frag_alloc(f, arg);
+ if (q == NULL)
+ return NULL;
+
+ return inet_frag_intern(q, f, hash, arg);
+}
+
+struct inet_frag_queue *inet_frag_find(struct inet_frags *f, void *key,
+ unsigned int hash)
+{
+ struct inet_frag_queue *q;
+ struct hlist_node *n;
+
+ read_lock(&f->lock);
+ hlist_for_each_entry(q, n, &f->hash[hash], list) {
+ if (f->match(q, key)) {
+ atomic_inc(&q->refcnt);
+ read_unlock(&f->lock);
+ return q;
+ }
+ }
+ read_unlock(&f->lock);
+
+ return inet_frag_create(f, key, hash);
+}
+EXPORT_SYMBOL(inet_frag_find);
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 443b3f89192f..453ae041edde 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -108,6 +108,11 @@ int ip_frag_mem(void)
static int ip_frag_reasm(struct ipq *qp, struct sk_buff *prev,
struct net_device *dev);
+struct ip4_create_arg {
+ struct iphdr *iph;
+ u32 user;
+};
+
static unsigned int ipqhashfn(__be16 id, __be32 saddr, __be32 daddr, u8 prot)
{
return jhash_3words((__force u32)id << 16 | prot,
@@ -123,6 +128,19 @@ static unsigned int ip4_hashfn(struct inet_frag_queue *q)
return ipqhashfn(ipq->id, ipq->saddr, ipq->daddr, ipq->protocol);
}
+static int ip4_frag_match(struct inet_frag_queue *q, void *a)
+{
+ struct ipq *qp;
+ struct ip4_create_arg *arg = a;
+
+ qp = container_of(q, struct ipq, q);
+ return (qp->id == arg->iph->id &&
+ qp->saddr == arg->iph->saddr &&
+ qp->daddr == arg->iph->daddr &&
+ qp->protocol == arg->iph->protocol &&
+ qp->user == arg->user);
+}
+
/* Memory Tracking Functions. */
static __inline__ void frag_kfree_skb(struct sk_buff *skb, int *work)
{
@@ -132,6 +150,20 @@ static __inline__ void frag_kfree_skb(struct sk_buff *skb, int *work)
kfree_skb(skb);
}
+static void ip4_frag_init(struct inet_frag_queue *q, void *a)
+{
+ struct ipq *qp = container_of(q, struct ipq, q);
+ struct ip4_create_arg *arg = a;
+
+ qp->protocol = arg->iph->protocol;
+ qp->id = arg->iph->id;
+ qp->saddr = arg->iph->saddr;
+ qp->daddr = arg->iph->daddr;
+ qp->user = arg->user;
+ qp->peer = sysctl_ipfrag_max_dist ?
+ inet_getpeer(arg->iph->saddr, 1) : NULL;
+}
+
static __inline__ void ip4_frag_free(struct inet_frag_queue *q)
{
struct ipq *qp;
@@ -139,17 +171,6 @@ static __inline__ void ip4_frag_free(struct inet_frag_queue *q)
qp = container_of(q, struct ipq, q);
if (qp->peer)
inet_putpeer(qp->peer);
- kfree(qp);
-}
-
-static __inline__ struct ipq *frag_alloc_queue(void)
-{
- struct ipq *qp = kzalloc(sizeof(struct ipq), GFP_ATOMIC);
-
- if (!qp)
- return NULL;
- atomic_add(sizeof(struct ipq), &ip4_frags.mem);
- return qp;
}
@@ -185,7 +206,9 @@ static void ip_evictor(void)
*/
static void ip_expire(unsigned long arg)
{
- struct ipq *qp = (struct ipq *) arg;
+ struct ipq *qp;
+
+ qp = container_of((struct inet_frag_queue *) arg, struct ipq, q);
spin_lock(&qp->q.lock);
@@ -210,112 +233,30 @@ out:
ipq_put(qp);
}
-/* Creation primitives. */
-
-static struct ipq *ip_frag_intern(struct ipq *qp_in)
+/* Find the correct entry in the "incomplete datagrams" queue for
+ * this IP datagram, and create new one, if nothing is found.
+ */
+static inline struct ipq *ip_find(struct iphdr *iph, u32 user)
{
- struct ipq *qp;
-#ifdef CONFIG_SMP
- struct hlist_node *n;
-#endif
+ struct inet_frag_queue *q;
+ struct ip4_create_arg arg;
unsigned int hash;
- write_lock(&ip4_frags.lock);
- hash = ipqhashfn(qp_in->id, qp_in->saddr, qp_in->daddr,
- qp_in->protocol);
-#ifdef CONFIG_SMP
- /* With SMP race we have to recheck hash table, because
- * such entry could be created on other cpu, while we
- * promoted read lock to write lock.
- */
- hlist_for_each_entry(qp, n, &ip4_frags.hash[hash], q.list) {
- if (qp->id == qp_in->id &&
- qp->saddr == qp_in->saddr &&
- qp->daddr == qp_in->daddr &&
- qp->protocol == qp_in->protocol &&
- qp->user == qp_in->user) {
- atomic_inc(&qp->q.refcnt);
- write_unlock(&ip4_frags.lock);
- qp_in->q.last_in |= COMPLETE;
- ipq_put(qp_in);
- return qp;
- }
- }
-#endif
- qp = qp_in;
-
- if (!mod_timer(&qp->q.timer, jiffies + ip4_frags_ctl.timeout))
- atomic_inc(&qp->q.refcnt);
+ arg.iph = iph;
+ arg.user = user;
+ hash = ipqhashfn(iph->id, iph->saddr, iph->daddr, iph->protocol);
- atomic_inc(&qp->q.refcnt);
- hlist_add_head(&qp->q.list, &ip4_frags.hash[hash]);
- INIT_LIST_HEAD(&qp->q.lru_list);
- list_add_tail(&qp->q.lru_list, &ip4_frags.lru_list);
- ip4_frags.nqueues++;
- write_unlock(&ip4_frags.lock);
- return qp;
-}
-
-/* Add an entry to the 'ipq' queue for a newly received IP datagram. */
-static struct ipq *ip_frag_create(struct iphdr *iph, u32 user)
-{
- struct ipq *qp;
-
- if ((qp = frag_alloc_queue()) == NULL)
+ q = inet_frag_find(&ip4_frags, &arg, hash);
+ if (q == NULL)
goto out_nomem;
- qp->protocol = iph->protocol;
- qp->id = iph->id;
- qp->saddr = iph->saddr;
- qp->daddr = iph->daddr;
- qp->user = user;
- qp->peer = sysctl_ipfrag_max_dist ? inet_getpeer(iph->saddr, 1) : NULL;
-
- /* Initialize a timer for this entry. */
- init_timer(&qp->q.timer);
- qp->q.timer.data = (unsigned long) qp; /* pointer to queue */
- qp->q.timer.function = ip_expire; /* expire function */
- spin_lock_init(&qp->q.lock);
- atomic_set(&qp->q.refcnt, 1);
-
- return ip_frag_intern(qp);
+ return container_of(q, struct ipq, q);
out_nomem:
LIMIT_NETDEBUG(KERN_ERR "ip_frag_create: no memory left !\n");
return NULL;
}
-/* Find the correct entry in the "incomplete datagrams" queue for
- * this IP datagram, and create new one, if nothing is found.
- */
-static inline struct ipq *ip_find(struct iphdr *iph, u32 user)
-{
- __be16 id = iph->id;
- __be32 saddr = iph->saddr;
- __be32 daddr = iph->daddr;
- __u8 protocol = iph->protocol;
- unsigned int hash;
- struct ipq *qp;
- struct hlist_node *n;
-
- read_lock(&ip4_frags.lock);
- hash = ipqhashfn(id, saddr, daddr, protocol);
- hlist_for_each_entry(qp, n, &ip4_frags.hash[hash], q.list) {
- if (qp->id == id &&
- qp->saddr == saddr &&
- qp->daddr == daddr &&
- qp->protocol == protocol &&
- qp->user == user) {
- atomic_inc(&qp->q.refcnt);
- read_unlock(&ip4_frags.lock);
- return qp;
- }
- }
- read_unlock(&ip4_frags.lock);
-
- return ip_frag_create(iph, user);
-}
-
/* Is the fragment too far ahead to be part of ipq? */
static inline int ip_frag_too_far(struct ipq *qp)
{
@@ -671,9 +612,12 @@ void __init ipfrag_init(void)
{
ip4_frags.ctl = &ip4_frags_ctl;
ip4_frags.hashfn = ip4_hashfn;
+ ip4_frags.constructor = ip4_frag_init;
ip4_frags.destructor = ip4_frag_free;
ip4_frags.skb_free = NULL;
ip4_frags.qsize = sizeof(struct ipq);
+ ip4_frags.match = ip4_frag_match;
+ ip4_frags.frag_expire = ip_expire;
inet_frags_init(&ip4_frags);
}
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index bc929381fa46..1b1caf3aa1c1 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -747,6 +747,7 @@ static void cleanup_ipv6_mibs(void)
{
snmp_mib_free((void **)ipv6_statistics);
snmp_mib_free((void **)icmpv6_statistics);
+ snmp_mib_free((void **)icmpv6msg_statistics);
snmp_mib_free((void **)udp_stats_in6);
snmp_mib_free((void **)udplite_stats_in6);
}
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 726fafd41961..e170c67c47a5 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -130,22 +130,6 @@ static inline void frag_kfree_skb(struct sk_buff *skb, unsigned int *work)
kfree_skb(skb);
}
-static void nf_frag_free(struct inet_frag_queue *q)
-{
- kfree(container_of(q, struct nf_ct_frag6_queue, q));
-}
-
-static inline struct nf_ct_frag6_queue *frag_alloc_queue(void)
-{
- struct nf_ct_frag6_queue *fq;
-
- fq = kzalloc(sizeof(struct nf_ct_frag6_queue), GFP_ATOMIC);
- if (fq == NULL)
- return NULL;
- atomic_add(sizeof(struct nf_ct_frag6_queue), &nf_frags.mem);
- return fq;
-}
-
/* Destruction primitives. */
static __inline__ void fq_put(struct nf_ct_frag6_queue *fq)
@@ -168,7 +152,10 @@ static void nf_ct_frag6_evictor(void)
static void nf_ct_frag6_expire(unsigned long data)
{
- struct nf_ct_frag6_queue *fq = (struct nf_ct_frag6_queue *) data;
+ struct nf_ct_frag6_queue *fq;
+
+ fq = container_of((struct inet_frag_queue *)data,
+ struct nf_ct_frag6_queue, q);
spin_lock(&fq->q.lock);
@@ -184,89 +171,29 @@ out:
/* Creation primitives. */
-static struct nf_ct_frag6_queue *nf_ct_frag6_intern(unsigned int hash,
- struct nf_ct_frag6_queue *fq_in)
+static __inline__ struct nf_ct_frag6_queue *
+fq_find(__be32 id, struct in6_addr *src, struct in6_addr *dst)
{
- struct nf_ct_frag6_queue *fq;
-#ifdef CONFIG_SMP
- struct hlist_node *n;
-#endif
-
- write_lock(&nf_frags.lock);
-#ifdef CONFIG_SMP
- hlist_for_each_entry(fq, n, &nf_frags.hash[hash], q.list) {
- if (fq->id == fq_in->id &&
- ipv6_addr_equal(&fq_in->saddr, &fq->saddr) &&
- ipv6_addr_equal(&fq_in->daddr, &fq->daddr)) {
- atomic_inc(&fq->q.refcnt);
- write_unlock(&nf_frags.lock);
- fq_in->q.last_in |= COMPLETE;
- fq_put(fq_in);
- return fq;
- }
- }
-#endif
- fq = fq_in;
-
- if (!mod_timer(&fq->q.timer, jiffies + nf_frags_ctl.timeout))
- atomic_inc(&fq->q.refcnt);
-
- atomic_inc(&fq->q.refcnt);
- hlist_add_head(&fq->q.list, &nf_frags.hash[hash]);
- INIT_LIST_HEAD(&fq->q.lru_list);
- list_add_tail(&fq->q.lru_list, &nf_frags.lru_list);
- nf_frags.nqueues++;
- write_unlock(&nf_frags.lock);
- return fq;
-}
+ struct inet_frag_queue *q;
+ struct ip6_create_arg arg;
+ unsigned int hash;
+ arg.id = id;
+ arg.src = src;
+ arg.dst = dst;
+ hash = ip6qhashfn(id, src, dst);
-static struct nf_ct_frag6_queue *
-nf_ct_frag6_create(unsigned int hash, __be32 id, struct in6_addr *src, struct in6_addr *dst)
-{
- struct nf_ct_frag6_queue *fq;
-
- if ((fq = frag_alloc_queue()) == NULL) {
- pr_debug("Can't alloc new queue\n");
+ q = inet_frag_find(&nf_frags, &arg, hash);
+ if (q == NULL)
goto oom;
- }
-
- fq->id = id;
- ipv6_addr_copy(&fq->saddr, src);
- ipv6_addr_copy(&fq->daddr, dst);
-
- setup_timer(&fq->q.timer, nf_ct_frag6_expire, (unsigned long)fq);
- spin_lock_init(&fq->q.lock);
- atomic_set(&fq->q.refcnt, 1);
- return nf_ct_frag6_intern(hash, fq);
+ return container_of(q, struct nf_ct_frag6_queue, q);
oom:
+ pr_debug("Can't alloc new queue\n");
return NULL;
}
-static __inline__ struct nf_ct_frag6_queue *
-fq_find(__be32 id, struct in6_addr *src, struct in6_addr *dst)
-{
- struct nf_ct_frag6_queue *fq;
- struct hlist_node *n;
- unsigned int hash = ip6qhashfn(id, src, dst);
-
- read_lock(&nf_frags.lock);
- hlist_for_each_entry(fq, n, &nf_frags.hash[hash], q.list) {
- if (fq->id == id &&
- ipv6_addr_equal(src, &fq->saddr) &&
- ipv6_addr_equal(dst, &fq->daddr)) {
- atomic_inc(&fq->q.refcnt);
- read_unlock(&nf_frags.lock);
- return fq;
- }
- }
- read_unlock(&nf_frags.lock);
-
- return nf_ct_frag6_create(hash, id, src, dst);
-}
-
static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
struct frag_hdr *fhdr, int nhoff)
@@ -749,9 +676,12 @@ int nf_ct_frag6_init(void)
{
nf_frags.ctl = &nf_frags_ctl;
nf_frags.hashfn = nf_hashfn;
- nf_frags.destructor = nf_frag_free;
+ nf_frags.constructor = ip6_frag_init;
+ nf_frags.destructor = NULL;
nf_frags.skb_free = nf_skb_free;
nf_frags.qsize = sizeof(struct nf_ct_frag6_queue);
+ nf_frags.match = ip6_frag_match;
+ nf_frags.frag_expire = nf_ct_frag6_expire;
inet_frags_init(&nf_frags);
return 0;
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 6ad19cfc2025..76c88a93b9b5 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -143,6 +143,18 @@ static unsigned int ip6_hashfn(struct inet_frag_queue *q)
return ip6qhashfn(fq->id, &fq->saddr, &fq->daddr);
}
+int ip6_frag_match(struct inet_frag_queue *q, void *a)
+{
+ struct frag_queue *fq;
+ struct ip6_create_arg *arg = a;
+
+ fq = container_of(q, struct frag_queue, q);
+ return (fq->id == arg->id &&
+ ipv6_addr_equal(&fq->saddr, arg->src) &&
+ ipv6_addr_equal(&fq->daddr, arg->dst));
+}
+EXPORT_SYMBOL(ip6_frag_match);
+
/* Memory Tracking Functions. */
static inline void frag_kfree_skb(struct sk_buff *skb, int *work)
{
@@ -152,20 +164,16 @@ static inline void frag_kfree_skb(struct sk_buff *skb, int *work)
kfree_skb(skb);
}
-static void ip6_frag_free(struct inet_frag_queue *fq)
+void ip6_frag_init(struct inet_frag_queue *q, void *a)
{
- kfree(container_of(fq, struct frag_queue, q));
-}
-
-static inline struct frag_queue *frag_alloc_queue(void)
-{
- struct frag_queue *fq = kzalloc(sizeof(struct frag_queue), GFP_ATOMIC);
+ struct frag_queue *fq = container_of(q, struct frag_queue, q);
+ struct ip6_create_arg *arg = a;
- if(!fq)
- return NULL;
- atomic_add(sizeof(struct frag_queue), &ip6_frags.mem);
- return fq;
+ fq->id = arg->id;
+ ipv6_addr_copy(&fq->saddr, arg->src);
+ ipv6_addr_copy(&fq->daddr, arg->dst);
}
+EXPORT_SYMBOL(ip6_frag_init);
/* Destruction primitives. */
@@ -193,9 +201,11 @@ static void ip6_evictor(struct inet6_dev *idev)
static void ip6_frag_expire(unsigned long data)
{
- struct frag_queue *fq = (struct frag_queue *) data;
+ struct frag_queue *fq;
struct net_device *dev = NULL;
+ fq = container_of((struct inet_frag_queue *)data, struct frag_queue, q);
+
spin_lock(&fq->q.lock);
if (fq->q.last_in & COMPLETE)
@@ -230,98 +240,30 @@ out:
fq_put(fq);
}
-/* Creation primitives. */
-
-
-static struct frag_queue *ip6_frag_intern(struct frag_queue *fq_in)
+static __inline__ struct frag_queue *
+fq_find(__be32 id, struct in6_addr *src, struct in6_addr *dst,
+ struct inet6_dev *idev)
{
- struct frag_queue *fq;
+ struct inet_frag_queue *q;
+ struct ip6_create_arg arg;
unsigned int hash;
-#ifdef CONFIG_SMP
- struct hlist_node *n;
-#endif
- write_lock(&ip6_frags.lock);
- hash = ip6qhashfn(fq_in->id, &fq_in->saddr, &fq_in->daddr);
-#ifdef CONFIG_SMP
- hlist_for_each_entry(fq, n, &ip6_frags.hash[hash], q.list) {
- if (fq->id == fq_in->id &&
- ipv6_addr_equal(&fq_in->saddr, &fq->saddr) &&
- ipv6_addr_equal(&fq_in->daddr, &fq->daddr)) {
- atomic_inc(&fq->q.refcnt);
- write_unlock(&ip6_frags.lock);
- fq_in->q.last_in |= COMPLETE;
- fq_put(fq_in);
- return fq;
- }
- }
-#endif
- fq = fq_in;
-
- if (!mod_timer(&fq->q.timer, jiffies + ip6_frags_ctl.timeout))
- atomic_inc(&fq->q.refcnt);
-
- atomic_inc(&fq->q.refcnt);
- hlist_add_head(&fq->q.list, &ip6_frags.hash[hash]);
- INIT_LIST_HEAD(&fq->q.lru_list);
- list_add_tail(&fq->q.lru_list, &ip6_frags.lru_list);
- ip6_frags.nqueues++;
- write_unlock(&ip6_frags.lock);
- return fq;
-}
-
-
-static struct frag_queue *
-ip6_frag_create(__be32 id, struct in6_addr *src, struct in6_addr *dst,
- struct inet6_dev *idev)
-{
- struct frag_queue *fq;
+ arg.id = id;
+ arg.src = src;
+ arg.dst = dst;
+ hash = ip6qhashfn(id, src, dst);
- if ((fq = frag_alloc_queue()) == NULL)
+ q = inet_frag_find(&ip6_frags, &arg, hash);
+ if (q == NULL)
goto oom;
- fq->id = id;
- ipv6_addr_copy(&fq->saddr, src);
- ipv6_addr_copy(&fq->daddr, dst);
-
- init_timer(&fq->q.timer);
- fq->q.timer.function = ip6_frag_expire;
- fq->q.timer.data = (long) fq;
- spin_lock_init(&fq->q.lock);
- atomic_set(&fq->q.refcnt, 1);
-
- return ip6_frag_intern(fq);
+ return container_of(q, struct frag_queue, q);
oom:
IP6_INC_STATS_BH(idev, IPSTATS_MIB_REASMFAILS);
return NULL;
}
-static __inline__ struct frag_queue *
-fq_find(__be32 id, struct in6_addr *src, struct in6_addr *dst,
- struct inet6_dev *idev)
-{
- struct frag_queue *fq;
- struct hlist_node *n;
- unsigned int hash;
-
- read_lock(&ip6_frags.lock);
- hash = ip6qhashfn(id, src, dst);
- hlist_for_each_entry(fq, n, &ip6_frags.hash[hash], q.list) {
- if (fq->id == id &&
- ipv6_addr_equal(src, &fq->saddr) &&
- ipv6_addr_equal(dst, &fq->daddr)) {
- atomic_inc(&fq->q.refcnt);
- read_unlock(&ip6_frags.lock);
- return fq;
- }
- }
- read_unlock(&ip6_frags.lock);
-
- return ip6_frag_create(id, src, dst, idev);
-}
-
-
static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
struct frag_hdr *fhdr, int nhoff)
{
@@ -697,8 +639,11 @@ void __init ipv6_frag_init(void)
ip6_frags.ctl = &ip6_frags_ctl;
ip6_frags.hashfn = ip6_hashfn;
- ip6_frags.destructor = ip6_frag_free;
+ ip6_frags.constructor = ip6_frag_init;
+ ip6_frags.destructor = NULL;
ip6_frags.skb_free = NULL;
ip6_frags.qsize = sizeof(struct frag_queue);
+ ip6_frags.match = ip6_frag_match;
+ ip6_frags.frag_expire = ip6_frag_expire;
inet_frags_init(&ip6_frags);
}
diff --git a/net/irda/ircomm/ircomm_tty_attach.c b/net/irda/ircomm/ircomm_tty_attach.c
index 824309dabfe9..b5a13882c927 100644
--- a/net/irda/ircomm/ircomm_tty_attach.c
+++ b/net/irda/ircomm/ircomm_tty_attach.c
@@ -381,18 +381,9 @@ static void ircomm_tty_discovery_indication(discinfo_t *discovery,
info.daddr = discovery->daddr;
info.saddr = discovery->saddr;
- /* FIXME. We have a locking problem on the hashbin here.
- * We probably need to use hashbin_find_next(), but we first
- * need to ensure that "line" is unique. - Jean II */
- self = (struct ircomm_tty_cb *) hashbin_get_first(ircomm_tty);
- while (self != NULL) {
- IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
-
- ircomm_tty_do_event(self, IRCOMM_TTY_DISCOVERY_INDICATION,
- NULL, &info);
-
- self = (struct ircomm_tty_cb *) hashbin_get_next(ircomm_tty);
- }
+ self = (struct ircomm_tty_cb *) priv;
+ ircomm_tty_do_event(self, IRCOMM_TTY_DISCOVERY_INDICATION,
+ NULL, &info);
}
/*
diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
index 0803f305ed08..c680017f5c8e 100644
--- a/net/rxrpc/af_rxrpc.c
+++ b/net/rxrpc/af_rxrpc.c
@@ -14,6 +14,7 @@
#include <linux/skbuff.h>
#include <linux/poll.h>
#include <linux/proc_fs.h>
+#include <linux/key-type.h>
#include <net/net_namespace.h>
#include <net/sock.h>
#include <net/af_rxrpc.h>
diff --git a/net/rxrpc/ar-key.c b/net/rxrpc/ar-key.c
index 7e049ff6ae60..9a8ff684da79 100644
--- a/net/rxrpc/ar-key.c
+++ b/net/rxrpc/ar-key.c
@@ -15,7 +15,7 @@
#include <linux/module.h>
#include <linux/net.h>
#include <linux/skbuff.h>
-#include <linux/key.h>
+#include <linux/key-type.h>
#include <linux/crypto.h>
#include <net/sock.h>
#include <net/af_rxrpc.h>
@@ -40,7 +40,6 @@ struct key_type key_type_rxrpc = {
.destroy = rxrpc_destroy,
.describe = rxrpc_describe,
};
-
EXPORT_SYMBOL(key_type_rxrpc);
/*
@@ -330,5 +329,32 @@ error:
_leave(" = -ENOMEM [ins %d]", ret);
return -ENOMEM;
}
-
EXPORT_SYMBOL(rxrpc_get_server_data_key);
+
+/**
+ * rxrpc_get_null_key - Generate a null RxRPC key
+ * @keyname: The name to give the key.
+ *
+ * Generate a null RxRPC key that can be used to indicate anonymous security is
+ * required for a particular domain.
+ */
+struct key *rxrpc_get_null_key(const char *keyname)
+{
+ struct key *key;
+ int ret;
+
+ key = key_alloc(&key_type_rxrpc, keyname, 0, 0, current,
+ KEY_POS_SEARCH, KEY_ALLOC_NOT_IN_QUOTA);
+ if (IS_ERR(key))
+ return key;
+
+ ret = key_instantiate_and_link(key, NULL, 0, NULL, NULL);
+ if (ret < 0) {
+ key_revoke(key);
+ key_put(key);
+ return ERR_PTR(ret);
+ }
+
+ return key;
+}
+EXPORT_SYMBOL(rxrpc_get_null_key);
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 81b26c5ffd4b..f5cd96f5fe74 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -1228,7 +1228,6 @@ SCTP_STATIC __init int sctp_init(void)
if (status)
goto err_v6_add_protocol;
- __unsafe(THIS_MODULE);
status = 0;
out:
return status;
diff --git a/net/socket.c b/net/socket.c
index 379b3a390755..540013ea8620 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -258,7 +258,7 @@ static void sock_destroy_inode(struct inode *inode)
container_of(inode, struct socket_alloc, vfs_inode));
}
-static void init_once(void *foo, struct kmem_cache *cachep, unsigned long flags)
+static void init_once(struct kmem_cache *cachep, void *foo)
{
struct socket_alloc *ei = (struct socket_alloc *)foo;
@@ -364,26 +364,26 @@ static int sock_alloc_fd(struct file **filep)
static int sock_attach_fd(struct socket *sock, struct file *file)
{
+ struct dentry *dentry;
struct qstr name = { .name = "" };
- file->f_path.dentry = d_alloc(sock_mnt->mnt_sb->s_root, &name);
- if (unlikely(!file->f_path.dentry))
+ dentry = d_alloc(sock_mnt->mnt_sb->s_root, &name);
+ if (unlikely(!dentry))
return -ENOMEM;
- file->f_path.dentry->d_op = &sockfs_dentry_operations;
+ dentry->d_op = &sockfs_dentry_operations;
/*
* We dont want to push this dentry into global dentry hash table.
* We pretend dentry is already hashed, by unsetting DCACHE_UNHASHED
* This permits a working /proc/$pid/fd/XXX on sockets
*/
- file->f_path.dentry->d_flags &= ~DCACHE_UNHASHED;
- d_instantiate(file->f_path.dentry, SOCK_INODE(sock));
- file->f_path.mnt = mntget(sock_mnt);
- file->f_mapping = file->f_path.dentry->d_inode->i_mapping;
+ dentry->d_flags &= ~DCACHE_UNHASHED;
+ d_instantiate(dentry, SOCK_INODE(sock));
sock->file = file;
- file->f_op = SOCK_INODE(sock)->i_fop = &socket_file_ops;
- file->f_mode = FMODE_READ | FMODE_WRITE;
+ init_file(file, sock_mnt, dentry, FMODE_READ | FMODE_WRITE,
+ &socket_file_ops);
+ SOCK_INODE(sock)->i_fop = &socket_file_ops;
file->f_flags = O_RDWR;
file->f_pos = 0;
file->private_data = sock;
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index c8433e8865aa..18f0a8dcc095 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -842,7 +842,7 @@ static struct file_system_type rpc_pipe_fs_type = {
};
static void
-init_once(void * foo, struct kmem_cache * cachep, unsigned long flags)
+init_once(struct kmem_cache * cachep, void *foo)
{
struct rpc_inode *rpci = (struct rpc_inode *) foo;
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 9ec8ca4f6028..44b0fb942e8d 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -1263,7 +1263,8 @@ rpcrdma_register_internal(struct rpcrdma_ia *ia, void *va, int len,
dprintk("RPC: %s: phys convert: 0x%llx "
"registered 0x%llx length %d\n",
- __func__, ipb.addr, iov->addr, len);
+ __func__, (unsigned long long)ipb.addr,
+ (unsigned long long)iov->addr, len);
if (IS_ERR(mr)) {
*mrp = NULL;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-13 18:43:48 +0100