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-rw-r--r--fs/afs/Makefile2
-rw-r--r--fs/afs/callback.c2
-rw-r--r--fs/afs/cmservice.c1
-rw-r--r--fs/afs/dir.c3
-rw-r--r--fs/afs/fsclient.c3
-rw-r--r--fs/afs/internal.h7
-rw-r--r--fs/afs/main.c2
-rw-r--r--fs/afs/mntpt.c11
-rw-r--r--fs/afs/netdevices.c68
-rw-r--r--fs/afs/super.c103
-rw-r--r--fs/afs/use-rtnetlink.c473
-rw-r--r--fs/afs/vlocation.c2
12 files changed, 126 insertions, 551 deletions
diff --git a/fs/afs/Makefile b/fs/afs/Makefile
index 01545eb1d87..cf83e5d6351 100644
--- a/fs/afs/Makefile
+++ b/fs/afs/Makefile
@@ -18,7 +18,7 @@ kafs-objs := \
security.o \
server.o \
super.o \
- use-rtnetlink.o \
+ netdevices.o \
vlclient.o \
vlocation.o \
vnode.o \
diff --git a/fs/afs/callback.c b/fs/afs/callback.c
index 639399f0ab6..9bdbf36a9aa 100644
--- a/fs/afs/callback.c
+++ b/fs/afs/callback.c
@@ -468,7 +468,7 @@ int __init afs_callback_update_init(void)
/*
* shut down the callback update process
*/
-void __exit afs_callback_update_kill(void)
+void afs_callback_update_kill(void)
{
destroy_workqueue(afs_callback_update_worker);
}
diff --git a/fs/afs/cmservice.c b/fs/afs/cmservice.c
index 6685f4cbccb..d5b2ad6575b 100644
--- a/fs/afs/cmservice.c
+++ b/fs/afs/cmservice.c
@@ -443,6 +443,7 @@ static void SRXAFSCB_GetCapabilities(struct work_struct *work)
reply.ia.netmask[loop] = ifs[loop].netmask.s_addr;
reply.ia.mtu[loop] = htonl(ifs[loop].mtu);
}
+ kfree(ifs);
}
reply.cap.capcount = htonl(1);
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index dac5b990c0c..0c1e902f17a 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -194,10 +194,7 @@ static struct page *afs_dir_get_page(struct inode *dir, unsigned long index,
page = read_mapping_page(dir->i_mapping, index, &file);
if (!IS_ERR(page)) {
- wait_on_page_locked(page);
kmap(page);
- if (!PageUptodate(page))
- goto fail;
if (!PageChecked(page))
afs_dir_check_page(dir, page);
if (PageError(page))
diff --git a/fs/afs/fsclient.c b/fs/afs/fsclient.c
index 2393d2a08d7..e54e6c2ad34 100644
--- a/fs/afs/fsclient.c
+++ b/fs/afs/fsclient.c
@@ -266,7 +266,8 @@ static int afs_deliver_fs_fetch_data(struct afs_call *call,
call->unmarshall++;
if (call->count < PAGE_SIZE) {
- buffer = kmap_atomic(call->reply3, KM_USER0);
+ page = call->reply3;
+ buffer = kmap_atomic(page, KM_USER0);
memset(buffer + PAGE_SIZE - call->count, 0,
call->count);
kunmap_atomic(buffer, KM_USER0);
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index 34665f7d7a1..d90c158cd93 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -349,7 +349,6 @@ struct afs_permits {
* record of one of a system's set of network interfaces
*/
struct afs_interface {
- unsigned index; /* interface index */
struct in_addr address; /* IPv4 address bound to interface */
struct in_addr netmask; /* netmask applied to address */
unsigned mtu; /* MTU of interface */
@@ -392,7 +391,7 @@ extern void afs_give_up_callback(struct afs_vnode *);
extern void afs_dispatch_give_up_callbacks(struct work_struct *);
extern void afs_flush_callback_breaks(struct afs_server *);
extern int __init afs_callback_update_init(void);
-extern void __exit afs_callback_update_kill(void);
+extern void afs_callback_update_kill(void);
/*
* cell.c
@@ -564,7 +563,7 @@ extern void afs_fs_exit(void);
* use-rtnetlink.c
*/
extern int afs_get_ipv4_interfaces(struct afs_interface *, size_t, bool);
-extern int afs_get_MAC_address(u8 [6]);
+extern int afs_get_MAC_address(u8 *, size_t);
/*
* vlclient.c
@@ -591,7 +590,7 @@ extern struct afs_vlocation *afs_vlocation_lookup(struct afs_cell *,
struct key *,
const char *, size_t);
extern void afs_put_vlocation(struct afs_vlocation *);
-extern void __exit afs_vlocation_purge(void);
+extern void afs_vlocation_purge(void);
/*
* vnode.c
diff --git a/fs/afs/main.c b/fs/afs/main.c
index 40c2704e755..80ec6fd19a7 100644
--- a/fs/afs/main.c
+++ b/fs/afs/main.c
@@ -54,7 +54,7 @@ static int __init afs_get_client_UUID(void)
/* read the MAC address of one of the external interfaces and construct
* a UUID from it */
- ret = afs_get_MAC_address(afs_uuid.node);
+ ret = afs_get_MAC_address(afs_uuid.node, sizeof(afs_uuid.node));
if (ret < 0)
return ret;
diff --git a/fs/afs/mntpt.c b/fs/afs/mntpt.c
index b905ae37f91..034fcfd4e33 100644
--- a/fs/afs/mntpt.c
+++ b/fs/afs/mntpt.c
@@ -68,13 +68,11 @@ int afs_mntpt_check_symlink(struct afs_vnode *vnode, struct key *key)
}
ret = -EIO;
- wait_on_page_locked(page);
- buf = kmap(page);
- if (!PageUptodate(page))
- goto out_free;
if (PageError(page))
goto out_free;
+ buf = kmap(page);
+
/* examine the symlink's contents */
size = vnode->status.size;
_debug("symlink to %*.*s", (int) size, (int) size, buf);
@@ -91,8 +89,8 @@ int afs_mntpt_check_symlink(struct afs_vnode *vnode, struct key *key)
ret = 0;
-out_free:
kunmap(page);
+out_free:
page_cache_release(page);
out:
_leave(" = %d", ret);
@@ -171,8 +169,7 @@ static struct vfsmount *afs_mntpt_do_automount(struct dentry *mntpt)
}
ret = -EIO;
- wait_on_page_locked(page);
- if (!PageUptodate(page) || PageError(page))
+ if (PageError(page))
goto error;
buf = kmap(page);
diff --git a/fs/afs/netdevices.c b/fs/afs/netdevices.c
new file mode 100644
index 00000000000..fc27d4b52e5
--- /dev/null
+++ b/fs/afs/netdevices.c
@@ -0,0 +1,68 @@
+/* AFS network device helpers
+ *
+ * Copyright (c) 2007 Patrick McHardy <kaber@trash.net>
+ */
+
+#include <linux/string.h>
+#include <linux/rtnetlink.h>
+#include <linux/inetdevice.h>
+#include <linux/netdevice.h>
+#include <linux/if_arp.h>
+#include "internal.h"
+
+/*
+ * get a MAC address from a random ethernet interface that has a real one
+ * - the buffer will normally be 6 bytes in size
+ */
+int afs_get_MAC_address(u8 *mac, size_t maclen)
+{
+ struct net_device *dev;
+ int ret = -ENODEV;
+
+ if (maclen != ETH_ALEN)
+ BUG();
+
+ rtnl_lock();
+ dev = __dev_getfirstbyhwtype(ARPHRD_ETHER);
+ if (dev) {
+ memcpy(mac, dev->dev_addr, maclen);
+ ret = 0;
+ }
+ rtnl_unlock();
+ return ret;
+}
+
+/*
+ * get a list of this system's interface IPv4 addresses, netmasks and MTUs
+ * - maxbufs must be at least 1
+ * - returns the number of interface records in the buffer
+ */
+int afs_get_ipv4_interfaces(struct afs_interface *bufs, size_t maxbufs,
+ bool wantloopback)
+{
+ struct net_device *dev;
+ struct in_device *idev;
+ int n = 0;
+
+ ASSERT(maxbufs > 0);
+
+ rtnl_lock();
+ for_each_netdev(dev) {
+ if (dev->type == ARPHRD_LOOPBACK && !wantloopback)
+ continue;
+ idev = __in_dev_get_rtnl(dev);
+ if (!idev)
+ continue;
+ for_primary_ifa(idev) {
+ bufs[n].address.s_addr = ifa->ifa_address;
+ bufs[n].netmask.s_addr = ifa->ifa_mask;
+ bufs[n].mtu = dev->mtu;
+ n++;
+ if (n >= maxbufs)
+ goto out;
+ } endfor_ifa(idev);
+ }
+out:
+ rtnl_unlock();
+ return n;
+}
diff --git a/fs/afs/super.c b/fs/afs/super.c
index cebd03c91f5..7030d76155f 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -20,6 +20,7 @@
#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/pagemap.h>
+#include <linux/parser.h>
#include "internal.h"
#define AFS_FS_MAGIC 0x6B414653 /* 'kAFS' */
@@ -42,7 +43,7 @@ struct file_system_type afs_fs_type = {
.name = "afs",
.get_sb = afs_get_sb,
.kill_sb = kill_anon_super,
- .fs_flags = FS_BINARY_MOUNTDATA,
+ .fs_flags = 0,
};
static const struct super_operations afs_super_ops = {
@@ -58,6 +59,20 @@ static const struct super_operations afs_super_ops = {
static struct kmem_cache *afs_inode_cachep;
static atomic_t afs_count_active_inodes;
+enum {
+ afs_no_opt,
+ afs_opt_cell,
+ afs_opt_rwpath,
+ afs_opt_vol,
+};
+
+static const match_table_t afs_options_list = {
+ { afs_opt_cell, "cell=%s" },
+ { afs_opt_rwpath, "rwpath" },
+ { afs_opt_vol, "vol=%s" },
+ { afs_no_opt, NULL },
+};
+
/*
* initialise the filesystem
*/
@@ -115,31 +130,6 @@ void __exit afs_fs_exit(void)
}
/*
- * check that an argument has a value
- */
-static int want_arg(char **_value, const char *option)
-{
- if (!_value || !*_value || !**_value) {
- printk(KERN_NOTICE "kAFS: %s: argument missing\n", option);
- return 0;
- }
- return 1;
-}
-
-/*
- * check that there's no subsequent value
- */
-static int want_no_value(char *const *_value, const char *option)
-{
- if (*_value && **_value) {
- printk(KERN_NOTICE "kAFS: %s: Invalid argument: %s\n",
- option, *_value);
- return 0;
- }
- return 1;
-}
-
-/*
* parse the mount options
* - this function has been shamelessly adapted from the ext3 fs which
* shamelessly adapted it from the msdos fs
@@ -148,48 +138,46 @@ static int afs_parse_options(struct afs_mount_params *params,
char *options, const char **devname)
{
struct afs_cell *cell;
- char *key, *value;
- int ret;
+ substring_t args[MAX_OPT_ARGS];
+ char *p;
+ int token;
_enter("%s", options);
options[PAGE_SIZE - 1] = 0;
- ret = 0;
- while ((key = strsep(&options, ","))) {
- value = strchr(key, '=');
- if (value)
- *value++ = 0;
-
- _debug("kAFS: KEY: %s, VAL:%s", key, value ?: "-");
+ while ((p = strsep(&options, ","))) {
+ if (!*p)
+ continue;
- if (strcmp(key, "rwpath") == 0) {
- if (!want_no_value(&value, "rwpath"))
- return -EINVAL;
- params->rwpath = 1;
- } else if (strcmp(key, "vol") == 0) {
- if (!want_arg(&value, "vol"))
- return -EINVAL;
- *devname = value;
- } else if (strcmp(key, "cell") == 0) {
- if (!want_arg(&value, "cell"))
- return -EINVAL;
- cell = afs_cell_lookup(value, strlen(value));
+ token = match_token(p, afs_options_list, args);
+ switch (token) {
+ case afs_opt_cell:
+ cell = afs_cell_lookup(args[0].from,
+ args[0].to - args[0].from);
if (IS_ERR(cell))
return PTR_ERR(cell);
afs_put_cell(params->cell);
params->cell = cell;
- } else {
- printk("kAFS: Unknown mount option: '%s'\n", key);
- ret = -EINVAL;
- goto error;
+ break;
+
+ case afs_opt_rwpath:
+ params->rwpath = 1;
+ break;
+
+ case afs_opt_vol:
+ *devname = args[0].from;
+ break;
+
+ default:
+ printk(KERN_ERR "kAFS:"
+ " Unknown or invalid mount option: '%s'\n", p);
+ return -EINVAL;
}
}
- ret = 0;
-error:
- _leave(" = %d", ret);
- return ret;
+ _leave(" = 0");
+ return 0;
}
/*
@@ -361,7 +349,6 @@ error:
/*
* get an AFS superblock
- * - TODO: don't use get_sb_nodev(), but rather call sget() directly
*/
static int afs_get_sb(struct file_system_type *fs_type,
int flags,
@@ -386,7 +373,6 @@ static int afs_get_sb(struct file_system_type *fs_type,
goto error;
}
-
ret = afs_parse_device_name(&params, dev_name);
if (ret < 0)
goto error;
@@ -467,8 +453,7 @@ static void afs_i_init_once(void *_vnode, struct kmem_cache *cachep,
{
struct afs_vnode *vnode = _vnode;
- if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
- SLAB_CTOR_CONSTRUCTOR) {
+ if (flags & SLAB_CTOR_CONSTRUCTOR) {
memset(vnode, 0, sizeof(*vnode));
inode_init_once(&vnode->vfs_inode);
init_waitqueue_head(&vnode->update_waitq);
diff --git a/fs/afs/use-rtnetlink.c b/fs/afs/use-rtnetlink.c
deleted file mode 100644
index f8991c700e0..00000000000
--- a/fs/afs/use-rtnetlink.c
+++ /dev/null
@@ -1,473 +0,0 @@
-/* RTNETLINK client
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/netlink.h>
-#include <linux/rtnetlink.h>
-#include <linux/if_addr.h>
-#include <linux/if_arp.h>
-#include <linux/inetdevice.h>
-#include <net/netlink.h>
-#include "internal.h"
-
-struct afs_rtm_desc {
- struct socket *nlsock;
- struct afs_interface *bufs;
- u8 *mac;
- size_t nbufs;
- size_t maxbufs;
- void *data;
- ssize_t datalen;
- size_t datamax;
- int msg_seq;
- unsigned mac_index;
- bool wantloopback;
- int (*parse)(struct afs_rtm_desc *, struct nlmsghdr *);
-};
-
-/*
- * parse an RTM_GETADDR response
- */
-static int afs_rtm_getaddr_parse(struct afs_rtm_desc *desc,
- struct nlmsghdr *nlhdr)
-{
- struct afs_interface *this;
- struct ifaddrmsg *ifa;
- struct rtattr *rtattr;
- const char *name;
- size_t len;
-
- ifa = (struct ifaddrmsg *) NLMSG_DATA(nlhdr);
-
- _enter("{ix=%d,af=%d}", ifa->ifa_index, ifa->ifa_family);
-
- if (ifa->ifa_family != AF_INET) {
- _leave(" = 0 [family %d]", ifa->ifa_family);
- return 0;
- }
- if (desc->nbufs >= desc->maxbufs) {
- _leave(" = 0 [max %zu/%zu]", desc->nbufs, desc->maxbufs);
- return 0;
- }
-
- this = &desc->bufs[desc->nbufs];
-
- this->index = ifa->ifa_index;
- this->netmask.s_addr = inet_make_mask(ifa->ifa_prefixlen);
- this->mtu = 0;
-
- rtattr = NLMSG_DATA(nlhdr) + NLMSG_ALIGN(sizeof(struct ifaddrmsg));
- len = NLMSG_PAYLOAD(nlhdr, sizeof(struct ifaddrmsg));
-
- name = "unknown";
- for (; RTA_OK(rtattr, len); rtattr = RTA_NEXT(rtattr, len)) {
- switch (rtattr->rta_type) {
- case IFA_ADDRESS:
- memcpy(&this->address, RTA_DATA(rtattr), 4);
- break;
- case IFA_LABEL:
- name = RTA_DATA(rtattr);
- break;
- }
- }
-
- _debug("%s: "NIPQUAD_FMT"/"NIPQUAD_FMT,
- name, NIPQUAD(this->address), NIPQUAD(this->netmask));
-
- desc->nbufs++;
- _leave(" = 0");
- return 0;
-}
-
-/*
- * parse an RTM_GETLINK response for MTUs
- */
-static int afs_rtm_getlink_if_parse(struct afs_rtm_desc *desc,
- struct nlmsghdr *nlhdr)
-{
- struct afs_interface *this;
- struct ifinfomsg *ifi;
- struct rtattr *rtattr;
- const char *name;
- size_t len, loop;
-
- ifi = (struct ifinfomsg *) NLMSG_DATA(nlhdr);
-
- _enter("{ix=%d}", ifi->ifi_index);
-
- for (loop = 0; loop < desc->nbufs; loop++) {
- this = &desc->bufs[loop];
- if (this->index == ifi->ifi_index)
- goto found;
- }
-
- _leave(" = 0 [no match]");
- return 0;
-
-found:
- if (ifi->ifi_type == ARPHRD_LOOPBACK && !desc->wantloopback) {
- _leave(" = 0 [loopback]");
- return 0;
- }
-
- rtattr = NLMSG_DATA(nlhdr) + NLMSG_ALIGN(sizeof(struct ifinfomsg));
- len = NLMSG_PAYLOAD(nlhdr, sizeof(struct ifinfomsg));
-
- name = "unknown";
- for (; RTA_OK(rtattr, len); rtattr = RTA_NEXT(rtattr, len)) {
- switch (rtattr->rta_type) {
- case IFLA_MTU:
- memcpy(&this->mtu, RTA_DATA(rtattr), 4);
- break;
- case IFLA_IFNAME:
- name = RTA_DATA(rtattr);
- break;
- }
- }
-
- _debug("%s: "NIPQUAD_FMT"/"NIPQUAD_FMT" mtu %u",
- name, NIPQUAD(this->address), NIPQUAD(this->netmask),
- this->mtu);
-
- _leave(" = 0");
- return 0;
-}
-
-/*
- * parse an RTM_GETLINK response for the MAC address belonging to the lowest
- * non-internal interface
- */
-static int afs_rtm_getlink_mac_parse(struct afs_rtm_desc *desc,
- struct nlmsghdr *nlhdr)
-{
- struct ifinfomsg *ifi;
- struct rtattr *rtattr;
- const char *name;
- size_t remain, len;
- bool set;
-
- ifi = (struct ifinfomsg *) NLMSG_DATA(nlhdr);
-
- _enter("{ix=%d}", ifi->ifi_index);
-
- if (ifi->ifi_index >= desc->mac_index) {
- _leave(" = 0 [high]");
- return 0;
- }
- if (ifi->ifi_type == ARPHRD_LOOPBACK) {
- _leave(" = 0 [loopback]");
- return 0;
- }
-
- rtattr = NLMSG_DATA(nlhdr) + NLMSG_ALIGN(sizeof(struct ifinfomsg));
- remain = NLMSG_PAYLOAD(nlhdr, sizeof(struct ifinfomsg));
-
- name = "unknown";
- set = false;
- for (; RTA_OK(rtattr, remain); rtattr = RTA_NEXT(rtattr, remain)) {
- switch (rtattr->rta_type) {
- case IFLA_ADDRESS:
- len = RTA_PAYLOAD(rtattr);
- memcpy(desc->mac, RTA_DATA(rtattr),
- min_t(size_t, len, 6));
- desc->mac_index = ifi->ifi_index;
- set = true;
- break;
- case IFLA_IFNAME:
- name = RTA_DATA(rtattr);
- break;
- }
- }
-
- if (set)
- _debug("%s: %02x:%02x:%02x:%02x:%02x:%02x",
- name,
- desc->mac[0], desc->mac[1], desc->mac[2],
- desc->mac[3], desc->mac[4], desc->mac[5]);
-
- _leave(" = 0");
- return 0;
-}
-
-/*
- * read the rtnetlink response and pass to parsing routine
- */
-static int afs_read_rtm(struct afs_rtm_desc *desc)
-{
- struct nlmsghdr *nlhdr, tmphdr;
- struct msghdr msg;
- struct kvec iov[1];
- void *data;
- bool last = false;
- int len, ret, remain;
-
- _enter("");
-
- do {
- /* first of all peek to see how big the packet is */
- memset(&msg, 0, sizeof(msg));
- iov[0].iov_base = &tmphdr;
- iov[0].iov_len = sizeof(tmphdr);
- len = kernel_recvmsg(desc->nlsock, &msg, iov, 1,
- sizeof(tmphdr), MSG_PEEK | MSG_TRUNC);
- if (len < 0) {
- _leave(" = %d [peek]", len);
- return len;
- }
- if (len == 0)
- continue;
- if (len < sizeof(tmphdr) || len < NLMSG_PAYLOAD(&tmphdr, 0)) {
- _leave(" = -EMSGSIZE");
- return -EMSGSIZE;
- }
-
- if (desc->datamax < len) {
- kfree(desc->data);
- desc->data = NULL;
- data = kmalloc(len, GFP_KERNEL);
- if (!data)
- return -ENOMEM;
- desc->data = data;
- }
- desc->datamax = len;
-
- /* read all the data from this packet */
- iov[0].iov_base = desc->data;
- iov[0].iov_len = desc->datamax;
- desc->datalen = kernel_recvmsg(desc->nlsock, &msg, iov, 1,
- desc->datamax, 0);
- if (desc->datalen < 0) {
- _leave(" = %zd [recv]", desc->datalen);
- return desc->datalen;
- }
-
- nlhdr = desc->data;
-
- /* check if the header is valid */
- if (!NLMSG_OK(nlhdr, desc->datalen) ||
- nlhdr->nlmsg_type == NLMSG_ERROR) {
- _leave(" = -EIO");
- return -EIO;
- }
-
- /* see if this is the last message */
- if (nlhdr->nlmsg_type == NLMSG_DONE ||
- !(nlhdr->nlmsg_flags & NLM_F_MULTI))
- last = true;
-
- /* parse the bits we got this time */
- nlmsg_for_each_msg(nlhdr, desc->data, desc->datalen, remain) {
- ret = desc->parse(desc, nlhdr);
- if (ret < 0) {
- _leave(" = %d [parse]", ret);
- return ret;
- }
- }
-
- } while (!last);
-
- _leave(" = 0");
- return 0;
-}
-
-/*
- * list the interface bound addresses to get the address and netmask
- */
-static int afs_rtm_getaddr(struct afs_rtm_desc *desc)
-{
- struct msghdr msg;
- struct kvec iov[1];
- int ret;
-
- struct {
- struct nlmsghdr nl_msg __attribute__((aligned(NLMSG_ALIGNTO)));
- struct ifaddrmsg addr_msg __attribute__((aligned(NLMSG_ALIGNTO)));
- } request;
-
- _enter("");
-
- memset(&request, 0, sizeof(request));
-
- request.nl_msg.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
- request.nl_msg.nlmsg_type = RTM_GETADDR;
- request.nl_msg.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
- request.nl_msg.nlmsg_seq = desc->msg_seq++;
- request.nl_msg.nlmsg_pid = 0;
-
- memset(&msg, 0, sizeof(msg));
- iov[0].iov_base = &request;
- iov[0].iov_len = sizeof(request);
-
- ret = kernel_sendmsg(desc->nlsock, &msg, iov, 1, iov[0].iov_len);
- _leave(" = %d", ret);
- return ret;
-}
-
-/*
- * list the interface link statuses to get the MTUs
- */
-static int afs_rtm_getlink(struct afs_rtm_desc *desc)
-{
- struct msghdr msg;
- struct kvec iov[1];
- int ret;
-
- struct {
- struct nlmsghdr nl_msg __attribute__((aligned(NLMSG_ALIGNTO)));
- struct ifinfomsg link_msg __attribute__((aligned(NLMSG_ALIGNTO)));
- } request;
-
- _enter("");
-
- memset(&request, 0, sizeof(request));
-
- request.nl_msg.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
- request.nl_msg.nlmsg_type = RTM_GETLINK;
- request.nl_msg.nlmsg_flags = NLM_F_REQUEST | NLM_F_ROOT;
- request.nl_msg.nlmsg_seq = desc->msg_seq++;
- request.nl_msg.nlmsg_pid = 0;
-
- memset(&msg, 0, sizeof(msg));
- iov[0].iov_base = &request;
- iov[0].iov_len = sizeof(request);
-
- ret = kernel_sendmsg(desc->nlsock, &msg, iov, 1, iov[0].iov_len);
- _leave(" = %d", ret);
- return ret;
-}
-
-/*
- * cull any interface records for which there isn't an MTU value
- */
-static void afs_cull_interfaces(struct afs_rtm_desc *desc)
-{
- struct afs_interface *bufs = desc->bufs;
- size_t nbufs = desc->nbufs;
- int loop, point = 0;
-
- _enter("{%zu}", nbufs);
-
- for (loop = 0; loop < nbufs; loop++) {
- if (desc->bufs[loop].mtu != 0) {
- if (loop != point) {
- ASSERTCMP(loop, >, point);
- bufs[point] = bufs[loop];
- }
- point++;
- }
- }
-
- desc->nbufs = point;
- _leave(" [%zu/%zu]", desc->nbufs, nbufs);
-}
-
-/*
- * get a list of this system's interface IPv4 addresses, netmasks and MTUs
- * - returns the number of interface records in the buffer
- */
-int afs_get_ipv4_interfaces(struct afs_interface *bufs, size_t maxbufs,
- bool wantloopback)
-{
- struct afs_rtm_desc desc;
- int ret, loop;
-
- _enter("");
-
- memset(&desc, 0, sizeof(desc));
- desc.bufs = bufs;
- desc.maxbufs = maxbufs;
- desc.wantloopback = wantloopback;
-
- ret = sock_create_kern(AF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE,
- &desc.nlsock);
- if (ret < 0) {
- _leave(" = %d [sock]", ret);
- return ret;
- }
-
- /* issue RTM_GETADDR */
- desc.parse = afs_rtm_getaddr_parse;
- ret = afs_rtm_getaddr(&desc);
- if (ret < 0)
- goto error;
- ret = afs_read_rtm(&desc);
- if (ret < 0)
- goto error;
-
- /* issue RTM_GETLINK */
- desc.parse = afs_rtm_getlink_if_parse;
- ret = afs_rtm_getlink(&desc);
- if (ret < 0)
- goto error;
- ret = afs_read_rtm(&desc);
- if (ret < 0)
- goto error;
-
- afs_cull_interfaces(&desc);
- ret = desc.nbufs;
-
- for (loop = 0; loop < ret; loop++)
- _debug("[%d] "NIPQUAD_FMT"/"NIPQUAD_FMT" mtu %u",
- bufs[loop].index,
- NIPQUAD(bufs[loop].address),
- NIPQUAD(bufs[loop].netmask),
- bufs[loop].mtu);
-
-error:
- kfree(desc.data);
- sock_release(desc.nlsock);
- _leave(" = %d", ret);
- return ret;
-}
-
-/*
- * get a MAC address from a random ethernet interface that has a real one
- * - the buffer should be 6 bytes in size
- */
-int afs_get_MAC_address(u8 mac[6])
-{
- struct afs_rtm_desc desc;
- int ret;
-
- _enter("");
-
- memset(&desc, 0, sizeof(desc));
- desc.mac = mac;
- desc.mac_index = UINT_MAX;
-
- ret = sock_create_kern(AF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE,
- &desc.nlsock);
- if (ret < 0) {
- _leave(" = %d [sock]", ret);
- return ret;
- }
-
- /* issue RTM_GETLINK */
- desc.parse = afs_rtm_getlink_mac_parse;
- ret = afs_rtm_getlink(&desc);
- if (ret < 0)
- goto error;
- ret = afs_read_rtm(&desc);
- if (ret < 0)
- goto error;
-
- if (desc.mac_index < UINT_MAX) {
- /* got a MAC address */
- _debug("[%d] %02x:%02x:%02x:%02x:%02x:%02x",
- desc.mac_index,
- mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
- } else {
- ret = -ENONET;
- }
-
-error:
- sock_release(desc.nlsock);
- _leave(" = %d", ret);
- return ret;
-}
diff --git a/fs/afs/vlocation.c b/fs/afs/vlocation.c
index 6c8e95a7c2c..3370cdb7256 100644
--- a/fs/afs/vlocation.c
+++ b/fs/afs/vlocation.c
@@ -602,7 +602,7 @@ int __init afs_vlocation_update_init(void)
/*
* discard all the volume location records for rmmod
*/
-void __exit afs_vlocation_purge(void)
+void afs_vlocation_purge(void)
{
afs_vlocation_timeout = 0;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 13:50:51 +0000